DDR Modelling Patterns Bit data, Casing/Liner/Tubing, and Cement.

DDR Modelling Patterns Bit data, Casing/Liner/Tubing, and Cement

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Need fixing Class Name Entity type RIG NAME DOCUMENT DEFINITION DRILLING RIG IDENTIFICATION CODEDOCUMENT DEFINITION NPD DRILLING RIG IDENTIFICATION CODEDOCUMENT DEFINITION RIG HEADING DIRECTIONSINGLE PROPERTY DIMENSION RIG HEAVE AMPLITUDESINGLE PROPERTY DIMENSION RIG PITCH ANGLESINGLE PROPERTY DIMENSION RIG ROLL ANGLESINGLE PROPERTY DIMENSION NPD WELLBORE IDENTIFICATION NUMBERDOCUMENT DEFINITION WELLBORE OFFICIAL IDENTIFICATION NUMBERDOCUMENT DEFINITION CEMENT GROUTCLASS OF COMPOUND CEMENTCLASS OF PARTICULATE MATERIAL WELL CASING ASSEMBLY NPS 11 3/4 INS etc.CLASS OF INANIMATE PHYSICAL OBJECT REPORT PERIODSINGLE PROPERTY DIMENSION BOREHOLECLASS OF INANIMATE PHYSICAL OBJECT BOLT HOLECLASS OF INANIMATE PHYSICAL OBJECT DUG HOLECLASS OF INANIMATE PHYSICAL OBJECT MOONPOOLCLASS OF INANIMATE PHYSICAL OBJECT TAPPING HOLECLASS OF INANIMATE PHYSICAL OBJECT WHEEP HOLECLASS OF INANIMATE PHYSICAL OBJECT IIP CLASSCLASS OF CLASS OF INDIVIDUAL V V

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Wellbore Model I WELL COMPLETION WELL COMPLETION STRING HANDLING COA COFO Activities related to making up/testing/running/ landing/pulling of the completion string /tailpipe and/or production tubing, including setting and testing of production packer(s) run in conjunction with the string. An assembly of downhole tubulars and equipment required to enable safe and efficient production from an oil or gas well. WELL CASING http://www.glossary.oilfield.slb.com/DisplayImage.cfm?ID=481 COFO COIPO WELL COMPLETION STRING CLASS WELL TUBING WELL CASING ASSEMBLY WELL COMPLETION ASSEMBLY WELL TUBING ASSEMBLY COFO WELL LINER WELL LINER ASSEMBLY COIPO COFO WELL CONDUCTOR CASING WELL SURFACE CASING WELL INTERMEDIATE CASING WELL PRODUCTION CASING WELL CONDUCTOR CASING ASSEMBLY WELL SURFACE CASING ASSEMBLY WELL ASSEMBLY WELL PRODUCTION CASING ASSEMBLY WELL INTERMEDIATE CASING ASSEMBLY WELL TUBULAR COMPLETION??

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Wellbore Model II THE WELLBORE DRILL BIT WELLBORE ROCK DRILL BIT ACME INC. WIDGET ALPHA NS 14 3/4 NS ROCK DRILL BIT 14 3/4 NS 13 3/4 COID ACME INC. WIDGET ALPHA COID DRILLING ACTIVITY #N-1 (NNN,j) DRILLING ACTIVITY #N (MMM,i+1) DRILLING ACTIVITY #N+2 (NNN,j+1) BIT RUN IN REPORTING PERIOD HOURS DRILLED IN REPORTING PERIOD DEPTH AT START DRILLING ACTIVITY #N DRILLING ACTIVITY #N-2 (MMM,i) BIT NNN RUN #j+1 BIT MMM RUN #i+1 BIT MMM RUN #i BIT NNN RUN #j BIT MMM RUN #i-1 DRILLING ACTIVITY #N-3 (MMM,i-1) DRILLING ACTIVITY #N+3 (NNN,j+2) DRILLING ACTIVITY #N-4 REPORTING PERIOD #m HOURS DRILLED DURING RUN HOLE MADE DURING DRILLING ACTIVITY #N DEPTH AT END DRILLING ACTIVITY #N BIT NNN RUN #j+2 DEPTH AT END DRILLING REPORT PERIOD DEPTH AT START DRILLING REPORT PERIOD HOLE MADE DURING DRILLING REPORT PERIOD REPORTING PERIOD #n REPORTING PERIOD #p A REPORTING PERIOD in this context is by definition fixed to be 24 hours. Starting times may however differ, e.g. 00:00, or 06:00. REPORTING PERIOD #o REPORTING PERIOD #n

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Wellbore Model III BIT MMM RUN #i BIT NNN RUN #j BIT MMM RUN #i-1 WELLBORE BIT RUN SECTION WELLBORE BIT RUN WELLBORE SECTION BOTTOM SURFACE WELLBORE BIT RUN SECTION END POINT WELLBORE BIT RUN SECTION START POINT COF COFO WELLBORE DRILLING SEQUENCE WELLBORE DRILLING SEQUENCE SECTION COF BIT MMM RUN #i-1 END POINT BIT MMM RUN #i START POINT BIT MMM RUN #i-1 START POINT WELLBORE SECTION BOTTOM #I-2 WELLBORE DRILLING SEQUENCE SECTION END POINT WELLBORE DRILLING SEQUENCE SECTION START POINT WELLBORE SECTION BOTTOM #n-1 WELLBORE SECTION BOTTOM #n Generic position/depth etc. BIT MMM RUN #i END POINT WELLBORE SECTION BOTTOM #n+1 Numbered sequentially independent of class membership, i.e. bit run or reporting period WELLBORE DRILLING SEQUENCE END WELLBORE DRILLING SEQUENCE START DISTANCE (coip?) vs. LENGTH (spd) COFO WELLBORE SECTION COA SURFACE COE WELLBORE REFERENCE DEVICE COF WELLBORE BIT RUN WELLBORE DRILLING SEQUENCE WELLBORE DRILLING SEQUENCE END WELLBORE DRILLING SEQUENCE START COA COE

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Indirect property high level modelling ISO 15926-4 INDIRECT PROPERTY ISO 15926-4 POSSIBLE INDIVIDUAL ISO 15926-4 PROPERTY SPACE INSTANCE ISO 15926-4 PROPERTY RANGE INSTANCE LENGTH RANGE COI COIP PS PR DISTANCE STRAIGHT LINEAR DISTANCE LENGTH OF PATH WELLBORE SECTION WELLBORE REPORTING PERIOD SECTION WELLBORE DRILLING SEQUENCE SECTION WELLBORE BIT RUN SECTION ISO 15926-4 SHAPE WELLBORE SECTION BOTTOM SURFACE WELLBORE REFERENCE DEVICE WELLBORE SECTION CENTERLINE SHAPE WELLBORE CENTERLINE SHAPE MEASURED DEPTH MEASURED DEPTH RELATIVE TO RKB ROCK DRILL BIT

© Det Norske Veritas AS. All rights reserved. 14 January 2011 COPOITI ISO 15926-4 INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF THING ISO 15926-4 THING ISO 15926-4 EXPRESS INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF GREGORIAN DATE AND UTC TIME ISO 15926-4 POINT IN TIME YYYY-MM-DD THH:MM UTC - YYYY-MM-DD THH:MM UTC YYYY-MM-DD THH:MM UTC POIT PEIT WELLBORE DRILLING SEQUENCE PERIOD START WELLBORE DRILLING SEQUENCE PERIOD WELLBORE DRILLING SEQUENCE PERIOD END Figure 46 BE The wellbore drilling sequence The start of the wellbore drilling sequence The end of the wellbore drilling sequence AEV whole WELLBORE DRILLING SEQUENCE END WELLBORE DRILLING SEQUENCE START COE COTS class_of_predecessor WELLBORE DRILLING SEQUENCE COI Figure 42 wholepart wholepart COPOITCOPEITI whole part COIBEN DATE REPRESENTATION RF COA class_of_successor class_of_predecessor class_of_successor part whole

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Design Basis  Bit Data Section - The following entries are concerned with the “drill bit” - Size (in) - Model - Dull grade - The following entries are concerned with the “activity” - Hours drilled (hrs) - Hours drilled (Run) (hrs) - Bit/Run number - The following entries are concerned with the “hole” - ROP (m/hr) - Total ROP (m/hr) - Total Hole Made (Run) (m) - Total Hours drilled (Run) (hrs) - Hole Made (Run) (m) - MD ln (mKB) - MD Out (mKB)

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Rock Drill Bit High-level Taxonomy ROCK DRILL BIT DRILL BIT CORE DRILL BIT DIAMOND DRILL BIT FIXED CUTTER DRILL BIT ROCK DRILL BIT 3 NS ROCK DRILL BIT 36 NS ROLLER CONE DRILL BIT SCREWTYPE DRILL BIT DULL ROCK DRILL BIT

© Det Norske Veritas AS. All rights reserved. 14 January 2011 DULL ROCK DRILL BIT IADC Dull Grading ROCK DRILL BIT CORE DRILL BIT DIAMOND DRILL BIT FIXED CUTTER DRILL BIT ROCK DRILL BIT 3 NS ROCK DRILL BIT 36 NS ROLLER CONE DRILL BIT SCREWTYPE DRILL BIT STEEL TOOTH DRILL BIT DULL GRADE 0 INSERT ROLLER DRILL BIT STEEL TOOTH DRILL BIT MILLED TOOTH ROLLER DRILL BIT ROLLER CONE REAMING BIT INSERT DRILL BIT DULL GRADE 0 FIXED CUTTER DRILL BIT DULL GRADE 0 STEEL TOOTH DRILL BIT DULL GRADE 8 INSERT DRILL BIT DULL GRADE 8 FIXED CUTTER DRILL BIT DULL GRADE 8 IADC DRILL BIT DULL GRADING CLASS IADC ROLLER CONE DRILL BIT DULL GRADING CLASS IADC FIXED CUTTER DRILL BIT DULL GRADING CLASS IADC INSERT DRILL BIT DULL GRADE CLASS IADC STEEL TOOTH DRILL BIT DULL GRADE CLASS DULL FIXED CUTTER DRILL BIT DULL ROLLER CONE DRILL BIT DULL STEEL TOOTH DRILL BIT DULL INSERT ROLLER DRILL BIT This will not be completed as a part of this project. See “9. DDR Dull Grade” for solution.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Wellbore, wellbore section and rock drill bit sizes Size (in) DAILY DRILLING REPORT ROCK DRILL BIT SIZE CODE ASSIGNMENT CLASS represented COIPO pattern COId ROCK DRILL BIT 14 3/4 NS 14 3/4 ES DAILY DRILLING REPORT ROCK DRILL BIT SIZE CODE STRING CLASS RF COCOInd DAILY DRILLING REPORT ROCK DRILL BIT CLASS ROCK DRILL BIT DRILL BIT WELLBORE 14 3/4 NS WELLBORE SECTION 14 3/4 NS DAILY DRILLING REPORT WELLBORE SIZE CODE STRING CLASS DAILY DRILLING REPORT WELLBORE CLASS DAILY DRILLING REPORT WELLBORE SIZE CODE ASSIGNMENT CLASS DAILY DRILLING REPORT WELLBORE SECTION SIZE CODE STRING CLASS DAILY DRILLING REPORT WELLBORE SECTION CLASS DAILY DRILLING REPORT WELLBORE SECTION SIZE CODE ASSIGNMENT CLASS

