MRC well is defined as a well having an aggregate reservoir contact in excess of 5 km, through a single or multi-lateral configuration. The MRC well concept was developed to further improve well productivity and thereby lower drawdown pressures resulting in higher well potential and lower development costs

1. Maximum Reservoir Contact Wells
Presented by:
Mohsen Mahmoudvand
MSc Student of Petroleum Engineering
University of Tehran
May 2015
1

2. Outlines
Introduction
MRC Types
MRC
Behaviour
2
Intelligent
Well
System

3. What Is An MRC?
3

4. MRC
• Reservoir contact in excess of 5 km
• A single or multilateral configuration
4

5. The First Deployment?
5

6. Shaybah Filed
6

7. Shaybah Filed
7
• Saudi Arabia Desert
• Mountainous Sand
• Low Permeability
• API 42°
• GOR 750 scf/STB
• Large Overlying Gas Cap
• 1996 ; 1 km Horizontal
• 1998–2001 ; 2 km & 3 km

8. Cumulative Production
8

9. GOR vs. NP
9

10. Shaybah 380
10
• In 2002
• TRC 8.5 Km
• Open-hole
• Trilateral

11. Growth of MRC Wells
11

12. Types of MRC Wells
12

13. Fork Type
13

14. Fishbone Type
14

15. Fork-Fishbone
15

16. Schematic of Shayba 368
16

17. Why MRC Wells?
17

18. Productivity Index (J)
18

19. Productivity Index (J)
19

20. Production Test
20

21. Production Test
21

22. Coning Effects
22
Viscous ForcePressure
DrawDown

23. Coning Effects
• Able to have lower pressure drawdown
23

24. Higher J
24
Lower D.D
Higher Rate
Coning Effects

25. 25
Coning Effects
• Lower Drawdown delays in coning

26. 26
Coning Effects

27. Unit Development Cost
27
Well
Services
CompletionMonitoring
Reduction in
Number of the
Wells
Drilling

28. • Costs of drilling, completion and well hook-up per bbl/day of initial
production.
Unit Development Cost
28

29. Workover to New MRC Wells
29
• Converting dead or weak single horizontal well to an MRC well

30. Workover to New MRC Wells
30

31. Workover to New MRC Wells
31

32. Workover Results
32

33. Selection Criteria
33

34. Tight Res.
Selection Criteria
Thin Res.
MRC Wells
34

35. Intelligent Well System
35

36. IWS
36
Remote Control
and Monitornig
Multiple Zones
within a Single
Well
Optimizing
Production

37. IWS
37

38. Adjustable Choke
38
• HCM Hydraulic Sliding Sleeve
• HCM-A™ Adjustable Choke
• 8 Position: 100% Open, 20%, 15%, 12%, 9%, 6%, 3%, 0% Open
• 2 Hydraulic Lines
• Amount of Fluid Cycled

39. Water-Cut Management
39
• Well A-12 in Haradh Field
• Early water cut in lateral-3 because of the fracture

40. Fiber Optic Monitoring System
40
• Laser Beams
• Fullbore – No Pressure Lost

41. Fiber Optic Monitoring System
41
• Real Time Zonal Pressure and Temperature
• Optical 2-Phase Flowmeters
• Embedded PVT
• Oil and Water Flow Rates from each Zone

42. Cemented Liner Intelligent Completion
42

43. Smart Open-hole Completion
43

44. Swell Packer
44

45. Swell Packer
45

46. References
46
• Saleri, SHAYBAH-220, A Maximum Reservoir Contact Well, SPE, Paper
81487, April 2003
• Dossary, Mahgoub, “Challenges and achievement of Drilling MRC Wells
in Shaybah Field”. SPE 85307
• Hembling, Salamy. Swell Packers: Enabling Openhole Intelligent Well
Completion. 2006. Paper SPE 100824
• Al-Bani, Al-Sarrani, Saudi Aramco. A Case Study of the World’s First MRC
With Intelligent Well Systems.2007. SPE 105754
• Salamy, Saeed Al-mubarak, Saudi Aramco. MRC: Six Years of
Performance Lessons Learned. SPE 118030

47. 47
Thank You For Your
Attention