1. 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.

2. Products Products for Directional Core Drilling /DCD/ Services
DeviDrill - Directional core barrels (US patented ).
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)

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. Directional boreholes applications
1. Multilateral boreholes Monobore boreholes

10. 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)

11. 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.

12. DCD Cost Saving
DCD calculator
Available at

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

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

15. DeviCaseTM Devi-Drill - Directional Drilling In Venezuela
Drilling Occurred from
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

16. 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 m
Target depths between m
Reduced coring by approx. 7000m
Target Success rate of 90%

17. DeviCaseTM Devi-Drill - Directional Drilling In Ontario
Drilling Occurred from
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%

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

19. 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
In Canada: (phone)
100m

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

21. – Manhattan New York.

22. 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

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

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

25. 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

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

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

28. 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

29. 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

30. 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 metres of actual directional drilling representing 102 directional holes as of December 2006

31. 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

32. 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

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

34. 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.

35. 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

36. 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

37. 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

38. 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.

39. 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.

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

41. 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.

42. 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 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

43. 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

44. 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

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

46. Operations at Shea Creek
Drill hole traces
Directional Drilling
Shea Creek

47. 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 3 4 4 4 9 8
190m
SHE
250m
SHE
SHE
SHE
Deviations from previous cuts
SHE
SHE
SHE
NOTE: Pilot hole is inclined for
display purposes only, the pilot hole
was drilled vertically.
SHE
SHE
SHE

48. 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!

49. Acknowledgements

50. BOOTH #
0321