© Det Norske Veritas AS. All rights reserved. 14 January 2011 2. DDR Depth m MD for end of activity Depth m MD for end of activity MEASURED DEPTH TO DRILLING OPERATION RELATIVE RKB - METRE A ‘template input list’ that is the input required to state the depth in meters of an actual wellbore at the end of a ‘wellbore drilling sequence’. Role 1: The depth in meters. Role 2: The identifier of the actual ‘wellbore drilling sequence’, e.g. ‘wellbore bit run’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. property_spaceclass_of_possessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE SECTION BOTTOM SURFACE AI PR MEASURED DEPTH RELATIVE TO RKB NNNN.NN m AVERAGE P WELLBORE REFERENCE DEVICE WELLBORE DRILLING SEQUENCE WELLBORE SECTION MY WELLBORE SECTION MY WELLBORE DRILLING SEQUENCE MY WELLBORE DRILLING SEQUENCE END WELLBORE DRILLING SEQUENCE END WELLBORE DRILLING SEQUENCE SECTION THE POINT IN TIME METRE (RDS1332674) 1 2 WELLBORE SECTION BOTTOM SURFACE WELLBORE REFERENCE LOCATION ?????? Sort out what is meant by “Activity” in this context.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 3. DDR Drill Bit Size (in) Size (in) COCOId DAILY DRILLING REPORT ROCK DRILL BIT SIZE CODE ASSIGNMENT CLASS represented COIPO pattern COId ROCK DRILL BIT 14 3/4 NS 14 3/4 ES DAILY DRILLING REPORT ROCK DRILL BIT SIZE CODE STRING CLASS RF COCOInd DAILY DRILLING REPORT ROCK DRILL BIT CLASS ROCK DRILL BIT ????? BIT ARTEFACT DRILL BIT ACME INC. WIDGET ALPHA NS 14 3/4 NS DDR ROCK DRILL BIT SIZE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The wellbore drill bit An anonymous objet created by the expansion Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 4. DDR Bit/Run number Bit/Run number WELLBORE BIT RUN SECTION IDENTIFIER ASSIGNMENT CLASS represented COF pattern COId WELLBORE BIT RUN SECTION NNNNN.mm ES WELLBORE BIT RUN SECTION IDENTIFIER STRING CLASS RF WELLBORE BIT RUN #NNNNN.mm WELLBORE BIT RUN SECTION IDENTIFIER TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the identifier of an actual ‘wellbore bit run section’. The identifier is a concatenation of the identifier of the actual ‘rock drill bit’ and the ‘sequence no’ identifying the no of times the ‘rock drill bit’ has been used. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The ‘sequence #’ of the “run” of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a member of ‘wellbore bit run section’ The wellbore drill bit An anonymous objet created by the expansion WELLBORE BIT RUN SECTION #NNNNN.mm WELLBORE BIT RUN ACME INC. WIDGET ALPHA NS 14 3/4 NS #NNNNN.mm WELLBORE DRILLING SEQUENCE WELLBORE BIT RUN ACME INC. WIDGET ALPHA NS 14 3/4 NS #NNNNN.1 WELLBORE BIT RUN ACME INC. WIDGET ALPHA NS 14 3/4 NS #NNNNN.nn ACME INC. WIDGET ALPHA NS 14 3/4 NS #NNNNN COACOIPO COP/OR ROCK DRILL BIT WELLBORE BIT RUN PP WELLBORE BIT RUN SECTION PARTICIPATION IN WELLBORE BIT RUN ROCK DRILL BIT PARTICIPATION IN WELLBORE BIT RUN WELLBORE BIT RUN IDENTIFIER STRING CLASS WELLBORE BIT RUN IDENTIFIER ASSIGNMENT CLASS WELLBORE BIT RUN IDENTIFIER TEMPLATE SIGNATURE RF Updated represented COA AF

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 5. DDR Drill Bit Model COCOId MANUFACTURERS PRODUCT IDENTIFICATION CODE represented COIPO pattern COId ROCK DRILL BIT 14 3/4 NS ACME INC. WIDGET ALPHA ES PRODUCT IDENTIFIER CODE STRING CLASS RFCOCOInd ARTEFACT CLASS ROCK DRILL BIT ACME INC. WIDGET ALPHA NS 14 3/4 NS PRODUCT IDENTIFIER CODE STRING CLASS TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the “Model” of an actual ‘rock drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The “model” code of the class of which the actual ‘wellbore drill bit’ is a member. The SW shall create the anonymous object and create an instance of ‘class_of_identification’ linking the EXPRESS_string that is the “model” to the COIPO representing the anonymous object. The wellbore drill bit An anonymous objet created by the expansion Model Role 1 Role 2 Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 6. DDR Hours drilled (hrs) property_spaceclass_of_possessor WELLBORE REPORTING PERIOD DRILLING SEQUENCE (RDS1714177711) PR P classifier classified UBOPR P classified LBOPR MM.MM-n m/hr PQ MM.MM-n MM.MM+n HOUR (RDS1326734) RN input result input result COId represented pattern MM.MM-n ER TIME RANGE MM.MM °C TIME RANGE (RDSXXXXXX) mm.mm 1 MY WELLBORE ***** SEQUENCE whole Hours drilled (hrs) classifier m/hr AI PR TIME DRILLED IN REPORTING PERIOD-HOURS A ‘template input list’ that is the input required to state the membership of an actual ‘rock drill bit’ in a particular ‘IADC rock drill bit dull grade class’. Role 1: The identifier for the actual ‘rock drill bit’, Role 2: The dull grade code of the actual ‘rock drill bit’. The SW shall check for the existence of a ‘rock drill bit dull grade xxx’ reflecting the code instance, and establish such class if it not present and make the actual ‘rock drill bit’ a member of the actual ‘DRILL BIT DULL GRADE NNNNNN’ class This is to indicate that there are always ranges and tolerances involved. MM.MM+n m/hr WELLBORE DRILLING SEQUENCE (RDS1714173351) TIMEDRILLED IN REPORTING PERIOD MM.MM m/hr AVERAGE P Template signature HOLD DIFFERENT NAME!!! What is the underlying concept? Update

© Det Norske Veritas AS. All rights reserved. 14 January 2011 7. DDR MD In (mKB) MD ln (mKB) DDR MEASURED DEPTH OF DRILL BIT IN METRE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. property_spaceclass_of_possessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE SECTION BOTTOM SURFACE AI PR MEASURED DEPTH RELATIVE TO RKB NNNN.NN m AVERAGE P WELLBORE REFERENCE DEVICE WELLBORE DRILLING SEQUENCE WELLBORE SECTION MY WELLBORE SECTION MY WELLBORE DRILLING SEQUENCE MY WELLBORE DRILLING SEQUENCE START WELLBORE DRILLING SEQUENCE SECTION THE POINT IN TIME METRE (RDS1332674) 1 2 WELLBORE SECTION BOTTOM SURFACE WELLBORE DRILLING SEQUENCE SECTION START POINT WELLBORE DRILLING SEQUENCE START MEASURED DEPTH OF BIT AT START ACTIVITY WELLBORE SECTION BOTTOM SURFACE DDR MEASURED DEPTH OF WELLBORE START OF RUN - METRE TEMPLATE SIGNATURE Change to “MEASURED DEPTH OF WELLBORE START OF RUN – METRE”

© Det Norske Veritas AS. All rights reserved. 14 January 2011 8. DDR MD Out (mKB) MD Out (mKB) DDR MEASURED DEPTH OF DRILL BIT METRE OUT TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. property_spaceclass_of_possessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE SECTION BOTTOM SURFACE AI PR MEASURED DEPTH RELATIVE TO RKB NNNN.NN m AVERAGE P WELLBORE REFERENCE DEVICE WELLBORE DRILLING SEQUENCE WELLBORE SECTION MY WELLBORE SECTION MY WELLBORE DRILLING SEQUENCE MY WELLBORE DRILLING SEQUENCE START WELLBORE DRILLING SEQUENCE SECTION THE POINT IN TIME METRE (RDS1332674) 1 2 WELLBORE SECTION BOTTOM SURFACE WELLBORE DRILLING SEQUENCE SECTION END POINT WELLBORE DRILLING SEQUENCE END MEASURED DEPTH OF BIT AT END ACTIVITY ROCK DRILL BIT DDR MEASURED DEPTH OF WELLBORE END OF RUN - METRE TEMPLATE SIGNATURE Change to “MEASURED DEPTH OF WELLBORE END OF RUN – METRE”

