1. 2010 International Perforating Symposium
Presentation IPS
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2. StimGun KODIAK Enhanced Perforating System
Initial Concept
Technical Challenges
Progress
HTH Technical Services, Inc.
Joe Haney
Owen Oil Tools (CoreLab)
Dan Pratt, Chris Montanez, Mike Miller
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3. The Beginning 1992 – David Cuthill and Bob Haney 2007 – HTH and Owen
Combine perforating with propellant stimulation
Surface Test - propellant inside gun
Problem with propellant
2007 – HTH and Owen
Start development of a new type of propellant
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4. Initial Concept
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5. Quick and Simple Perforation Breakdown
PERFORATING CHARGES
KODIAK Enhanced Perforating System PELLET
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6. Why?
Initially, the thought was to enhance the perforating process when you can’t run the StimGun Assembly™
Wells with minimal fluid column (< 500 ft)
Wells with complex or difficult casing or tubing configurations
Very short intervals
Limited Entry
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7. Enhanced Perforating?
Change in focus - from charge penetration to flow
Formation breakdown
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8. Quick and Simple Perforation Breakdown
Technical Challenges
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9. Propellant Rapid, but controlled, burn rate
Reduced sensitivity of burn rate to pressure
Extremely low sensitively to shock, friction, impact, and static electricity
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10. Gun Integrity
For standard and non-standard operating conditions – zero potential for failure needed
Gun expansion – within set limits
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11. Adequate Rate of Venting of Gases
We need a high pressure pulse in the perforation tunnel
We have to go through two “chokes”
Both the perforation exit hole in the gun and the in the casing are of critical importance
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12. Propellant Development
Five different propellant / energetic materials selected for evaluation
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13. Testing, Testing, Testing
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14. Testing, Testing, Testing
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15. Surface Tests
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16. IPS

17. Internal Gun Pressure Data
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18. Gun Integrity All systems “dry” tested All systems “fluid” rated
Over 100 tests
No problems
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19. Venting
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20. Multiple new charge and scallop designs evaluated
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21. Product Development Review
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22. Propellant Requires high order detonation to fully ignite
Requires minimum charge gram weight to disk thickness to fully ignite
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23. Gun Integrity
No problems – for the “system”
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24. Venting
The current system with specially designed charges, it is adequate
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25. Final Design Configuration
Balance Between
Venting Capacity
Burst Pressure of Gun
Burn Rate
Propellant Volume
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26. KODIAK Enhanced Perforating System Surface Test
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27. Quick and Simple Perforation Breakdown
Progress
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28. Downhole Testing
Wyoming
Montana
Texas
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29. MOC Gov’t 4
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30. Does Kodiak work? Yes Rapid rise time High Pressure 5 ms pulse
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31. Montana Tests 6’ x 3 3/8” x 4 spf x 60 deg guns Shallow gas 5½” casing
1700’ depth
50’ to 200’ tamp fluid
Four runs (2 wells)
No operational problems
Gun expansion OK
No wireline damage
No packer problems (all zones – packer was close)
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32. IPS

33. IPS

34. On to Commercial Testing
Texas
TCP – vertical well
11’ x 3 3/8” x 4spf
Corkscrewed 120’ used J-55 tubing, the 60’ of new N-80 above gun was fine
Lesson learned
On to Commercial Testing
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35. KODIAK Enhanced Perforating System – First Commercial Tests
Successes
Shallow gas wells
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36. KODIAK Enhanced Perforating System – First Commercial Tests
Problems
Inadequate venting rate at depth
Flaw in the Initial Concept
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37. Flaw in the Initial Concept
Simple operation to breakdown perforations
Not that simple
You need energy (a lot of energy) to breakdown perforations
With a lot of energy, you can have problems with wireline, tubing, plugs and packers
Different formations have different energy requirements
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38. Back to Testing
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39. Montana Testing Improved Venting Reduced Propellant Load
Series One
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40. Series Two
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41. Lesson Learned - Operations
We have determined that simply reducing propellant load to 85% and setting some fairly basic procedural guidelines - eliminates a majority of the potential operational issues
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42. Product Applications
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43. Current Enhanced Perforating / Perforation Breakdown
Shallow wells (<5000’)
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44. Near - Future Propellant Stimulation / Perforation Breakdown
Moderate depth wells (<10,000’)
Limited Entry
Horizontal wells
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45. Path Forward
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46. We are excited about potential of the technology
It work’s (although it is not quick and simple)
There are several commercial applications that we are now focusing on
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47. In Conclusion
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48. KODIAK Has tremendous potential to improve the perforating process
Fits well into the StimGun family of products
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49. Questions? Comments?
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50. IPS