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Advanced Drilling Systems for EGSMay 2010
NovaTek
Stinger DiamondLoad
Penetrates
1st System Technology: Stinger PDCRevolutionary Cutter• Ultra thick diamond• Innovative conical geometry
Value Proposition• 10X impact strength of conventional PDC enabling
cutter to drill through hard formations• 11X abrasion resistance/wear life of conventional
PDC resulting in longer bit life and less tripping• Cutter versatility enables a multi-formation
bit, drastically reducing bit models and inventory• Presents new mode of cutting the formation that
results in more course/larger cuttings—represents more efficient drilling
• Maintains sharper cutting structure much longer than conventional shear PDC resulting in lower ongoing bit forces while drilling
Milestones Achieved• Performance proven in construction & mining
industry for over 2 years, achieving 30X+ the wear life over conventional tungsten carbide elements
• Multiple TerraTek tests with JackStinger bits drilling under pressurized conditions across multiple formation types successfully completed
• Multiple lab tests successfully completed proving out impact and wear characteristics
Comparison Test – Wear Progression (10 pass increments)
(50 passes @ .050“ in Sierra white granite)
VTL Test Results Comparing Shear & Stinger PDC
0
10,000
20,000
30,000
40,000
50,000
60,000
4,5826,765
52,189
57,429
Linear Distance Traveled (Feet) Before Failure
Unleached Shear Cutter
Shallow Leached
Shear Cutter
Unleached Stinger Cutter
Leached Stinger Cutter
Impact Test Comparison Fa
ilure
Ene
rgy
(J)
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
442RT Straight Impact
(D1128)
442RT Straight Impact
(D1129)
442RT Straight Impact
(D1130)
442RT Straight Impact
(D1131)
442RT Straight Impact
(D1132)
504RT Straight Impact
(D1133)
504RT Straight Impact
(D1134)
504RT Straight Impact
(D1135)
504RT Straight Impact
(D1136)
504RT Straight Impact
(D1137)
562 Stinger Straight Impact
(D1138)
562 Stinger Straight Impact
(D1140)
562 Stinger Straight Impact
(D1141)
562 Stinger Straight Impact
(D1142)
562 Stinger Straight Impact
(D1143)
1218 18 18
2514 18
3020 16
240
220
240
180
200
Drilling Simulation Performance – Sandstone Comparison 5000 psi Confining Pressure
Shear PDC bit at 7740 ft,ROP was ~22 ft /hr
Stinger bit at 7840 ft,ROP was ~23 ft /hr
Stinger bit at 7880 ft,ROP was ~20 ft /hr
PDC Shear bit
Stinger JackBit
JB 8202 Field TestWard County, TX
March 2010
1
3
2
5
4
7
6
9
8
10
2
0
0
JackBit 12.01 Dull Bit Analysis•Ring-out on Stinger 9•Possible junk damage•Possible thermal degradation (brazing)•Overexposed stingers (not seated)
Excessive wear for interior Stingers in 60 ft of drilling (~23 passes on VTL)
Apparent re-melting + peeling failure of high temperature Braze-Bond
Uncharacteristically rough PCD fracture surface
106
10
5
Stinger Bit Dull Report
2nd System Technology: JackHammerElegant Hammering Device• Flow activated hammering mass• Very short sub connected to any modified bit• Hammering mass hits Jack element protruding
from middle of bit
Value Proposition• Jack un-confines formation at borehole center
causing formation failure• Substantial increase in ROP• Small sub can connect to almost any modified bit• Relatively small hammering mass operating at
optimized frequency has diminished effect on other BHA tools
Milestones Achieved & Current Status• Generation #3 prototype built and tested• 30%+ ROP increase achieved while drilling in
cement caissons• Generation #4 tool currently under development• High pressure testing to occur Q4 2009• Field testing in 2010
Oil Reservoir
Turbine
Hammer Mass
Rotating Diverter
Indenter
Rotary Seals
3rd System Technology: JackSteering RSTHigh Performance Rotary Steering Tool• Revolutionary rotary steering tool that uses ‘lead-
the-bit’ technology• Both Intelliserve and mud-pulse compatible
Value Proposition• Shorter length increases proximity of LWD tools to
the drill bit• More cost effective to build; Reduces repair and
maintenance costs• Customised low cost solution can replace
conventional mud-motor / bent-sub based drilling on US land and other onshore locations
Milestones Achieved & Current Status• JackSteering concept proven to achieve industry
standard build rates• Motor driven prototype built and tested successfully• Turbine driven prototype built and tested successfully
achieving 7.5 degree build per 100ft.• Field tests planned for Q3 2010
Variable vanes direct flow into turbine
Turbine speed controls dagger rotation relative to tool collar
Dagger orientation controlled by D&I feedback control loop
Turbine directly drives the profiled dagger via gearbox
Novatek Flow Test Facility
Horizontal Drill Test Facility