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 9. DDR Dull Grade Dull grade COCOId IADC ROCK DRILL BIT DULL GRADE CODE ASSIGNMENT CLASS represented COIPO pattern COId ROCK DRILL BIT IADC DULL GRADE NNNNNNN nnnnnnn ES IADC ROCK DRILL BIT DULL GRADE CODE STRING CLASS RF COCOInd IADC ROCK DRILL BIT DULL GRADE CLASS DULL ROCK DRILL BIT DRILL BIT XXXX DRILL BIT IADC ROCK DRILL BIT DULL GRADE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the membership of an actual ‘rock drill bit’ in a particular ‘IADC rock drill bit dull grade class’. Role 1: The identifier for the actual ‘rock drill bit’, Role 2: The dull grade code of the actual ‘rock drill bit’. The SW shall check for the existence of a ‘rock drill bit dull grade xxx’ reflecting the code instance, and establish such class if it not present and make the actual ‘rock drill bit’ a member of the actual ‘DRILL BIT DULL GRADE NNNNNN’ class The wellbore drill bit There are 8x8x…… possible classes. Will not be defined in this project. ROCK DRILL BIT Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 10. DDR Hole Made (Run) (m) Hole Made (Run) (m) DDR HOLE MADE DURING BIT RUN IN METRE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. property_spacepossessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE BIT RUN SECTION AI PR WELLBORTE BIT RUN SECTION LENGTH NNNN.NN m AVERAGE P WELLBORE REFERENCE DEVICE WELLBORE SECTION WELLBORE DRILLING SEQUENCE SECTION METRE (RDS1332674) 1 WELLBORE BIT RUN SECTION Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 11. Hours drilled (Run) (hrs) property_spaceclass_of_possessor WELLBORE REPORTING PERIOD DRILLING SEQUENCE (RDS1714177711) PR P classifier classified UBOPR P classified LBOPR MM.MM-n m/hr PQ MM.MM-n MM.MM+n HOUR (RDS1326734) RN input result input result COId represented pattern MM.MM-n ER TIME RANGE MM.MM °C TIME RANGE (RDSXXXXXX) mm.mm 1 MY WELLBORE ***** SEQUENCE whole Hours drilled (hrs) classifier m/hr AI PR TIME DRILLED IN REPORTING PERIOD-HOURS A ‘template input list’ that is the input required to state the membership of an actual ‘rock drill bit’ in a particular ‘IADC rock drill bit dull grade class’. Role 1: The identifier for the actual ‘rock drill bit’, Role 2: The dull grade code of the actual ‘rock drill bit’. The SW shall check for the existence of a ‘rock drill bit dull grade xxx’ reflecting the code instance, and establish such class if it not present and make the actual ‘rock drill bit’ a member of the actual ‘DRILL BIT DULL GRADE NNNNNN’ class This is to indicate that there are always ranges and tolerances involved. MM.MM+n m/hr WELLBORE DRILLING SEQUENCE (RDS1714173351) TIMEDRILLED IN REPORTING PERIOD MM.MM m/hr AVERAGE P Template signature HOLD DIFFERENT NAME!!! What is the underlying concept? Draft only. Copy from 6 to remind me to do this.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 12. DDR ROP (m/hr) property_spaceclass_of_possessor WELLBORE BIT RUN SECTION (RDS16453458) PR P classifier classified UBOPR P classified LBOPR MM.MM-n m/hr PQ MM.MM-n MM.MM+n METRE PER HOUR (RDS1351349) RN input result input result COId represented pattern MM.MM-n ER SPEED RANGE MM.MM °C SPEED RANGE (RDS13103920) mm.mm 1 MY WELLBORE ***** SECTION whole ROP (m/hr) classifier m/hr AI PR DRILL BIT RATE OF PENETRATION DURING BIT RUN - METRE PER HOUR A ‘template input list’ that is the input required to state the membership of an actual ‘rock drill bit’ in a particular ‘IADC rock drill bit dull grade class’. Role 1: The identifier for the actual ‘rock drill bit’, Role 2: The dull grade code of the actual ‘rock drill bit’. The SW shall check for the existence of a ‘rock drill bit dull grade xxx’ reflecting the code instance, and establish such class if it not present and make the actual ‘rock drill bit’ a member of the actual ‘DRILL BIT DULL GRADE NNNNNN’ class This is to indicate that there are always ranges and tolerances involved. MM.MM+n m/hr WELLBORE SECTION (RDS16453593) DRILL BIT RATE OF PENETRATION DURING BIT RUN MM.MM m/hr AVERAGE P Template signature HOLD Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 13. DDR Total Hole Made (Run) (m) Total Hole Made (Run) (m) DDR HOLE MADE DURING REPORTING PERIOD - METRE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. property_spacepossessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE REPORTING PERIOD SECTION AI PR WELLBORE REPORTING PERIOD SECTION LENGTH NNNN.NN m AVERAGE P WELLBORE REFERENCE DEVICE WELLBORE SECTION WELLBORE DRILLING SEQUENCE SECTION METRE (RDS1332674) 1 WELLBORE REPORTING PERIOD SECTION Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 14. Total Hours drilled (Run) (hrs) property_spaceclass_of_possessor WELLBORE REPORTING PERIOD DRILLING SEQUENCE (RDS1714177711) PR P classifier classified UBOPR P classified LBOPR MM.MM-n m/hr PQ MM.MM-n MM.MM+n HOUR (RDS1326734) RN input result input result COId represented pattern MM.MM-n ER TIME RANGE MM.MM °C TIME RANGE (RDSXXXXXX) mm.mm 1 MY WELLBORE ***** SEQUENCE whole Hours drilled (hrs) classifier m/hr AI PR TIME DRILLED IN REPORTING PERIOD-HOURS A ‘template input list’ that is the input required to state the membership of an actual ‘rock drill bit’ in a particular ‘IADC rock drill bit dull grade class’. Role 1: The identifier for the actual ‘rock drill bit’, Role 2: The dull grade code of the actual ‘rock drill bit’. The SW shall check for the existence of a ‘rock drill bit dull grade xxx’ reflecting the code instance, and establish such class if it not present and make the actual ‘rock drill bit’ a member of the actual ‘DRILL BIT DULL GRADE NNNNNN’ class This is to indicate that there are always ranges and tolerances involved. MM.MM+n m/hr WELLBORE DRILLING SEQUENCE (RDS1714173351) TIMEDRILLED IN REPORTING PERIOD MM.MM m/hr AVERAGE P Template signature HOLD DIFFERENT NAME!!! What is the underlying concept? Draft only. Copy from 6 to remind me to do this.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 15. DDR Total ROP (m/hr) property_spaceclass_of_possessor PR P classifier classified UBOPR P classified LBOPR MM.MM-n m/hr PQ -40 85 METRE PER HOUR (RDS1351349) RN input result input result COId represented pattern -40 ER SPEED RANGE MM.MM °C SPEED RANGE (RDS13103920) mm.mm 1 MY WELLBORE ***** SECTION whole Total ROP (m/hr) classifier m/hr AI PR DRILL BIT RATE OF PENETRATION DURING REPORTING PERIOD - METRE PER HOUR A ‘template input list’ that is the input required to state the membership of an actual ‘rock drill bit’ in a particular ‘IADC rock drill bit dull grade class’. Role 1: The identifier for the actual ‘rock drill bit’, Role 2: The dull grade code of the actual ‘rock drill bit’. The SW shall check for the existence of a ‘rock drill bit dull grade xxx’ reflecting the code instance, and establish such class if it not present and make the actual ‘rock drill bit’ a member of the actual ‘DRILL BIT DULL GRADE NNNNNN’ class This is to indicate that there are always ranges and tolerances involved. MM.MM+n m/hr WELLBORE SECTION (RDS16453593) WELLBORE REPORTING PERIOD SECTION (RDS1719668841) DRILL BIT RATE OF PENETRATION DURING REPORTING PERIOD MM.MM m/hr AVERAGE P Template signature HOLD Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 17. DDR Type of pipe Type of pipe COCOId DAILY DRILLING REPORT WELL COMPLETION CODE ASSIGNMENT CLASS represented pattern COId C ES DAILY DRILLING REPORT WELL COMPLETION CODE STRING CLASS RFCOCOInd DAILY DRILLING REPORT WELL COMPLETION ASSEMBLY CLASS ACME INC.TUBULAR XXX NS 14 3/4 NS DAILY DRILLING REPORT WELL COMPLETION CODE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the class of tubular an actual ‘tubular section’. Role 1: The identifier for the actual ‘tubular section’, Role 2: The class code of the actual ‘tubular section’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet created by the expansion L T WELL CASING ASSEMBLY WELL COMPLETION ASSEMBLY WELL TUBING ASSEMBLY WELL LINER ASSEMBLY ARTEFACT DAILY DRILLING REPORT EQUIPMENT CLASS HOLD Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 18. Casing Type Type of pipe COCOId DAILY DRILLING REPORT WELL CASING ASSEMBLY CODE ASSIGNMENT CLASS represented pattern COId Top ES DAILY DRILLING REPORT WELL CASING ASSEMBLY CODE STRING CLASS RFCOCOInd DAILY DRILLING REPORT WELL CASING ASSEMBLY CLASS DAILY DRILLING REPORT WELL CASING ASSEMBLY CODE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the class of tubular an actual ‘tubular section’. Role 1: The identifier for the actual ‘tubular section’, Role 2: The class code of the actual ‘tubular section’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet that represent the “object in focus” created by the expansion Intermediate Production WELL CASING ASSEMBLY DAILY DRILLING REPORT EQUIPMENT CLASS WELL PRODUCTION CASING ASSEMBLY WELL INTERMEDIATE CASING ASSEMBLY WELL SURFACE CASING ASSEMBLY WELL COMPLETION ASSEMBLY #NNNNN Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 19. DDR Run Date/Time Run Date/Time WELLBOR TUBULAR SECTION RUN POINT IN TIMETEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the class of tubular an actual ‘tubular section’. Role 1: The identifier for the actual ‘tubular section’, Role 2: The actual ext string’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN ISO 15926-4 INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF THING ISO 15926-4 THING ISO 15926-4 EXPRESS INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF GREGORIAN DATE AND UTC TIME ISO 15926-4 POINT IN TIME YYYY-MM-DD THH:MM UTC - YYYY-MM-DD THH:MM UTC YYYY-MM-DD THH:MM UTC POIT PEIT Figure 46 BE The wellbore casing run The start of the wellbore casing run The end of the wellbore casing run AEV whole WELLBORE CASING RUN END WELLBORE CASING RUN START COE COTS* class_of_predecessor WELLBORE CASING RUN COI Figure 42 whole part wholepart whole part COIBEN “DATE FORMAT” WELLBORE TUBULAR SECTION RUN Unclear if this is start or stop. Develop both start and end + duration

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 20. Description Description COCOD DAILY DRILLING REPORT RUN IN HOLE DESCRIPTION ASSIGNMENT CLASS represented pattern COId Blablablablablabla ES UNSPECIFIED STRING RFCOInd DAILY DRILLING REPORT WELL COMPLETION ITEM DESCRIPTION TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the class of tubular an actual ‘tubular section’. Role 1: The identifier for the actual ‘tubular section’, Role 2: The actual ext string’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN RUN IN HOLE ISO 15926-4 ACTIVITY DAILY DRILLING REPORT RUN IN HOLE DESCRIPTION Update http://www.glossary.oilfield.slb.com/Display.cfm?Term=run%20in%20hole

© Det Norske Veritas AS. All rights reserved. 14 January 2011 21. DDR Nominal OD (in) Nominal OD (in) COCOId DAILY DRILLING REPORT WELL COMPLETION STRING SIZE CODE ASSIGNMENT CLASS represented COIPO pattern COId PIPE API 5CT 11 3/4 11-3/4 ES DAILY DRILLING REPORT WELL COMPLETION STRING SIZE CODE STRING CLASS RF COCOInd DAILY DRILLING REPORT WELL COMPLETION STRING CLASS API 5CT PIPE ????? BIT ARTEFACT THREADED PIPE DAILY DRILLING REPORT WELL COMPLETION STRING SIZE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. Note the missing “-” API 5CT NOMINAL SIZE CODE ASSIGNMENT CLASS “OBJECT IN FOCUS” The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN API 5CT NOMINAL SIZE CODE STRING CLASS API 5CT NOMINAL SIZE PIPE CLASS Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 23. DDR Nominal Weight (lbs/ft) Nominal Weight (lbs/ft) COCOId API 5CT WEIGHT RATED PIPE CODE ASSIGNMENT CLASS represented COIPO pattern COId PIPE API 5CT NOMINAL WEIGHT 32.75 LB/FT 32.75 ES DAILY DRILLING REPORT WEIGHT CODE STRING CLASS RF COCOInd DAILY DRILLING REPORT WEIGHT RATED PIPE CLASS API 5CT PIPE ????? PIPE ARTEFACT THREADED PIPE DAILY DRILLING REPORT WEIGHT CODE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. Note the missing “-” “OBJECT IN FOCUS” The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN DAILY DRILLING REPORT WEIGHT RATED PIPE CODE ASSIGNMENT CLASS API 5CT WEIGHT CODE STRING CLASS API 5CT WEIGHT RATED PIPE CLASS Done Need to add from spreadsheet to RDL?

