1. Speaker Introduction John Shields Software Projects Manager, Baker Hughes, Aberdeen 30 years working for Baker Hughes 30 years working for Baker Hughes Initially worked in field operations in S.E. Asia, North Sea and U.S.A. Initially worked in field operations in S.E. Asia, North Sea and U.S.A. Since 1980 has been involved in software systems development in U.S. and U.K. Since 1980 has been involved in software systems development in U.S. and U.K. Responsible for development of Baker Hughes data acquisition and analysis systems Responsible for development of Baker Hughes data acquisition and analysis systems Worked with Statoil in Norway in 1999 which led to the formation of the WITSML working group Worked with Statoil in Norway in 1999 which led to the formation of the WITSML working group Currently responsible for development of web based drilling information systems and Baker Hughes participation in WITSML Currently responsible for development of web based drilling information systems and Baker Hughes participation in WITSML

2. WITSML XML Based Drilling Information Exchange Project Overview and Update John Shields Baker Hughes Aberdeen

3. The Drilling Environment Directional & Horizontal Drilling Systems Fluids Systems Surface Logging Logging While Drilling Coring Surveying Drilling Data Providers Rig Instrumentation

4. WITSML Evolution Many different service companies monitoring the same well with incompatible software and hardware platforms Many different service companies monitoring the same well with incompatible software and hardware platforms WITS in the 1980s WITS in the 1980s Used by Amoco, Chevron, Mobil to drive data centresUsed by Amoco, Chevron, Mobil to drive data centres Point to point serial data transferPoint to point serial data transfer Binary and ASCII data formatsBinary and ASCII data formats Incomplete data set and out of date by late 1990sIncomplete data set and out of date by late 1990s WITSML in 2000 WITSML in 2000 Evolved from Statoil DART project (Java/CORBA)Evolved from Statoil DART project (Java/CORBA) Discussions with BP & Statoil, Baker Hughes, Halliburton & Schlumberger led to WITSMLDiscussions with BP & Statoil, Baker Hughes, Halliburton & Schlumberger led to WITSML

5. WITSML Charter The “right time” seamless flow of well site data between operators and service companies to speed and enhance decision-making. The “right time” seamless flow of well site data between operators and service companies to speed and enhance decision-making. Sponsors Sponsors BP & StatoilBP & Statoil Participants Participants Baker Hughes, Halliburton, Schlumberger, NPSiBaker Hughes, Halliburton, Schlumberger, NPSi Organisation Organisation Steering Board Steering Board Technical Team Technical Team

6. WITSML Implementation Provides both a Data Model and an Access API Provides both a Data Model and an Access API Web Based & W3C Standards Web Based & W3C Standards Platform & language independentPlatform & language independent XML data formats XML data formats Human and application readableHuman and application readable Objects defined in XSD SchemaObjects defined in XSD Schema SOAP for Web Services SOAP for Web Services WSDL Defines data access servicesWSDL Defines data access services Already used in other e-BusinessesAlready used in other e-Businesses

7. WITSML Data Objects Well Well Wellbore Wellbore Rig Rig Location Location Trajectory Trajectory Target Target Survey Program Survey Program Bit Record Bit Record BHA Run BHA Run Tubular Tubular Wellbore Geometry Wellbore Geometry Operations Report Operations Report Fluids Report Fluids Report Cement Job Cement Job Formation Marker Formation Marker Core Core Sidewall Core Sidewall Core Log Log Well Log Well Log Realtime Realtime Mudlog Mudlog Message Message Risk Risk Capabilities Capabilities

8. WITSML API SOAP Interfaces defined in WSDL SOAP Interfaces defined in WSDL Store Interface Store Interface GetFromStore()GetFromStore() AddToStore()AddToStore() UpdateInStore()UpdateInStore() DeleteFromStore()DeleteFromStore() Publish/Subscribe Interface Publish/Subscribe Interface Subscribe()Subscribe() Both Interfaces Both Interfaces GetVersion()GetVersion() GetCapability()GetCapability()

9. WITSML Progress WITSML v1.1 Commercial Services in 2002/2003 WITSML v1.1 Commercial Services in 2002/2003 Limited to core set of WITSML objectsLimited to core set of WITSML objects Small number of participating companiesSmall number of participating companies SPE Paper 840662 SPE Paper 840662 Presented in Denver, October 2003Presented in Denver, October 2003 POSC custodianship in 2003 POSC custodianship in 2003 WITSML v1.2 Commercial Services in 2004 WITSML v1.2 Commercial Services in 2004 Additional WITSML objects supportedAdditional WITSML objects supported Other software vendors involved, new products introducedOther software vendors involved, new products introduced Government agencies and standards bodies joined WITSML SIG in 2004 Government agencies and standards bodies joined WITSML SIG in 2004

10. WITSML Special Interest Group

11. WITSML SIG 8 Oil companies 8 Oil companies 18 Service companies 18 Service companies 4 Government agencies/standards bodies 4 Government agencies/standards bodies Steering Board Steering Board Regular conference callsRegular conference calls Use Case Group Use Case Group Defines new requirementsDefines new requirements Meetings at WITSML seminarsMeetings at WITSML seminars Technical Team Technical Team Monthly conference callsMonthly conference calls Meetings at WITSML seminarsMeetings at WITSML seminars

12. Recent Developments 5th Public Seminar and SIG Working Meetings Held in Paris in November 2004 5th Public Seminar and SIG Working Meetings Held in Paris in November 2004 Version 1.3 Published for review Jan 2005 Version 1.3 Published for review Jan 2005 Improved well location informationImproved well location information New Well Log & Risk objectsNew Well Log & Risk objects More robust and extensible schemasMore robust and extensible schemas Units validation via schemaUnits validation via schema Separation of Core and Data schemasSeparation of Core and Data schemas Server Profile definitionsServer Profile definitions

13. Future Plans 6th Public Seminar and SIG Working Meetings in Houston May 2005 6th Public Seminar and SIG Working Meetings in Houston May 2005 Use Case Team Plans Use Case Team Plans Daily Drilling Reporting: led by BP, ChevronTexaco, and HydroDaily Drilling Reporting: led by BP, ChevronTexaco, and Hydro Completions and Well Mechanical Descriptions: BP, Statoil, ChevronTexaco, Paradigm, ExxonMobil, Hydro, and IFPCompletions and Well Mechanical Descriptions: BP, Statoil, ChevronTexaco, Paradigm, ExxonMobil, Hydro, and IFP Other topics under consideration:Other topics under consideration: HSE data reporting HSE data reporting Distributed Temperature Survey initiative Distributed Temperature Survey initiative Integration of Well Path and Well Log Data Transfer Standards Integration of Well Path and Well Log Data Transfer Standards POSC Product Certification Program in Early '05 POSC Product Certification Program in Early '05

14. Questions? John Shields Software Projects Manager Baker Hughes Building Stoneywood Park North Aberdeen AB21 7EA Tel: 01224 721753 E-mail: john.shields@bakerhughes.com http://www.witsml.org/