Devico AS The company: Business segments: Company arena: Located in Melhus near Trondheim, Norway. Spin-off from SINTEF. Established in 1988. 30 employee. International offices: Canada, Bulgaria, Hong Kong. Business segments: Directional core drilling services. Borehole surveying tools sale and services. Company arena: More then 30 countries. Devico who we are. en eller to slides. En slide med Verdenskartet.

Products Products for Directional Core Drilling /DCD/ Services DeviDrill - Directional core barrels (US patented 6.516.900). DeviSoft - Software for DCD & SRV (planning, calculations and plotting). Products for Borehole surveying DeviTool - Magnetic survey tools. PeeWee – Miniature magnetic survey tool. DeviFlex - Non magnetic survey tool. DeviCore - Continuous core orientation system – CCO (New). Produktene: DD, DT, PW, DF,(nyhet) DC (Nyhet)

DeviDrillTM Wireline Technical Specification Hole : N-Size (76mm) Core : 31.5mm / 3m length Recommended dogleg = 9o/30m ( R=180m ) Max. dogleg = 12o/30m Onboard survey tool Measure while drilling (MWD) Requires no reaming out Bluetooth communication 3

DeviToolTM Standard Technical Specification Electronic Multishot System (EMS) Weight : 1.3 kg Diameter : 30mm / 1.18” Length = 830mm Battery Capacity : ~40,000 measures Internal Memory : 1,984 measures Temperature : -15 to 75oC (5 to 167oF) Pressure : Depends on Running Gear Azimuth Range : 0o-360o Inclination Range : 0o-180o Bluetooth communication Accuracy :- Inclination : 0.2o Azimuth : 1o Toolface (Gravity) : 0.2o Toolface (Magnetic) : 1o

DeviToolTM Peewee Technical Specification Electronic Multishot System (EMS) Weight : 2.4 kg / 5.29lb w/ batteries Diameter : 30mm / 1.18” Length = 975mm / 38.4” Battery Capacity : ~40,000 measures Internal Memory : 1,984 measures Temperature : -15 to 75oC (5 to 167oF) Pressure : 300bar / 4350psi Azimuth Range : 0o-360o Inclination Range : 0o-180o Bluetooth communication Accuracy :- Inclination : 0.2o Azimuth : 1o Toolface (Gravity) : 0.2o Toolface (Magnetic) : 1o

DeviFlexTM Non-Magnetic Technical Specification Electronic Multishot System (EMS) Weight : 20kg Diameter : 40mm Length = 4m Battery Capacity : 3-4months (continues) Internal Memory : 1,984 measures Temperature : -15 to 75oC (5 to 167oF) Pressure : 300bar / 4350psi Inclination Range : 0o-180o Bluetooth communication Accuracy :- Inclination : 0.2o Azimuth : 0.01o/station Toolface (Gravity) : 0.2o

DeviDipTM Technical Specification Electronic Multishot System (EMS) Weight : 0.7kg Diameter : 30mm / 1.18” Length = 495mm Battery Capacity : ~40,000 measures Internal Memory : 1,984 measures Temperature : -15 to 75oC (5 to 167oF) Pressure : Depends on Running Gear Inclination Range : 0o-180o Bluetooth communication Accuracy :- Inclination : 0.2o Toolface (Gravity) : 0.2o

DeviCoreTM Technical Specification Continues Core Orientation (CCO) Survey borehole inclination Single core orientation Fits in NQ drilling system Battery Capacity : ~40,000 measures Internal Memory : 1,984 measures Temperature : -15 to 75oC (5 to 167oF) Inclination Range : 0o-180o Bluetooth communication Accuracy :- Inclination : 0.2o Toolface (Gravity) : 0.2o

Directional boreholes applications 1. Multilateral boreholes 2. Monobore boreholes