© Det Norske Veritas AS. All rights reserved. 14 January 2011 24. DDR Nominal Grade Nominal Grade COCOId DAILY DRILLING REPORT GRADE CODE ASSIGNMENT CLASS represented COIPO pattern COId API 5CT - GRADE C90 TYPE 1 OBJECT C90-1 ES DAILY DRILLING REPORT GRADE CODE STRING CLASS RF COCOInd API 5CT 7TH. EDITION GRADE CLASS CARBON STEEL OBJECT NNNNN ARTEFACT STEEL OBJECT DAILY DRILLING REPORT GRADE CODE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. API 5CT 7TH. EDITION COMPOUND CLASS “OBJECT IN FOCUS” The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 25. DDR Nominal Connection Nominal Connection COCOId DAILY DRILLING REPORT CONNECTION CODE ASSIGNMENT CLASS represented COIPO pattern COId API 5B BUTTRESS CASING THREAD B ES DAILY DRILLING REPORT CONNECTION CODE STRING CLASS RF COCOInd DAILY DRILLING REPORT CONNECTION CLASS xxxxxxx NNNNN ARTEFACT STEEL OBJECT DAILY DRILLING REPORT CONNECTION CODE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. “OBJECT IN FOCUS” The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN API 5CT 7TH. EDITION TABLE E1 CONNECTION CODE STRING CLASS API 5CT 7TH. EDITION TABLE E3 CONNECTION CODE STRING CLASS API 5CT 7TH. EDITION TABLE E1 CONNECTION CLASS API 5L ????. EDITION CONNECTION CLASS API 5CT 7TH. EDITION TABLE E3 CONNECTION CLASS API 5CT 7TH. EDITION TABLE E1 CONNECTION CODE ASSIGNMENT CLASS API 5CT 7TH. EDITION TABLE E3 CONNECTION CODE ASSIGNMENT CLASS Done, but need to add codes and classes.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 26. Length (m) Length (m) WELLBORE RUN SECTION LENGTH - METRE TEMPLATE SIGNATURE property_space possessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE RUN SECTION AI PR WELLBORE RUN SECTION LENGTH NNNN.NN m AVERAGE P ARTEFACT WELLBORE COMPLETED SECTION METRE (RDS1332674) 1 WELLBORE RUN SECTION WELLBORE SECTION class_of_locatedclass_of_locator CORL COIPO COF 2 DEFAULT This needs to have an identifier. What will the format be? Check naming against 19.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 WELLBORE RUN SECTION TOP 27. Top/Hanger MD (mKB) Top/Hanger MD (mKB) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_spaceclass_of_possessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE RUN SECTION TOP AI PR MEASURED DEPTH RELATIVE TO RKB NNNN.NN m AVERAGE P WELLBORE REFERENCE DEVICE MY WELLBORE RUN SECTION METRE (RDS1332674) 1 2 WELL CASING ASSEMBLY MEASURED DEPTH TOP WELLBORE RUN SECTION – METRE TEMPLATE SIGNATURE WELLBORE RUN SECTION COFO WELL LINER ASSEMBLY WELL TUBING ASSEMBLY WELL CASING ASSEMBLY (SECTION?) WELL LINER ASSEMBLY (SECTION?) WELL TUBING ASSEMBLY (SECTION?) This needs to have an identifier. What will the format be? DEFAULT AI COIP IP MEASURED DEPTH RELATIVE TO RKB WELLBORE RUN SECTION TOP Check naming against 19.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 WELLBORE RUN SECTION BOTTOM 28. Bottom/Shoe MD (mKB) Bottom/Shoe MD (mKB) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_spaceclass_of_possessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE RUN SECTION BOTTOM AI PR MEASURED DEPTH RELATIVE TO RKB NNNN.NN m AVERAGE P WELLBORE REFERENCE DEVICE MY WELLBORE RUN SECTION METRE (RDS1332674) 1 2 WELL CASING ASSEMBLY MEASURED DEPTH BOTTOM WELLBORE RUN SECTION – METRE TEMPLATE SIGNATURE WELLBORE RUN SECTION COFO WELL LINER ASSEMBLY WELL TUBING ASSEMBLY WELL CASING ASSEMBLY (SECTION?) WELL LINER ASSEMBLY (SECTION?) WELL TUBING ASSEMBLY (SECTION?) This needs to have an identifier. What will the format be? DEFAULT AI COIP IP MEASURED DEPTH RELATIVE TO RKB WELLBORE RUN SECTION BOTTOM Check naming against 19.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 WELL TUBING ASSEMBLY WELL LINER ASSEMBLY Wellbore Model For “Cement” WELL COMPLETION WELL COMPLETION STRING HANDLING COA COFO WELL CASING COFO COIPO WELL TUBING WELL COMPLETION ASSEMBLY COFO WELL LINER COIPO COFO WELL CONDUCTOR CASING WELL SURFACE CASING WELL INTERMEDIATE CASING WELL PRODUCTION CASING WELL CONDUCTOR CASING ASSEMBLY WELL SURFACE CASING ASSEMBLY WELL ASSEMBLY WELL PRODUCTION CASING ASSEMBLY WELL INTERMEDIATE CASING ASSEMBLY WELL TUBULAR COMPLETION?? WELLBORE ASSEMBLY ARTEFACT An artefact that is a wellbore completed with structures (casing, lining etc.). WELL CASING ASSEMBLY class_of_whole WELL PRODUCTION TUBING ASSEMBLY class_of_part class_of_whole class_of_part WELLBORE COMPLETED SECTION class_of_whole class_of_part CEMENT ZONE WELLBORE SECTION Focal point A wellbore section characterized by the cementing job (length, type of cement, etc.).

© Det Norske Veritas AS. All rights reserved. 14 January 2011 class_of_whole class_of_part WELLBORE ASSEMBLY ARTEFACT An artefact that is a wellbore completed with structures (casing, lining etc.). CEMENT ZONE WELLBORE SECTION WELL ASSEMBLY ISO 15926-4 ACTIVITY WELLBORE CEMENT JOB WELLBORE CEMENTING CEMENTING CEMENT PUMPING CEMENT MIXING …..STRING….. WELLBORE CEMENT SQUEEZING Cement squeeze Cement squeeze type WITSML Job type WITSML Type squeeze Secondary cement CEMENT DISPLACING WITSML Cement job http://w3.energistics.org/schema/witsml_v1.3.1_data/XML_Examples/cementJob.xml ISO 15926-4 PARTICULATE MATERIAL ISO 15926-4 COMPOUND ARTEFACT CEMENT CEMENT SLURRY (WET CONCRETE) CURED CEMENT WELLBORE COMPLETED SECTION PRIMARY WELLBORE CEMENT JOB

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 30. Start Date/Time Start Date/Time WELLBORE CEMENT JOB START DATE AND TIME A ‘template input list’ that is the input required to state the start date/time of an actual ‘wellbore cementing sequence’. Role 1: The identifier for the actual ‘wellbore cementing sequence’. Role 2: The actual date/time for the start of the ’wellbore cementing sequence’ in the date/time format specified by the ‘date format’ class. Note: The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN ISO 15926-4 INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF THING ISO 15926-4 THING ISO 15926-4 EXPRESS INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF GREGORIAN DATE AND UTC TIME ISO 15926-4 POINT IN TIME YYYY-MM-DD THH:MM UTC - YYYY-MM-DD THH:MM UTC YYYY-MM-DD THH:MM UTC POIT PEIT Figure 46 BE The wellbore cement job The start of the wellbore cement job The end of the wellbore cement job AEV whole WELLBORE CEMENT JOB END WELLBORE CEMENT JOB START COE COTS class_of_predecessor WELLBORE CEMENT JOB COMDO Figure 42 whole part wholepart whole part COIBEN “DATE FORMAT” COECOA 1 2

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 31. End Date/Time EndDate/Time A ‘template input list’ that is the input required to state the end date/time of an actual ‘wellbore cementing sequence’. Role 1: The identifier for the actual ‘wellbore cementing sequence’. Role 2: The actual date/time for the end of the ’wellbore cementing sequence’ in the date/time format specified by the ‘date format’ class. Note: The SW shall …… The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN ISO 15926-4 INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF THING ISO 15926-4 THING ISO 15926-4 EXPRESS INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF GREGORIAN DATE AND UTC TIME ISO 15926-4 POINT IN TIME YYYY-MM-DD THH:MM UTC - YYYY-MM-DD THH:MM UTC YYYY-MM-DD THH:MM UTC POIT PEIT Figure 46 BE The wellbore cement job The start of the wellbore cement job The end of the wellbore cement job AEV whole WELLBORE CEMENT JOB END WELLBORE CEMENT JOB START COE COTS class_of_predecessor WELLBORE CEMENT JOB COMDO Figure 42 whole part wholepart whole part COIBEN “DATE FORMAT” COECOA 1 2 WELLBORE CEMENT JOB END DATE AND TIME

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 32. DDR Job Type Job Type COCOId DAILY DRILLING REPORT WELLBORE CEMENT JOB CODE ASSIGNMENT CLASS represented pattern COId primary ES DAILY DRILLING REPORT WELLBORE CEMENT JOB CODE STRING CLASS RFCOCOInd DAILY DRILLING REPORT WELLBORE CEMENT JOB CLASS nnnnnnn DAILY DRILLING REPORT WELLBORE CEMENTING TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the class of tubular an actual ‘tubular section’. Role 1: The identifier for the actual ‘tubular section’, Role 2: The class code of the actual ‘tubular section’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet created by the expansion plug squeeze WELLBORE PRIMARY CEMENTING WELLBORE CEMENT JOB WELLBORE CEMENT SQUEEZING WELLBORE CEMENT PLUGGING ISO 15926-4 ACTIVITY DAILY DRILLING REPORT ACTIVITY CLASS HOLD In progress unknown

