1. IMPACT OF ADVANCED COMPLETIONS ON RESERVOIR AND PRODUCTION PERFORMANCE
S. Betancourt, R. van Delden, C. Lucas, Y. Jalali, J. Algeroy
Schlumberger Completion Technologies

2. AGENDA Commingled Production Applications Improved Reservoir Drainage
8/28/2018
AGENDA
Commingled Production Applications
Case study 1 - North Sea
Case study 2 - Wytch Farm
Case study 3 - Oseberg
Case study 4 - Troll
Improved Reservoir Drainage
Conclusions

3. 8/28/2018
Case Study 1 - North Sea
TRFC-H
FloWatcher
TRFC-H

4. Pressure and Water Production Performance
8/28/2018
Pressure and Water Production Performance

5. Oil Production Performance
8/28/2018
Oil Production Performance

6. Wytch Farm (Water Control)
8/28/2018
Wytch Farm (Water Control) Qo
16000
14000
12000
10000
8000
6000
4000
2000
Time (Days)
commingled w/ control
commingled w/o control
sequential
Multi-position Flow Control Valves

7. Oseberg (Gas Control) Production, m3/d commingled w/ control
8/28/2018
Oseberg (Gas Control)
Production, m3/d
GOC
WOC
commingled w/ control
sequential production
Time, days

8. Troll (Natural Gas Lift)
8/28/2018
Oil Production (bpd)

9. Coning in Horizontal Wells
8/28/2018
Coning in Horizontal Wells
gas
pressure
flowrate
oil
heel
toe
water

10. Coning in Horizontal Wells
8/28/2018
Coning in Horizontal Wells
Water Drive
Gascap Drive
Dual Drive
Multiple Well
(top view)
*Yeten et al (SPE 68077, Bahrain) & Sinha et al (SPE 68635, Jakarta)

11. Completion with Downhole Flow Control
8/28/2018
Completion with Downhole Flow Control
Downhole Flow Control DPmax(along the well)-5.6 psia
Maximum Drawdown- 7.3psia
Conventional Completion
DPf (Toe to Heel)-34.5 psia
Maximum Drawdown psia

12. Improved Drainage Applications
8/28/2018
Improved Drainage Applications
*Yeten et al (SPE 68077, Bahrain) & Sinha et al (SPE 68635, Jakarta)

13. 8/28/2018
CONCLUSIONS
Advanced Completions in commingled production applications can: accelerate production, control GOR and watercut.
Drainage in reservoirs with coning tendencies can be improved by delaying breakthrough time, and improving sweep. Also beneficial in field development.