Multilateral Borehole Planning Borehole design example (Boliden Kristineberg Mine Sweden) Devico who we are. en eller to slides. Produktene: DD, DT, PW, DF,(nyhet) DC (Nyhet) DD- What it can do. Show Examples like Boliden (Multiple sidetracks, Mexico ( avoid access tunnel) 1 el.2 slides. Costsaving with multiple sidtrack, show costsaving calculator and fill in numbers from Boliden. Short conclusion. ( savings) Surveytools DEviFlex (Nyhet) (What it can do and what’s the advantage and why we developed the DF. Technical prinsipal, straingage, accelerometers bl bla. ( 1 slides) Calibration procedures, technical spec. (Accepted verified /godkjent av Sintef) Can we trust the results Test run Verification by Sintef. Testhole results, calibration data/procedures. 1 el 2 slides Results from field jobs: Malmberget, KRistineberg, Brasil (gyro), Canada, Experience so far: OPeration procedures, depth interval, how close to vertical, orientaded rods in start vertical section, Short Conlusion ( 1 slide) DeviCore (Nyhet) Continues core orientation. The only system that give continues oreientation of the core and at the same time gives inclination. ( BRing the unit itself and show it to the audience) + slide Prinsipal Coreliftercase with 3 markers( Figure) 1 -2 slides Handterminal show screen with graph. Short conlusion ( 1 slide)

DCD Cost Saving cont. Devico technology comparison with other methods Parm/Tech Devico Wedges M-Motor RE-Drill 20 deg. Deviation require FTG, meter 86 m 120 m 800 m Build up rate, 0/30m 7,0 deg/30m 1,5 per wedge 7,0 deg/30 Daily production, m/day 7,0 m 1 opr./2day 3 m 25 Time required, days TIME SAVING 13 days 19 DAYS 35 days + 3 DAYS 29 days 3 DAYS 32 days Target hit probability, % 95 % 70 % 50 % COST SAVING comp. to redrilling in % 74% 21% 40.7 % 0% 74% ** Cost per month.

DCD Cost Saving DCD calculator Available at www.devico.no

DeviFlex in a 100 m steel pipe with know exit coordinates. Horizontal Accuracy: +/- 0.16 m at 100 m  1.6 m at 1000 m Vertical accuracy: +/- 0.07 m at 100 m  0.7 m at 1000 m The test have been observed, controlled and verified by Sintef

DeviFlex survey in Kristineberg 3 run within 3 meter at 822 meters depth. 50 m Depth 822 m

DeviCaseTM Devi-Drill - Directional Drilling In Venezuela Drilling Occurred from 2003-2005 Completed 18 targets and approx 12,500 meters of drilling in First Phase 7500 meters of drilling and 11 targets were achieved in the second phase All new branches were created by steel by-pass wedges Reduced the program by approx. 10,000 meters Average success rate of nearly 90% Cost and time saving

DeviCaseTM Devi-Drill - Directional Drilling in Newfoundland Drilling Since Sept. 05 10 Targets have been completed to date New branches were created with steel wedges due to cement issues Wedges placed between 600-700m Target depths between 950-1100m Reduced coring by approx. 7000m Target Success rate of 90%

DeviCaseTM Devi-Drill - Directional Drilling In Ontario Drilling Occurred from 2001-2002 15 Target Program New Branches were formed using steel by-pass wedges and by cutting off in areas of greater then 7 degree dog-legs using a stabilized core barrel assembly Approx. 11,000 meters of drilling The work was performed on seven hour double shift Average success rate of nearly 90%

Customers comments. Rupert Goldcorp Resources’ Red Lake, Ontario - Canada

North East view of drilling operations. Grid (100m between lines) One drill hole can easily cover 10,000m2 Contact Information for the case study: John Robbins P. Eng. Project Geologist AREVA Resources Canada E-mail: John.Robbins@areva.ca In Canada:1-306-244-2554 (phone) 100m

DeviCase – South-Africa Horisontal coal inseam drilling Boreholes up to 1500m Mapping of fault dislocations in the deposit Totally 170.000m since 1994

– Manhattan New York.

