Economic Comparison of Intelligent Wells in Simultaneous Production of Oil and Gas Reserves From Single Wellbore
- Mohamed Nagib (Salford University) | Ifeanyi Ezuka (Salford University) | Ghasem G. Nasr (Salford University)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- May 2011
- Document Type
- Journal Paper
- 203 - 210
- 2011. Society of Petroleum Engineers
- 3.1.6 Gas Lift, 4.6 Natural Gas, 7.1.9 Project Economic Analysis, 2 Well Completion, 2.3 Completion Monitoring Systems/Intelligent Wells, 4.6.2 Liquified Natural Gas (LNG)
- simulation, smart well, oil thin reservoir
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- 871 since 2007
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Maximizing oil recovery in thin and ultrathin (less than 30 ft) oil columns is a challenge as a result of coning or cresting of unwanted fluids into the wellbore in both vertical and horizontal wells. There is considerable oil left behind, above the well completion in the reservoir. This may also occur in horizontal wells when bottom- or edgewater encroachment or invasion takes place.
The development of the gas resources from these reservoirs is a major challenge because regulators want an optimal development plan for the oil rim before project approval is made. This can delay upstream gas supply to liquefied-natural-gas (LNG) projects and grind down project value. A smart development strategy has been proposed for the development of these challenging reservoirs. This involves the use of intelligent multilateral wells in simultaneous oil and gas development; the first (top) horizontal-lateral-well legs of the multilateral well will be completed at the crest of the reservoir in the gas cap. The second (lower) horizontal-lateral-well leg will be completed just above the gas/oil contact (GOC).
Extensive numerical reservoir-flow simulation has been used to demonstrate the ability and possibility of using a single wellbore for simultaneous oil and gas production. This proposed development strategy will provide high impact on the asset of such oil and gas reservoirs by providing a cost-effective-technology solution. The numerical-simulation results show that the intelligent multilateral well will significantly improve the overall cumulative production of gas and oil from a thin oil reservoir with a large gas cap compared with conventional wells and also provide the opportunity for automatic gas lift for low-gravity crude (°API).
This paper (1) presents the use of intelligent multilateral wells to produce oil and gas from the same wellbore simultaneously in the thin oil reservoir and (2) provides information on the delay and reduction of excess production of unwanted fluids (water) during oil and gas production from thin oil reservoirs using intelligent-well technology, including cost effectiveness.
|File Size||721 KB||Number of Pages||8|
Almutairi, F.H., Davies, D.R., and Singh, S. 2007. Enhancing Production From Thin OilColumn Reservoirs Using Intelligent Completions. Paper SPE 110207 presentedat the Asia Pacific Oil and Gas Conference and Exhibition, Jakarta, 30October-1 November. doi: 10.2118/110207-MS.
Behrenbruch, P. and Mason, L.T. 1993. Optimal Oilfield Development ofFields with a Small Gas cap and Strong Aquifer. Paper SPE 25353 presentedat SPE Asia Pacific Oil and Gas Conference, Singapore, 8-10, February. doi:10.2118/25353-MS.
Betancourt, S., Dahlberg, K., Hovde, Ø., and Jalali, Y. 2002. Natural Gas-Lift: Theory andPractice. Paper SPE 74391 presented at the SPE International PetroleumConference and Exhibition in Mexico, Villahermosa, Mexico, 10-12 February. doi:10.2118/74391-MS.
Billiter, T.C. and Dandona, A.K. 1999. Simultaneous Production of Gas Capand Oil Column With Water Injection at the Gas/Oil Contact. SPE Res Eval& Eng 2 (5): 412-419. SPE-57640-PA. doi:10.2118/57640-PA.
Cosmo, C. and Fatoke, O. 2004. Challenges of Gas Development: SokuField Oil Rim Reservoirs. Paper SPE 88894 presented at the Nigeria AnnualInternational Conference and Exhibition, Abuja, Nigeria, 2-4 August. doi:10.2118/88894-MS.
ECLIPSE VFPi User Guide. 2008. Houston: Schlumberger/GeoQuest.
Glandt, C.A. 2005. ReservoirManagement Employing Smart Wells: A Review. SPE Drill & Compl 20 (4): 281-288. SPE-81107-PA. doi: 10.2118/81107-PA.
Kabir, C.S., Agamini, M., and Holguin, R.A. 2008. Production Strategy for Thin-OilColumns in Saturated Reservoirs. SPE Res Eval & Eng 11 (1): 73-82. SPE-89755-PA. doi: 10.2118/89755-PA.
Naguib, M.A., Aziz, K.A., and Hussein, A. 2001. Optimizing Field Performance UsingReservoir Modeling and Simulation. Paper SPE 70037 presented at the SPEPermian Basin Oil and Gas Recovery Conference, Midland, Texas, USA, 15-17 May.doi: 10.2118/70037-MS.
Naguib, M.M, El Bayoumi, A., and El-Emam, N. 2000. Guideline of Artificial LiftSelection for Mature Field. Paper SPE 64428 presented at the SPE AsiaPacific Oil and Gas Conference and Exhibition, Brisbane, Australia, 16-18October. doi: 10.2118/64428-MS.
Vaspar, A. 2006. Auto,Natural, or In-Situ Gas-Lift Systems Explained. 2008. SPE Prod &Oper 23 (1): 75-80. SPE-104202-PA. doi: 10.2118/104202-PA.