© Det Norske Veritas AS. All rights reserved. 14 January 2011 33. DDR Casing string diameter Nominal OD (in) COCOId DAILY DRILLING REPORT WELL COMPLETION STRING SIZE CODE ASSIGNMENT CLASS represented COIPO pattern COId PIPE API 5CT 11 3/4 11-3/4 ES DAILY DRILLING REPORT WELL COMPLETION STRING SIZE CODE STRING CLASS RF COCOInd DAILY DRILLING REPORT WELL COMPLETION STRING CLASS API 5CT PIPE ????? BIT ARTEFACT THREADED PIPE DAILY DRILLING REPORT WELL COMPLETION STRING SIZE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. Note the missing “-” API 5CT NOMINAL SIZE CODE ASSIGNMENT CLASS “OBJECT IN FOCUS” The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN API 5CT NOMINAL SIZE CODE STRING CLASS API 5CT NOMINAL SIZE PIPE CLASS Done. See 21. DDR Nominal OD (in)

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 34. DDR Comments Comments COCOD DAILY DRILLING REPORT WELLBORE CEMENT JOB COMMENT ASSIGNMENT CLASS represented pattern COId Blablablablablabla ES UNSPECIFIED STRING RFCOInd DAILY DRILLING REPORT WELLBORE CEMENT JOB COMMENT TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the class of tubular an actual ‘tubular section’. Role 1: The identifier for the actual ‘tubular section’, Role 2: The actual ext string’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN WELLBORE CEMENT JOB ISO 15926-4 ACTIVITY DAILY DRILLING REPORT WELLBORE CEMENT JOB COMMENT In progress. See also 20. DDR Description

© Det Norske Veritas AS. All rights reserved. 14 January 2011 (WELLBORE?) CEMENT SLURRY (WET CONCRETE) 38. Plug Bump Pressure (bars) Plug Bump Pressure (bars) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_space class_of_possessor PR PRESSURE RANGE p PRESSURE RANGE (RDS13115064) p MY (WELLBORE?) CEMENT SLURRY AI PR PLUG BUMP PRESSURE p bar AVERAGE P CEMENT SLURRY (WET CONCRETE) MY CEMENT ZONE WELLBORE SECTION BAR (RDS1314539) 1 2 PLUG BUMP PRESSURE – BAR TEMPLATE SIGNATURE CEMENT ZONE WELLBORE SECTION COFO This needs to have an identifier. What will the format be? DEFAULT AI COIP IP CEMENTING PLUG CEMENTING TOP PLUG CEMENTING BOTTOM PLUG CEMENT PLUG CEMENT SLURRY COIP

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 40. Pressure Release Date/Time Pressure Release Date/Time A ‘template input list’ that is the input required to state the end date/time of an actual ‘wellbore cementing sequence’. Role 1: The identifier for the actual ‘wellbore cementing sequence’. Role 2: The actual date/time for the end of the ’wellbore cementing sequence’ in the date/time format specified by the ‘date format’ class. Note: The SW shall …… The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN ISO 15926-4 INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF THING ISO 15926-4 THING ISO 15926-4 EXPRESS INFORMATION REPRESENTATION ISO 15926-4 REPRESENTATION OF GREGORIAN DATE AND UTC TIME ISO 15926-4 POINT IN TIME YYYY-MM-DD THH:MM UTC - YYYY-MM-DD THH:MM UTC YYYY-MM-DD THH:MM UTC POIT PEIT Figure 46 BE The wellbore cement job pressure releasing The start of the wellbore cement job pressure releasing AEV whole WELLBORE CEMENT JOB PRESSURE RELEASING END WELLBORE CEMENT JOB PRESSURE RELEASING START COE COTS class_of_predecessor WELLBORE CEMENT JOB PRESSURE RELEASING COMDO Figure 42 whole part wholepart whole part COIBEN “DATE FORMAT” COECOA 1 2 WELLBORE CEMENT JOB PRESSURE RELEASE DATE AND TIME

© Det Norske Veritas AS. All rights reserved. 14 January 2011 WELL TUBING ASSEMBLY WELL LINER ASSEMBLY Wellbore Model For “Cement” I WELL COMPLETION WELL COMPLETION STRING HANDLING COA COFO WELL CASING COFO COIPO WELL TUBING WELL COMPLETION ASSEMBLY COFO WELL LINER COIPO COFO WELL CONDUCTOR CASING WELL SURFACE CASING WELL INTERMEDIATE CASING WELL PRODUCTION CASING WELL CONDUCTOR CASING ASSEMBLY WELL SURFACE CASING ASSEMBLY WELL ASSEMBLY WELL PRODUCTION CASING ASSEMBLY WELL INTERMEDIATE CASING ASSEMBLY WELL TUBULAR COMPLETION?? WELLBORE ASSEMBLY ARTEFACT An artefact that is a wellbore completed with structures (casing, lining etc.). WELL CASING ASSEMBLY class_of_whole WELL PRODUCTION TUBING ASSEMBLY class_of_part class_of_whole class_of_part WELLBORE COMPLETED SECTION class_of_whole class_of_part CEMENT ZONE WELLBORE SECTION Focal point A wellbore section characterized by the cementing job (length, type of cement, etc.).

© Det Norske Veritas AS. All rights reserved. 14 January 2011 class_of_whole class_of_part Wellbore Model For “Cement” II WELLBORE ASSEMBLY ARTEFACT An artefact that is a wellbore completed with structures (casing, lining etc.). CEMENT ZONE WELLBORE SECTION WELL ASSEMBLY ISO 15926-4 ACTIVITY WELLBORE CEMENT JOB WELLBORE CEMENT SLURRY MIXING MIXING WELLBORE CEMENT SLURRY PUMPING WELLBORE CEMENT SLURRY DISPLACING …..STRING….. WELLBORE CEMENT SQUEEZING Cement squeeze Cement squeeze type WITSML Job type WITSML Type squeeze Secondary cement WITSML Cement job http://w3.energistics.org/schema/witsml_v1.3.1_data/XML_Examples/cementJob.xml ISO 15926-4 PARTICULATE MATERIAL ISO 15926-4 COMPOUND ARTEFACT CEMENT CEMENT SLURRY CURED CEMENT SLURRY WELLBORE COMPLETED SECTION PRIMARY WELLBORE CEMENT JOB class_of_wholeclass_of_part WELLBORE CEMENT SLURRY WELLBORE RETURNED CEMENT SLURRY WELLBORE INJECTED CEMENT SLURRY WELLBORE PUMPED CEMENT SLURRY SECONDARY WELLBORE CEMENT JOB Primary cement class_of_located class_of_locator INJECTED CEMENT SLURRY RETURNED CEMENT SLURRY PUMPED CEMENT SLURRY WELLBORE CEMENT CURING CEMENTING PLUG CEMENTING TOP PLUG CEMENTING BOTTOM PLUG CEMENT PLUG PORTLAND CEMENT

© Det Norske Veritas AS. All rights reserved. 14 January 2011 WELLBORE RETURNED CEMENT SLURRY 42. Cement Volume Returns (m3) Cement Volume Returns (m3) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_space class_of_possessor PR VOLUME RANGE vv.vv VOLUME RANGE (RDSxxxxxx) vv.vv MY RETURNED WELLBORE CEMENT SLURRY AI PR RETURNED WELLBORE CEMENT SLURRY VOLUME vv.Vv m3 AVERAGE P CEMENT SLURRY (WET CONCRETE) METRE CUBED (RDS1349099) 1 2 RETURNED WELLBORE CEMENT SLURRY VOLUME METRE CUBED TEMPLATE SIGNATURE COIPO DEFAULT COIP IP COIP

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 46. DDR Fluid Type Fluid Type COCOId DAILY DRILLING REPORT WELLBORE CEMENT JOB FLUID CODE ASSIGNMENT CLASS represented pattern COId Spacer ES DAILY DRILLING REPORT WELLBORE CEMENT JOB FLUID CODE STRING CLASS RFCOCOInd DAILY DRILLING REPORT WELLBORE CEMENT JOB FLUID CLASS nnnnnnn DAILY DRILLING REPORT WELLBORE CEMENTING JOB FLUID TYPE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the class of tubular an actual ‘tubular section’. Role 1: The identifier for the actual ‘tubular section’, Role 2: The class code of the actual ‘tubular section’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet created by the expansion Wash Mud WELLBORE SPACER FLUID CEMENT SLURRY WELLBORE MUD WELLBORE WASH FLUID FLUID COMPOUND DAILY DRILLING REPORT ACTIVITY CLASS HOLD In progress Cement Slurry Mud, Wash, Spacer, Cement Slurry

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 47. DDR Fluid Description Fluid Description COCOD DAILY DRILLING REPORT WELLBORE CEMENT SLURRY DESCRIPTION ASSIGNMENT CLASS represented pattern COId Blablablablablabla ES UNSPECIFIED STRING RFCOInd DAILY DRILLING REPORT WELLBORE CEMENT SLURRY DESCRIPTION TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the class of tubular an actual ‘tubular section’. Role 1: The identifier for the actual ‘tubular section’, Role 2: The actual ext string’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. The tubular An anonymous objet that represent the “object in focus” created by the expansion #NNNNN WELLBORE CEMENT SLURRY ISO 15926-4 COMPOUND DAILY DRILLING REPORT WELLBORE CEMENT SLURRY DESCRIPTION Or is this a description of the job? Ref xls

© Det Norske Veritas AS. All rights reserved. 14 January 2011 WELLBORE PUMPED CEMENT SLURRY 48. Vol pumped (m3) Vol pumped (m3) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_space class_of_possessor PR VOLUME RANGE vv.vv VOLUME RANGE (RDSxxxxxx) vv.vv MY WELLBORE PUMPED CEMENT SLURRY AI PR PUMPED WELLBORE CEMENT SLURRY VOLUME vv.Vv m3 AVERAGE P CEMENT SLURRY (WET CONCRETE) METRE CUBED (RDS1349099) 2 PUMPED WELLBORE CEMENT SLURRY VOLUME METRE CUBED TEMPLATE SIGNATURE COFO DEFAULT COIP IP COIP

© Det Norske Veritas AS. All rights reserved. 14 January 2011 WELLBORE PUMPED CEMENT SLURRY 49. DDR Density (sg) Density (sg) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_space class_of_possessor PR VOLUME RANGE vv.vv SPECIFIC GRAVITY RANGE (RDSxxxxxx) vv.vv MY WELLBORE PUMPED CEMENT SLURRY AI PR CEMENT SLURRY SPECIFIC GRAVITY vv.Vv m3 AVERAGE P CEMENT SLURRY 2 CEMENT SLURRY DENSITY XXXXXXX TEMPLATE SIGNATURE COFO COIP IP COIP FLUID COMPOUND Sg = specific gravity? NUMBER RANGE (RDSxxxxxx) FLUID COMPOUND LIQUID COMPOUND GASEOUS COMPOUND SLURRY OR SPECIFIC GRAVITY ISO 15926-4 COMPOUND RELATIVE DENSITY