Shinkansen Japan Tunnel for Shinkansen high speed train Length 500 meter Deviation 20 degrees Date: Nov-Des. 2002 Operator Nikko Exploration Devico has performed a number of project throughout the world. MWRA Tunnel Project, Boston US. Gas Storage Project in Japan. Nuclear power Plant Project in Taiwan. Horizontal Coal Drilling, S. Africa. Subsea Tunnels in Norway. Mining exploration in Norwy, Canada, South Africa, Botswanna, Sweden, Brasil, Mexico. Directional Water well drilling in Spain

DeviCaseTM Geotechnical project. Subsea tunnel Bømlafjord in Norway - 930 m. Reduced risk. Improved QA Resulted in redesigned tunnel allignment.

DeviCaseTM – Jurong Island, Singapore Investigation of underground oil storage in sedimentary formation. 6 borehole 4-600 m 30 Deg to horizontal

DeviCaseTM – Boston - USA . DeviCaseTM – Boston - USA Metrowest water tunnell. Length 700 meter. Reduced risk and better bids 2.5% spred in the bids. Normally 30% spred in the bidding Devico has performed a number of project throughout the world. MWRA Tunnel Project, Boston US. Gas Storage Project in Japan. Nuclear power Plant Project in Taiwan. Horizontal Coal Drilling, S. Africa. Subsea Tunnels in Norway. Mining exploration in Norwy, Canada, South Africa, Botswanna, Sweden, Brasil, Mexico. Directional Water well drilling in Spain

DeviCaseTM – Po Shan Road, Hong Kong Two Boreholes. HDD1 - 243 m HDD2 - 311 m Duration 33 days. Directional meterage – 264 meter Average production rate 7,42 m per 8 hour shift. Drilling operator Intrafor

DeviCaseTM – Eagle’s Nest Tunnel Two horizontal boreholes. HDD1 – 1152 m (record) HDD2 - 550 m Duration - 87 days. Directional metarage - 443 m Average production rate – 6,5 m/shift. Drilling operator Intrafor.

Continual Advancements in Drilling Techniques DIRECTIONAL DRILLING Continual Advancements in Drilling Techniques SHEA CREEK Project Saskatchewan, Canada John Robbins P. Eng. Senior Project Geologist AREVA Resources Canada

Agenda Introduction Who am I and why am I talking to you? DeviDrill Cover some of the basics Operations at Shea Creek, Saskatchewan, Canada Why do we use DeviDrill? How we use it? Drill hole traces Issues to consider Acknowledgments

Introduction Started and continuously use directional drilling since 1999 1999 to 2004 Variety of mud motors from different companies 2004 to present DeviDrill from Devico Completed more than 3 800 metres of actual directional drilling representing 102 directional holes as of December 2006

DeviDrill How it works (simplified version) Directional core barrel attached to drill string Rotate the core barrel in the direction you want to go Correct for azimuth, dip or both Inflate an onboard packer to hold the core barrel in place for the change in hole path Drill as normal within the specifications of the DeviDrill Core is obtained using a wire-line system

DeviDrill Mule shoe system Steering the core barrel Mule shoe system used to determine the “Roll” of the core barrel. “Roll” explained as the deflection of the core barrel (0-360o) in relation to the azimuth of the hole Tests (azimuth and dip) ahead of the bit can be performed at anytime while the DeviDrill is still in the hole using a survey instrument. Devico provides all survey tools and adaptable third party tools can be used Mule shoe system

Operations at Shea Creek CANADA Saskatchewan Athabasca Basin Thelon Basin SHEA CREEK PROJECT

Operations at Shea Creek Why do we use DeviDrill? Have to look at our mud motor operations in the past AREVA Resources with the help of Boart Longyear pioneered directional drilling in the Athabasca Basin.

Operations at Shea Creek Why do we use DeviDrill? Less equipment and water on site No extra pumps, mixing tanks and rods (normally reduce one rod size smaller when using a mud motor) The DeviDrill does not require extra equipment or water Rods Mixing Tanks Pump

Operations at Shea Creek Why do we use DeviDrill? No hassles with bit configurations to control the amount of water at the bit face. The DeviDrill uses a coring bit similar to normal drilling operations. EXTRA HOLES ADDED UNPLUGGED HOLES PLUGGED HOLES

