1. The SPE Foundation through member donations
Primary funding is provided by
The SPE Foundation through member donations
and a contribution from Offshore Europe
The Society is grateful to those companies that allow their professionals to serve as lecturers
Additional support provided by AIME
Society of Petroleum Engineers Distinguished Lecturer Program

2. Shale Well Performance Metrics
Jim Crafton
Performance Sciences, Inc.
Society of Petroleum Engineers Distinguished Lecturer Program

3. S uccessful H orizontals A nd L ucrative E conomics
A Goal Statement
S uccessful H orizontals A nd L ucrative E conomics

4. An “Overview”

5. Moving down the “size” scale
Courtsey: Stolper Geologic, Inc.

6. Some Horizontal Well Issues…
Overflush Required for Staging (19)*
Interfacial Tension Management, “pITM” (518)
Delay to First Production (320)
Rate of Change of Wellhead Pressure (28)
Shut-Ins (277)
Proppant Conductivity (353)
Artificial Lift Installation (103)
Darcy’s Law
1856
* - Number of Wells in Sample

7. A Performance Comparison, Day 0

8. Day 1

9. Day 2

10. Day 3

11. Day 4

12. Day 5

13. Day 6

14. Day 7

15. Day 8

16. Day 9

17. Day 10

18. Day 11

19. Day 12

20. Day 13

21. Day 14

22. Day 15

23. Day 16

24. Day 18

25. Day 20

26. Day 23

27. Day 26

28. Day 30

29. Day 35

30. Day 40

31. Day 45

32. Day 50

33. Day 60

34. Day 70

35. Day 80

36. Day 90

37. Day 100

38. Flow Area Helps!!!

39. Any Physical Evidence?
77% Probability the pITM wells perform differently than the non-pITM wells do.
pITM
Non-pITM

40. The RPI® Analysis Slope = 1/ Transmissibility
Elevation ~ Apparent Frac Length

41. Gotta do wha’cha gotta do…

42. Effect of Delaying Production Start

43. Finally! Got it on production

44. A Sequence of Four Shut-ins

45. Shut-ins are NOT always Harmful

46. Does the length of Shut-in Matter?

47. Well, get it on pump!

48. You really do need the “good stuff”

49. Cumulative Impact for a Year
103 Wells
277 Wells
320 Wells
518 Wells

50. The Sum of the Effects… Working Fluid Minimization is Important
Start Production Quickly
Gentle Drawdown
Use Shut-ins wisely
Duration of Shut-in doesn’t matter
Artificial Lift Installation is generally harmful

51. 100 Mesh is NOT a proppant!!! But MOST Importantly…
Manage Interfacial Tension Persistently
100 Mesh is NOT a proppant!!!

52. Your Feedback is Important Click on: Section Evaluation
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Society of Petroleum Engineers Distinguished Lecturer Program