© Det Norske Veritas AS. All rights reserved. 14 January 2011 MY WELLBORE CEMENT SLURRY 50. DDR Yield (ft3/sack) Yield (ft3/sack) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_space class_of_possessor VOLUME PER MASS RANGE (RDS1737937111) vv.vv AI PR CEMENT SLURRY YIELD (RDS1737939381) CEMENT SLURRY 2 CEMENT SLURRY YIELD - FOOT CUBED PER SACK (RDS1737960721) IP COIP FLUID COMPOUND SLURRY ISO 15926-4 PROPERTY RANGE (RDS16804340) ISO 15926-4 PARTICULATE MATERIAL CEMENT WELLBORE CEMENT SLURRY PORTLAND CEMENT SPD vv.vv ft3/sack P CEMENT SACK RANGE (RDSxxxxxx) MY CEMENT MY WATER VOLUME PER MASS FOOT CUBED PER SACK (RDS1737932991 ) ft3/sack ESS

© Det Norske Veritas AS. All rights reserved. 14 January 2011 MY WELLBORE CEMENT SLURRY 51. DDR Mix Water Ratio (gal/sack) Mix Water Ratio (gal/sack) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_space class_of_possessor VOLUME PER MASS RANGE (RDS1737937111) vv.vv AI PR CEMENT SLURRY WATER-CEMENT RATIO (RDS1737965801 ) CEMENT SLURRY 2 CEMENT SLURRY WATER CEMENT RATIO - GALLON PER SACK (RDS1737972341) IP COIP FLUID COMPOUND SLURRY ISO 15926-4 PARTICULATE MATERIAL CEMENT WELLBORE CEMENT SLURRY PORTLAND CEMENT SPD vv.vv ft3/sack P CEMENT SACK RANGE (RDSxxxxxx) MY CEMENT MY WATER VOLUME PER MASS PROPERTY RANGE (RDS16804340) GALLON PER SACK (RDS1737970621) gal/sack ESS

© Det Norske Veritas AS. All rights reserved. 14 January 2011 MY WELLBORE CEMENT SLURRY 52. DDR Free Water (%) Free Water (%) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_space class_of_possessor xxxxxxx (RDSxxxxxx) vv.vv AI PR xxxxxxx CEMENT SLURRY 2 CEMENT SLURRY WATER CEMENT RATIO GALLON PER SACK TEMPLATE SIGNATURE IP COIP FLUID COMPOUND SLURRY xxxxxx (RDSxxxxxx) ISO 15926-4 PARTICULATE MATERIAL CEMENT WELLBORE CEMENT SLURRY PORTLAND CEMENT SPD (% P CEMENT SACK RANGE (RDSxxxxxx) MY CEMENT MY WATER VOLUME PER MASS????? PROPERTY RANGE (RDS16804340)

© Det Norske Veritas AS. All rights reserved. 14 January 2011 MY WELLBORE CEMENT SLURRY XX. DDR Mix Water Ratio (gal/sack) A ‘template input list’ that is the input required to state the measured depth in metre from RKB to the top of a wellbore run section. Role 1: The identifier for the actual ‘wellbore run section’, Role 2: The value derived from the actual measurement. property_space class_of_possessor VOLUME PER MASS RANGE (RDSxxxxxx) vv.vv AI PR NOMINAL CEMENT SLURRY YIELD CEMENT 2 CEMENT SLURRY DENSITY XXXXXXX TEMPLATE SIGNATURE IP COIP FLUID COMPOUND SLURRY VOLUME PER MASS RANGE (RDSxxxxxx) ISO 15926-4 PARTICULATE MATERIAL CEMENT SLURRY WELLBORE CEMENT SLURRY PORTLAND CEMENT VOLUME PER MASS SPD vv.vv ft3/sack P CEMENT SACK RANGE (RDSxxxxxx) MY CEMENTMY WATER

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Copy of 10. DDR Hole Made (Run) (m) Hole Made (Run) (m) DDR HOLE MADE DURING BIT RUN IN METRE TEMPLATE SIGNATURE A ‘template input list’ that is the input required to state the nominal size of an actual ‘wellbore drill bit’. Role 1: The identifier for the actual ‘wellbore drill bit’, Role 2: The size code of the actual ‘wellbore drill bit’. The SW shall create the anonymous object and make it a subclass of the COIPO corresponding to the size code, and make the actual ‘wellbore drill bit’ a member of the anonymous class. property_spacepossessor PR LENGTH RANGE NNNN.NN m LENGTH RANGE (RDS16804453) NNNN.NN MY WELLBORE BIT RUN SECTION AI PR WELLBORTE BIT RUN SECTION LENGTH NNNN.NN m AVERAGE P WELLBORE REFERENCE DEVICE WELLBORE SECTION WELLBORE DRILLING SEQUENCE SECTION METRE (RDS1332674) 1 WELLBORE BIT RUN SECTION Done

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Casing, lining and tubing The wellbore drilled as the result of a drilling activity The drilling activity The start of the drilling activity The end of the drilling activity A E E YYYY-MM-DD THH:MM UTC - YYYY-MM-DD THH:MM UTC YYYY-MM-DD THH:MM UTC POIT PEIT Drilling activity #1Drilling activity #2Drilling activity #n S1S2SnE1E2En Stop #1Stop #n-1 WELLBORE BIT RUN There is no correlation between a reporting period and a bit run Bit run #n The drilled wellbore representation The start “point" of the wellbore The end “point" of the wellbore The end “point” representation participationwholepart AI WELLBORE SECTION START POINT WELLBORE SECTION END POINT WELLBORE SECTION GEOGRAPHICAL LOCATION END OF WELLBORE DRILLING SEQUENCE START OF WELLBORE DRILLING SEQUENCE “is represented by” COE COACOF START OF WELLBORE SECTION DRILLING PERIODE WELLBORE SECTION DRILLING PERIODE END OF WELLBORE SECTION DRILLING PERIODE The reporting period The start of the reporting period The end of the reporting period POIT START OF WELLBORE DRILLING REPORTING PERIODE WELLBORE DRILLING REPORTING PERIODE END OF WELLBORE DRILLING REPORTING PERIODE COCOBOCOI: class_of_cause_of_beginning_of_class_of_individual COCOEOCOI: class_of_cause_of_ending_of_class_of_individual COTS class_of_ predeces sor WELLBORE DRILLING WELLBORE DRILLING SEQUENCE VS. The ‘drilling’ of a ‘wellbore’. WELLBORE BIT RUN COI Figure 42 COI Figure 46 WELLBORE DRILLING WELLBORE DRILLING SEQUENCE The ‘activity’ of establishing’ a ‘wellbore’ including all supporting activities, i.e. ‘wellbore drilling’ including e.g. cementing etc. To be developed

© Det Norske Veritas AS. All rights reserved. 14 January 2011 IEV number ConceptDefinition 111-16-03time (1)one-dimensional mathematical space, which is a subspace of space-time and which is locally orthogonal to space 111-16-04eventsomething that happens in time (1) NOTE – In pure physics, an event is considered as a point in space-time. 111-16-07time axismathematical representation of the succession in time (1) of instantaneous events along a unique axis NOTE – According to the special relativity theory, the time axis depends on the choice of a spatial reference frame. 111-16-08instantpoint on the time axis NOTE – An instantaneous event occurs at a specific instant. 111-16-10time interval part of the time axis limited by two instants NOTE 1 – A time interval comprises all instants between the two limiting instants and, unless otherwise stated, the limiting instants themselves. NOTE 2 – A time interval can be specified by the dates marking the initial instant and final instant or by one of these dates and the duration of the time interval. 191-01-07instant of timea single point on a time scale NOTE – The time scale may be continuous as calendar time, or discrete e.g. number of use cycles. 191-01-09(time duration):The difference between the end points of a time interval 191-01-10accumulated time:The sum of time durations characterized by given conditions over a given time interval

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Point in time/Period in time Point in time (instant in time) Point in time Period in time (time interval) Period in time Period in time #1 (time interval #1) Period in time #2 (time interval #2) Period in time #n (time interval #n) Point in time

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Drilling activity, drilled wellbore & wellbore representation The wellbore drilled as the result of a wellbore drilling sequence The wellbore drilling sequence The start of the wellbore drilling sequence The end of the wellbore drilling sequence A EE YYYY-MM-DD THH:MM UTC - YYYY-MM-DD THH:MM UTC YYYY-MM-DD THH:MM UTC POIT PEIT Drilling activity #1Drilling activity #2Drilling activity #n S1S2SnE1E2En Stop #1Stop #n-1 There is no correlation between a reporting period and a bit run Bit run #n The drilled wellbore representation The start “point" of the wellbore drilling sequence The end “point" of the wellbore drilling sequence The end “point” representation participationwholepart AI WELLBORE DRILLING SEQUENCE SECTION START POINT WELLBORE DRILLING SEQUENCE SECTION END POINT WELLBORE DRILLING SEQUENCE SECTION GEOGRAPHICAL LOCATION WELLBORE DRILLING SEQUENCE END WELLBORE DRILLING SEQUENCE START “is represented by” COE COACOF COFO WELLBORE DRILLING SEQUENCE PERIOD START WELLBORE DRILLING SEQUENCE PERIOD WELLBORE DRILLING SEQUENCE PERIOD END The reporting period The start of the reporting period The end of the reporting period POIT WELLBORE DRILLING REPORTING PERIOD START WELLBORE DRILLING REPORTING PERIOD WELLBORE DRILLING REPORTING PERIOD END COCOBOCOI: class_of_cause_of_beginning_of_class_of_individual COCOEOCOI: class_of_cause_of_ending_of_class_of_individual COTS* class_of_ predeces sor WELLBORE DRILLING WELLBORE DRILLING SEQUENCE The ‘drilling’ of a ‘wellbore’; i.e. the period in time when the drill bit is actually drilling WELLBORE BIT RUN COI Figure 42 COI Figure 46 WELLBORE DRILLING SEQUENCE The ‘activity’ of establishing’ a ‘wellbore’ including all supporting activities, i.e. ‘wellbore drilling’ including e.g. cementing etc. WELLBORE REPORTING PERIOD DRILLING SEQUENCE VS. A ‘wellbore drilling sequence’ involving a particular ‘rock drill bit’ from the time the wellbore drilling starts until the bit has pulled. The ‘wellbore bit run’ is identified with the ‘rock drill bit’ identifier and a sequence number indicating how many times the drill bit has been used. DRILLING ISO 15926-4 ACTIVITY A ‘wellbore drilling sequence’ that takes place within a reporting period. WELLBORE CEMENTING CEMENT SECTION TOP whole part *: This relationship is too weak, but it is the only avaialble. Activity Period Wellbore section

