New Cold-Production Technique for Heavy Oil with Strong Bottomwaterdrive
- Wenting Qin (China University of Petroleum (Beijing)) | Andrew K. Wojtanowicz (Louisiana State University) | Christopher D. White (Louisiana State University)
- Document ID
- Society of Petroleum Engineers
- SPE Journal
- Publication Date
- April 2014
- Document Type
- Journal Paper
- 270 - 279
- 2013. Society of Petroleum Engineers
- 4.1.5 Processing Equipment, 4.1.2 Separation and Treating
- 2 in the last 30 days
- 357 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 10.00|
|SPE Non-Member Price:||USD 30.00|
Few heavy-oil reservoirs with strong bottomwaterdrive have been developedsuccessfully, because severe water coning causes low ultimate recovery, lowwell productivity, and high water production. In these reservoirs, thermal andgravity-assisted methods that could improve recovery are perceived aseconomically unfavorable or technologically infeasible. In this paper, wepropose a new cold-production technique, called the bilateral water sink (BWS),to meet those challenges.
The BWS method suppresses water cresting by producing oil and watersimultaneously from bilateral horizontal wells completed in the oil and waterzones separately. Unlike conventional horizontal-well production, where watercresting causes water to bypass oil, making the waterdrive mechanismineffective, the BWS prevents water cresting by altering the potentialdistribution in the near-well region. With cresting suppressed, water drivesthe oil from the edges of the well drainage area to the well, resulting in highultimate recovery. By exploiting the natural reservoir energy of thebottomwaterdrive, the BWS becomes economically, technically, andenvironmentally appealing--especially for offshore fields where cold productionis the only option and oil/water separation is a problem.
In this paper, new analytical models are derived to design the water and oilrates for BWS and to quantify the method's effect of avoiding water crestingand improving oil recovery. The analytical models are verified with numericalsimulations. The BWS technique is also theoretically demonstrated by use ofdata from an actual oil field. The results show a considerable increase of oilrecovery, from less than 15% for a conventional horizontal well toapproximately 40% for a BWS well.
|File Size||641 KB||Number of Pages||10|
Bear, J. 1972. Dynamics of Fluids in Porous Media. New York City, NewYork: American Elsevier Publishing Company, Inc.
Butler, R. M. and Mokrys, I. J. 1993. Closed-Loop Propane Extraction MethodFor The Recovery Of Heavy Oils And Bitumens Underlain By Aquifers: The VapexProcess. Paper SPE SS-93-35 presented at the Technical Meeting/PetroleumConference of the South Saskatchewan Section, Regina, Saskatchewan, Canada,18-20 October. http://dx.doi.org/10.2118/SS-93-35.
Chen, H.-K. 1993. Performance of Horizontal Wells, Safah Field, Oman. PaperSPE 25568 presented at the Middle East Oil Show, Bahrain, 3-5 April. http://dx.doi.org/10.2118/25568-MS.
Dake, L. P. 1978. Fundamentals of Reservoir Engineering, firstedition. Amsterdam, the Netherlands: Elsevier.
Dupuit, J. 1863. Theoretical and Practical Studies on Underground WaterMovement. Pairs.
Dusseault, M. B. 2009. The Future of Oil: Canadian Viscous Oil Resources andNew Production Technologies. Course notes, University of Waterloo, Waterloo,Ontario, Canada.
Fram, J. H. and Palermo, R. M. 1996. "Closing the Flood Gates"-History ofthe South Belridge Field Steam Drive Aquifer Project. Paper SPE 35660 presentedat the SPE Western Regional Meeting, Anchorage, Alaska, 22-24 May. http://dx.doi.org/10.2118/35660-MS.
Johns, Russell T., Lake, Larry W., Ansari, Rafay Z., et al. 2005. Predictionof Capillary Fluid Interfaces During Gas or Water Coning in Vertical Wells.SPE J. 10 (4): 440-448. http://dx.doi.org/10.2118/77772-PA.
Houpeurt, A. 1975. Elements of Fluid Mechanics in Porous Media,second edition. Paris, France: Editions Technic.
Karmaker, K. and Maini, B. B. 2003. Applicability of Vapor ExtractionProcess to Problematic Viscous Oil Reservoirs. Paper SPE 84034 presented at theSPE Annual Technical Conference and Exhibition, Denver, Colorado, 5-8 October.http://dx.doi.org/10.2118/84034-MS.
Murphy, P. J. 1990. Performance of Horizontal Wells in the Helder Field.J. Pet Tech 42 (6): 792-800. http://dx.doi.org/10.2118/18340-PA.
Muskat, M. 1937. Flow of Homogeneous Fluids Through Porous Media. NewYork City, New York: McGraw-Hill Book Company, Inc.
Qin, W. 2011. Analytical Design Method for Cold Production of Heavy Oil withBottom Water Using Bilateral Sink Wells. PhD dissertation, Louisiana StateUniversity, Baton Rouge, Louisiana (2011).
Saskoil, S. S. and Butler, R. M. 1990. The Production of Conventional HeavyOil Reservoirs with Bottom Water Using Steam-Assisted Gravity Drainage. J.Cdn. Pet. Tech. 29 (2): 78-86. http://dx.doi.org/10.2118/90-02-03.
Sherrard, D. W., Brice, B. W., MacDonald, D. G. 1987. Application ofHorizontal Wells at Prudhoe Bay. J. Pet Tech 39 (11):1417-1425. http://dx.doi.org/10.2118/15376-PA.
Siemek, J. and Stopa, J. 2002. A Simplified Semi-Analytical Model forWater-Coning Control in Oil Wells with Dual Completions System. J. EnergyResour. Tech. 124 (4): 246-252. http://dx.doi.org/10.1115/1.1506699.
Target, P. L. 1992. The Haven Oil Field: Development of a Tiny MarginalField with Horizontal Wells. J. Pet Tech 44 (4): 496-501.http://dx.doi.org/10.2118/20975-PA.
Trindade, W. L. and Branco, C. C. M. 2005. The Offshore Heavy OilDevelopment Challenges in Brazil. Paper SPE 97381 presented at the SPE LatinAmerican and Caribbean Petroleum Engineering Conference, Rio de Janeiro,Brazil, 20-23 June. http://dx.doi.org/10.2118/97381-MS.
Yang, Z. M. 2009. A New Diagnostic Analysis Method for WaterfloodPerformance. SPE Res Eval & Eng 12 (2): 341-351. http://dx.doi.org/10.2118/113856-PA.
Yang, Z. M. 2012. Production Performance Diagnostics Using Field ProductionData and Analytical Models: Method and Case Study for the HydraulicallyFractured South Belridge Diatomite. Paper SPE 153138 presented at the SPEWestern Regional Meeting, Bakersfield, California, 19-23 March. http://dx.doi.org/10.2118/153138-MS.
Zhou, W., Zhang, J., Feng, G., et al. 2008. Key Technologies of PolymerFlooding in Offshore Oilfield of Bohai Bay. Paper SPE 115240 presented at theSPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, Australia, 20-22October. http://dx.doi.org/10.2118/115240-MS.