Operations at Shea Creek Why do we use DeviDrill? Reaming shells are not standard equipment on mud motors. Reaming directional cuts increases the cost per metre. Successful prototypes where introduced at our operations. Reaming shell is standard equipment with DeviDrill. Prototype reaming shell for mud motor

Operations at Shea Creek Why do we use DeviDrill? Survey ahead of the bit. To know where you are in a directional cut is crucial to positioning a hole towards a target. Any mud motor system relies on surveys (real time, multi or single shot) 9 to 12 metres behind the bit within a non-magnetic portion of the drill string. An estimate has to be made to determine the hole orientation at the bit or the motor has to be pull out of the hole and replaced by the core barrel to perform a survey. Devico provides a miniature survey tool (single or multi-shot) that can through the DeviDrill bit.

Operations at Shea Creek Why do we use DeviDrill? (the main reason) Cost savings 2006 drilling compaign, 19 directional cuts with the DeviDrill from three pilot holes Average savings of 62% using the DeviDrill instead of re-starts from surface. Maximum savings per cut was 87% Minimum savings per cut was 50% Included in DeviDrill costs are hourly rate for drilling, rental of DeviDrill and survey equipment and all chargeable equipment including wedges, bits, drilling muds and equipment repair.

Operations at Shea Creek Comparison of Directional Drilling versus Restarting from Surface DeviDrill costs Estimated coring costs

Operations at Shea Creek How we use it? Possibly a unique situation at Shea Creek A trained designates perform all the pre-planning; decide when to put or pull the DeviDrill from the drill hole and determine the direction to steer the core barrel. The drill contractor (Boart Longyear) performs all down hole operations with the DeviDrill, schedule maintenance and repairs.

Operations at Shea Creek How we use it? Targets are planned between 650 metres and 850 metres below surface. Distance or step-outs away from the pilot hole (vertical) varies between 20 metres and 100 metres. A wedge is placed in the hole to start the cut and directional drilling occurs thereafter. Rate of drilling is similar to normal coring. Between 500-600 metre depth, 9 to 12 metres in a 12 hour shift. Time for setting the core barrel and taking tests consume time. Test taken every 3 metres, 6 metres maximum

Operations at Shea Creek How we use it? Maximum rates of curvature performed (not recommended) 1o per metre when drilling with hole direction (flattening or steeping a hole) 10o per metre when drilling perpendicular to hole direction (correcting for azimuth) Dogleg 12 degree/ 30 meter ) Normal rate of curvature performed at Shea Creek 1o per 3 metres when drilling with hole direction 10o per 3 metres when drilling perpendicular to hole direction Dogleg 9 degree/ 30 meter

Operations at Shea Creek How we use it? Rock type being drilled is Proterozoic sandstones Laymen terms - silicified or “hard” sandstone Series 7 and 8 drill bits (Boart Longyear) are used for coring

Operations at Shea Creek Drill hole traces Directional cuts Pilot Holes Foot print of Zone 2 McArthur River 100m

Operations at Shea Creek Drill hole traces Directional Drilling Shea Creek

Operations at Shea Creek 3-D Rendering of SHE -102 1 to 11 Plan View of SHE-102 1 to 11 Drill hole traces SHE -102 Pilot Hole 10 5 11 2 4 6 pilot hole 1 7 SHE -102-5 3 4 4 4 9 8 190m SHE -102-11 250m SHE -102-4 SHE -102-10 SHE -102-2 Deviations from previous cuts SHE -102-6 SHE -102-3 SHE -102-7 NOTE: Pilot hole is inclined for display purposes only, the pilot hole was drilled vertically. SHE -102-1 SHE -102-9 SHE -102-8

Operations at Shea Creek Issues to consider Target objectives What do you want to achieve? Is it feasible to use? Depth is not the only factor to consider. Directional drilling has a learning curve Experience is required, where do you get it? Devico or “Licensed Users” of Devico Reputable drilling contactors with experience Geotechnical properties good ground conditions are required fabric orientations have to be considered Be committed and ready Directional drilling requires input from all parties involved, “The clock is ticking when you start and money is being spent”. Maybe challenge a myth or two RODS DO BEND!

Acknowledgements

BOOTH # 0321