© Det Norske Veritas AS. All rights reserved. 14 January 2011 REFERENCE LOCATION ISO 15926-4 FEATURE (RDS5924620) Measured Depth WELLBORE WELLBORE SECTION SHAPE CLASS BOREHOLE 14 3/4 NPS CYLINDER SHAPE 374,65X215 OR COF S S CYLINDER S ISO 15926-4 SHAPE CLASS ISO 15926-4 SHAPE DIMENSION CLASS ISO 15926-4 DIMENSION OF SHAPE CLASS COS CODFS COSD ISO 15926-4 PROPERTY SPACE INSTANCE ISO 15926-4 PROPERTY SPACE FOR SHAPE DIMENSION CLASS LENGTH LENGTH (DIMENSION) COSD PS SPD P ISO 15926-4 SHAPE DIMENSION SD ISO 15926-4 PROPERTY FOR SHAPE DIMENSION PFSD CODFS DOS Level 1? ? ISO 15926-4 PROPERTY (RDS1668879371) 1 LENGTH RANGE 215 MM DIAMETER RANGE 374,65 MM HEIGTH 130 MM DIAMETER CIRCUMFERENCE COSD 130 MM 145 MM 215 MM (1) (2) (3) (1)LENGTH is a PROPERTY SPACE for LENGTH (DIMENSION) (2)LENGTH is a PROPERTY SPACE for WIDTH (3)LENGTH is a PROPERTY SPACE for HEIGHT PSFCOSD DOS SD PFSD P P P “WELLBORE SECTION SHAPE HAS MEASURED DEPTH ” ISO 15926-4 RELATIONSHIP CLASS Sjekk mot typing i Part 4 ISO 15926-4 POSSIBLE INDIVIDUAL (RDS8645837) ISO 15926-4 PROPERTY (RDS1668879371) ISO 15926-4 POSSIBLE INDIVIDUAL (RDS8645837) OR ISO 15926-4 DIMENSION OF SHAPE Borehole # nnn WELLBORE SECTION WELLBORE SECTION 14 3/4 NPS COF Borehole section # nnn #m COF Borehole section # nnn #m end Borehole section # nnn #m start WELLBORE SECTION END SHAPE COFO SURFACE WELLBORE SECTION SURFACE ISO 15926-4 FUNCTIONAL OBJECT Borehole section # nnn #m end shape DEPTH WELLBORE SECTION REFERENC LOCATION CLASS ISO 15926-4 SHAPE (RDS1668872501) WELLBORE SECTION START WELLBORE SECTION END WELLBORE SECTION SURFACE

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Main classes and individuals WELLBORE DRILLING ROCK DRILL BIT THE ACTUAL WELLBORE WELL CASING STRING THE ACTUAL WELL CASING STRING LINING THE ACTUAL LINING WELL TUBING THE ACTUAL WELL TUBING DRILLING RIG THE ACTUAL RIG #NN CEMENT GROUT THE ACTUAL CEMENT GROUT WELLBORE CEMENTING WELLBORE (New entity type) THE ACTUAL REPORT REPORT THE ACTUAL WELLBORE CEMENTING THE ACTUAL ROCK DRILL BIT THE ACTUAL WELLBORE DRILL BIT RUN CEMENTING DRILLING CEMENTING EQUIPMENT CLASS ARTEFACT CLASS BOREHOLE (New entity type) HOLE DRILL BIT CASING ACTIVITY WELL CASING ACTIVITY THE ACTUAL WELL CASING ACTIVITY WELL CASING WELL CASING ASSEMBLY THE ACTUAL WELL CASING THE ACTUAL WELL CASING ASSEMBLY “LINING” is too general. Introduce “WELLBORE” where required? WELLBORE CEMENT GROUT REPORTING PERIOD WELLBORE DRILL BIT RUN

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Drilling activity & drill bit The ‘drill bit’ The drilling activity The start of the drilling activity The end of the drilling activity A EE YYYY-MM-DD THH:MM UTC - YYYY-MM-DD THH:MM UTC YYYY-MM-DD THH:MM UTC POIT PEIT Drilling activity #1Drilling activity #2Drilling activity #n S1S2SnE1E2En Stop #1Stop #n-1 WELLBORE BIT RUN There is no correlation between a reporting period and a bit run Bit run #n The start “point" of the wellbore The end “point" of the wellbore participationwholepart AI WELLBORE SECTION START POINT WELLBORE SECTION END POINT ROCK DRILL BIT END OF WELLBORE DRILLING SEQUENCE START OF WELLBORE DRILLING SEQUENCE COE COACOF START OF WELLBORE SECTION DRILLING PERIODE WELLBORE SECTION DRILLING PERIODE END OF WELLBORE SECTION DRILLING PERIODE COTS class_of_ predeces sor WELLBORE DRILLING SEQUENCE The ‘activity’ of ‘drilling’ a ‘wellbore’ including all supporting activities, e.g. cementing etc. COI Figure 42 COI Figure 46 AI whole part

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Drilling activity, drilled wellbore & drill bit qualification The wellbore drilled as the result of a drilling activity The reporting period drilling activity WELLBORE DRILLING WELLBORE (New entity type) START WELLBORE DRILLING END WELLBORE DRILLING The start of the drilling activity The end of the drilling activity A E The reporting period The start of the reporting period The end of the reporting period POIT PEIT REPORT PERIOD/DDR REPORTING PERIOD COE COA DDR REPORTING PERIOD START DDR REPORTING PERIOD END DDR REPORTING PERIOD COPOIT COPEIT WELLBORE BIT RUN WELLBORE DRILLING DDR REPORTING PERIOD WELLBORE SECTION BY WELLBORE DRILL BIT RUN WELLBORE SECTION BY DDR REPORTING PERIOD Drilling activity #1Drilling activity #2Drilling activity #n S1S2SnE1E2En Stop #1Stop #n-1 WELLBORE BIT RUN There is no correlation between a reporting period and a bit run Bit run #n The start “point" of the wellbore The end “point" of the wellbore participation wholepart AI

© Det Norske Veritas AS. All rights reserved. 14 January 2011  The model puts on some restrictions. - Relationships and classes of relationships have to have their ends defined - Most “properties” and “attributes” are relationships - We therefore need to put a taxonomy of “objects” in place before we can start to deal with “attributes” and “properties”  Data from previous projects - In principle all “properties” and “attributes” have been dealt with as “objects” - There were not sufficient resources and experience available at the time when much of the data was migrated from Snapshot E (which did not make this (necessary distinction) - Template methodology was not in place. Data that should have been templates were therefore put other places - Most of the data is well defined, it just needs a different home - Some inconsistent naming and scope across projects made it hard to get a grip on what was there from before so that all the data from the IIP, DDR, and DPR projects can be used together - But a substantial set of data is there and is well defined - Migration to other entity types is required in some areas. This has been done to the extent necessary.  A substantial effort has gone into making this consistent, and we now have a good staring point  Developing and extending the current well/wellbore model has been required in order to put a model for both objects and activities in place.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Pipe dimensions ARTEFACT ISO 15926-4 SHAPE (RDS1668872501) CIRCULAR HOLLOW PROFILE CLASS HOLLOW CYLINDER SHAPE CLASS CHS 168.3 X 14.27 CIRCULAR HOLLOW PROFILE FITS-INSIDE HOLLOW CYLINDER SHAPE CORL COIS S CYLINDER SHAPE S ISO 15926-4 SHAPE CLASS “IS REPRESENT ED BY” ISO 15926-4 SHAPE DIMENSION CLASS ISO 15926-4 DIMENSION OF SHAPE CLASS CO S CODFS COSD ISO 15926-4 PROPERTY SPACE INSTANCE ISO 15926-4 PROPERTY SPACE FOR SHAPE DIMENSION CLASS LENGTH NOMINAL OUTSIDE DIAMETER COSD PS SP D P ISO 15926-4 SHAPE DIMENSION SD ISO 15926-4 PROPERTY FOR SHAPE DIMENSION PFSD CODFS DOS Level 1? ? ISO 15926-4 PROPERTY (RDS1668879371) 1 NOMINAL OUTSIDE DIAMETER168,3MM NOMINAL INSIDE DIAMETER 139,76 MM NOMINAL WALL THICKNESS 14,27 MM NOMINAL INSIDE DIAMETER NOMINAL WALL THICKNESS COSD 14,27 MM 139,76 MM 168,3 MM (1) (2) (3) (1)LENGTH is a PROPERTY SPACE for NOMINAL OUTSIDE DIAMETER (2)LENGTH is a PROPERTY SPACE for NOMINAL INSIDE DIAMETER (3)LENGTH is a PROPERTY SPACE for NOMINAL WALL THICKNESS PSFCOSD DOS SD PFSD P P P “CYLINDER HAS NOMINAL OUTSIDE DIAMETER” ISO 15926-4 RELATIONSHIP CLASS Sjekk mot typing i Part 4 ISO 15926-4 POSSIBLE INDIVIDUAL (RDS8645837) ISO 15926-4 PROPERTY (RDS1668879371) ISO 15926-4 POSSIBLE INDIVIDUAL (RDS8645837) ISO 15926-4 RELATIVE LOCATION CORL #82 #81 #80 #83 #84 #85 #nn #89 #90 #91 #92#93 #94 ISO 15926-4 DIMENSION OF SHAPE #95 #96 #97 #98 #99 HOLLOW PROFILE #nn HOLLOW CYLINDER SHAPE 168.3X14.27MM

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Centre of Gravity ARTEFACT ARTEFACT CLASS DTM2-1А-15-16-ОM1,5 ALBATROS DTM2 FITS-INSIDE CORL COIPOS S “ALBATROS DTM2 FITS- INSIDE BOX 145X215X130” ISO 15926-4 POSSIBLE INDIVIDUAL (RDS8645837) ISO 15926-4 PROPERTY (RDS1668879371) ISO 15926-4 POSSIBLE INDIVIDUAL (RDS8645837) ISO 15926-4 RELATIVE LOCATION CORL S ALBATROS DTM2 COG CORWS CENTER OF GRAVITY FOR ALBATROS DTM2 CORWS CENTER OF GRAVITY REFERENCE BOX FOR ALBATROS DTM2 COI COIPO 75mm, 105mm, 45mm MDP CORWS CENTER OF GRAVITY POSITION COORDINATE SYSTEM DEFINED BY RECTANGULAR CUBOID 75, 105, 45 BOX SHAPE 145X215X130 COORDINATE SYSTEM CARTESIAN COORDINATE SYSTEM ISO 15926-4 COORDINATE SYSTEM MDNS R3 ISO 15926-4 MULTIDIMENSIONAL PROPERTY SPACE LENGTH, LENGTH, LENGTH MDPS xxxxxx ISO 15926-4 MULTIDIMENSIONAL NUMBER SPACE MDN RECTANGULAR CUBOID COORDINATE SYSTEM ISO 15926-4 SHAPE (RDS1668872501) BOX SHAPE (RECTANGULAR CUBOID) CORWS BOX SHAPE 145X215X130 MDNS MDPS Rectangular cuboid RECTANGULAR CUBOID a ‘cuboid’ in which each of the faces is a rectangle (and so each pair of adjacent faces meets in a right angle) ll angles are right angles, and opposite faces of a cuboid are equal. CUBOID a solid figure bounded by six faces, forming a convex polyhedron. that these six faces each be a quadrilateral. CUBE a ‘cuboid’ in which all six faces are squares COORDINATE SYSTEM DEFINED BY SHAPE

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Component materials ELECTRICAL TEMPERATURE TRANSMITTER TEMPERATURE ELEMENT (RDS445454) DTM2-1А-15-16- ОM1,5 ALBATROS DTM2 TRANSMITTER HOUSING (RDS735074) COAOI COAI TRANSMITTER ELECTRONIC MODULE (RDS428984) ISO 15926-4 POSSIBLE INDIVIDUAL (RDS8645837) TEMPERATURE TRANSMITTER Case of Transmitter ALBATROS DTM2 TRANSMITTER HOUSING ALBATROS DTM2 CONDUCTING ROPE SHEAT Shell of conducting rope ALBATROS DTM2 TEMPERATURE ELEMENT COAOI SEAL SPRING (RDS435554) ALBATROS DTM2 SEAL SPRING Sealing part between carrier sleeve and rib of connecting branch ALUMINUM ALLOY OBJECT COFWP FLUORINE ALLOY OBJECT COAOI METAL OBJECT (RDS881572911) ARTEFACT

© Det Norske Veritas AS. All rights reserved. 14 January 2011 “OBJECT IN FOCUS” 10 Mapping of “text attributes” IP-Class 1 9 RDS1387433181 RDS206324 RDS1400422601 RDS1007459 RDS476369941 RDS4755991513 ATEX group ATEX category Temperature class Gas-group Explosion protection COCOId IEC 60529 INGRESS PROTECTION CODE ASSIGNMENT CLASS 7 8 This approach is used for all cases where “validation tables” (EqHub terminology) or “standard options” are involved. NB! “Text” attribute is mapped to a specialisation relationship represented COIPO pattern COId 3 IP66 APPARATUS IEC 60529 2 ES IP66 2 ES 2 IP66 ES 2 5 IEC 60529 INGRESS PROTECTION CODE STRING CLASS RF COCOInd 6 IEC 60529 INGRESS PROTECTED APPARATUS CLASS IP6X PPARATUS IEC 60529 IPX6 APPARATUS IEC 60529 4 ARTEFACT INGRESS PROTECTED APPARATUS

© Det Norske Veritas AS. All rights reserved. 14 January 2011 EQUIPEDIA EQUIPMENT CLASS (xxxxxxxxxxxx) Basic “Proprietary Class” Structure EQUIPEDIA CLASS (xxxxxxxxxxxx) EQHUB CLASS (RDS1415791751) PROPRIETARY CLASS (RDS398603511) EQHUB SCALE CLASS (RDS1415794231) EQHUB INSTRUMENTATION CLASS (RDS1454482761) EQHUB CODE STRING CLASS (RDS1442437271) EQHUB CODE STRING ASSIGNMENT CLASS (RDS1442437971) COC COS COC EQUIPEDIA SCALE CLASS (xxxxxxxxxxxx) EQUIPEDIA ARTEFACT CLASS (xxxxxxxxxxxx) COS COCOID EQUIPEDIA DOCUMENT DEFINITION CLASS (xxxxxxxxxxxx) EQUIPEDIA EQUIPMENT DATA SHEET DEFINITION (xxxxxxxxxxxx) EQUIPEDIA FIELD INSTRUMENT DATA SHEET CLASS (xxxxxxxxxxxx) EQUIPEDIA FIELD INSTRUMENT CLASS (xxxxxxxxxxxx) EQUIPEDIA PRESSURE TRANSMITTER DATA SHEET DEFINITION (xxxxxxxxxxxx) ACTUATOR (RDS418769) COCORep EQUIPEDIA PRESSURE TRANSMITTER CLASS (xxxxxxxxxxxx) ACTUATOR (RDS418769) EQUIPEDIA INSTRUMENT SCALE CLASS (xxxxxxxxxxxx) DATA SHEET DEFINITION (RDS331334 ) EQUIPEDIA EQUIPMENT REPRESENTATION CLASS COCORep DD

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Drilling activity, drilled wellbore & drill bit qualification The drilled wellbore The wellbore drill bit ROCK DRILL BIT ACME INC. WIDGET ALPHA NS 13 3/4 NS ROCK DRILL BIT 13 3/4 NS 13 3/4 COID ACME INC. WIDGET ALPHA COID WELLBORE (New entity type) REPORT PERIOD/DDR REPORTING PERIOD WELLBORE SECTION BY WELLBORE DRILL BIT RUN WELLBORE SECTION BY DDR REPORTING PERIOD

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Representation of “Point Values” PRESSURE SPD classifier PROPERTY SPACE COIP INDIVIDUAL COIP FLUID CONTAINER NOMINAL PRESSURE RANGE NOMINAL OPERATING PRESSURE 25,5 BARG OR P P NOMINAL PRESSURE 24,4 BARG 26,6 BARG 25,5 BARG OR LBOPR UBOPR PR P P P classifier classified classifier classified FLUID CONTAINER ACME INC. CLASS A COIP NOMINAL PRESSURE RANGE 25,5 BARG RANGE 24,4 - 26,6 BARG NOMINAL PRESSURE RANGE 25,5 BARG

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Representation of “Point Values” 24,4 BARG 26,6 BARG 25,5 BARG NOMINAL PRESSURE OR LBOPR UBOPR PR P P P PRESSURE NOMINAL OPERATING PRESSURE P classifier classified classifier classified classifier classified PROPERTY SPACE PRESSURE RANGE 24,4 - 26,6 BARG COIP INDIVIDUAL COIP INDIVIDUAL

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Jan’s migration of point values from Snapshot E 24,4 BARG 26,6 BARG 25,5 BARG NOMINAL OPERATING PRESSURE LBOPR UBOPR COIP PR P P P PRESSURE NOMINAL OPERATING PRESSURE COIP SPD 25,5 BARG OR P classifier classified classifier classified classifier classified PROPERTY SPACE (24,4 - 26,6 BARG) NOMINAL OPERATING PRESSURE 25,5 BARG COIP INDIVIDUAL COIP x x x lower_bound_of_property_range Check definition vs. inheritance graph.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Jan’s migration of point values from Snapshot E 102 mm 98 mm 100 mm NOMINAL OPERATING PRESSURE LBOPR UBOPR ISO 15926-4 UPPER BOUND OF PROPERTY RANGE PR P P P LENGTH OR P classified classifier ISO 15926-4 PROPERTY SPACE LENGTH RANGE 100 mm COIP INDIVIDUAL COIP LENGTH RANGE COIP THERMOWELL THERMOWELL INSERTION LENGTH ITT XXX THERMOWELL COIP classifier classified ISO 15926-4 CLASS OF CLASSIFICATION ISO 15926-4 LOWER BOUND OF PROPERTY RANGE ISO 15926-4 CLASS OF CLASSIFICATION SPD PR LBOPR UBOPR COC ISO 15926-4 PROPERTY RANGE ISO 15926-4 SINGLE PROPERTY DIMENSION

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Nominal ranges I, Unspecified Upper/Lower Bound 100 kg NOMINAL OPERATING WEIGHT PR P WEIGHT OR classified ISO 15926-4 PROPERTY SPACE WEIGHT RANGE 100 KG COIP ISO 15926-4 INDIVIDUAL WEIGHT RANGE COIP DTM2-1А-15-16- ОM1,5 COIP classifier ISO 15926-4 CLASS OF CLASSIFICATION SPD PR AVERAGE (WEIGHT?) COC ISO 15926-4 PROPERTY RANGE ISO 15926-4 SINGLE PROPERTY DIMENSION ARTEFACT It might seem odd to restrict this property to artefact, but if associated higher up the hierarchy unexpected classes will have this property. Ref. Part 2 model. The definition will have to reflect this.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Nominal ranges II, Specified Upper/Lower Bound 102 kg 98 kg 100 kg NOMINAL OPERATING WEIGHT LBOPR UBOPR ISO 15926-4 UPPER BOUND OF PROPERTY RANGE PR P P P WEIGHT classified ISO 15926-4 PROPERTY SPACE WEIGHT RANGE 100 KG COIP ISO 15926-4 INDIVIDUAL WEIGHT RANGE COIP DTM2-1А-15-16- ОM1,5 COIP classifier classified ISO 15926-4 CLASS OF CLASSIFICATION ISO 15926-4 LOWER BOUND OF PROPERTY RANGE ISO 15926-4 CLASS OF CLASSIFICATION SPD PR LBOPR UBOPR COC ISO 15926-4 PROPERTY RANGE ISO 15926-4 SINGLE PROPERTY DIMENSION This range is a subclass of the generic where the ranges have not been restricted.

© Det Norske Veritas AS. All rights reserved. 14 January 2011 102 kg UBOPR ISO 15926-4 UPPER BOUND OF PROPERTY RANGE classified classifier ISO 15926-4 CLASS OF CLASSIFICATION UBOPR COC 98 kg LBOPR P classifierclassified ISO 15926-4 LOWER BOUND OF PROPERTY RANGE ISO 15926-4 CLASS OF CLASSIFICATION LBOPR Period of time 30 DAYS COPIT P P ISO 15926-4 PROPERTY SPACE COIP ISO 15926-4 INDIVIDUAL COIP JUNE COIP SPD PR This range is a subclass of the generic where the ranges have not been restricted. ISO 15926-4 PERIOD IN TIME COI COPIT PS DURATION WEIGHT 30 DAYS ISO 15926-4 SINGLE PROPERTY DIMENSION DURATION ARTEFACT PERIOD OF TIME ISO 15926-4 PROPERTY RANGE THE APPROPRIATE CLASS Service period Operating time between failures

© Det Norske Veritas AS. All rights reserved. 14 January 2011 Count COIP VALVE VALVE CLASS COUNT COCOI PR COIP COCOID INTEGER 5 COID NUMBER OF VALVE PORTS NS ARTEFACT CLASS COIP 5 PORT VALVE 5 COID COUNT COUNT = 5 PR My valve 5 Inconsistency Part 2/Part 3 on integer and real Inconsistency between Jan’s migration to RDS and Part 7, e.g. Figure 2 – Relation: Permitted Ambient Temperature

DDR Modelling Patterns Bit data, Casing/Liner/Tubing, and Cement.

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DDR Modelling Patterns Bit data, Casing/Liner/Tubing, and Cement.

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Presentation on theme: "DDR Modelling Patterns Bit data, Casing/Liner/Tubing, and Cement."— Presentation transcript:

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