Performance Analysis of Wells With Downhole Water Loop Installation for Water Coning Control
- Lu Jin (Louisiana State University) | Andrew K. Wojtanowicz (Louisiana State University)
- Document ID
- Society of Petroleum Engineers
- Journal of Canadian Petroleum Technology
- Publication Date
- June 2010
- Document Type
- Journal Paper
- 38 - 45
- 2010. Society of Petroleum Engineers
- 1.8 Formation Damage, 2.4.3 Sand/Solids Control, 5.2 Reservoir Fluid Dynamics, 5.6.8 Well Performance Monitoring, Inflow Performance, 4.1.5 Processing Equipment, 4.1.2 Separation and Treating, 5.5 Reservoir Simulation, 5.3.2 Multiphase Flow, 2 Well Completion, 1.6 Drilling Operations, 6.5.2 Water use, produced water discharge and disposal, 3.2.6 Produced Water Management
- Downhole water sink (DWS) technology
- 3 in the last 30 days
- 1,003 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 10.00|
|SPE Non-Member Price:||USD 30.00|
Downhole water sink (DWS) technology controls bottomwater coning by draining water with a second completion placed under the oil-water contact. The technology has been studied theoretically with analytical, numerical and physical models, showing an increased rate of oil production and recovery. Also, improved wells? productivity with DWS has also been demonstrated in several field implementations. However, downhole drainage in DWS wells requires independent lifting of considerable volumes of water that necessitates using either two tubing strings (for water and for oil) or one tubing and the tubing/casing annulus--for water and oil, respectively. Also, extensive water drainage in the systems with weak bottomwater drive may cause a reservoir pressure drop and the need to return the produced water from the surface to the aquifer for pressure maintenance using designated injection wells. DWS well completion with the downhole water loop (DWL) offers the benefit of re-injecting the drainage water back to the same aquifer in the same well without lifting the water to the surface. This could be achieved by designing a DWS well with three completions: the top (oil) completion, the middle completion for water drainage and the bottom completion for water injection. Despite mechanical complexity of the triple well completion, there are two limitations of the DWL system--the drained-and-injected water must be free from oil and the pressure interference between the two water completions must be minimized.
In this work, a well performance (nodal) analysis model has been developed for a DWL well completed in an oil reservoir underlain by water layer of known thickness. In the model, the positions (depths) of the three well completions and the rates of production and drainage/injection are design parameters, while all other properties are reservoir system properties. The model has been used to find the operational range of DWL for a given reservoir system and to compare DWL wells with conventional wells, single-completed at the top of the oil layer.
The results show that for each DWL system, there is such a combination of the top production rate, bottom drainage-injection rate and drainage-injection distance (D/I spacing) that would result in water-free oil production. There is a minimum value of D/I spacing above which the detrimental effect of pressure interference between the two water completions is practically eliminated and the beneficial effect of water drainage on well performance is strong ? a two-fold increase of water drainage rate would increase the critical oil rate by 80%. Also, because the minimum D/I spacing is relatively small, DWL wells may be installed in reservoirs with thin layers of bottomwater.
|File Size||2 MB||Number of Pages||8|
- Hernandez, J.C. 2007. Oil Bypassing by Water Invasion to Wells Mechanismsand Remediation. PhD dissertation, Louisiana State University and Agriculturaland Mechanical College, Baton Rouge, Louisiana (09 July 2007).
- Shirman, E.I. 1998. Experimental and Theoretical Study of Dynamic WaterControl in Oil Wells. PhD dissertation, Louisiana State University, BatonRouge, Louisiana.
- Abou-Sayed, A.S., Zaki, K.S., Wang, G.G., and Sarfare, M.D. 2005. A Mechanistic Model for FormationDamage and Fracture Propagation During Water Injection. Paper SPE 94606presented at the SPE European Formation Damage Conference, Sheveningen, TheNetherlands, 25-27 May. doi: 10.2118/94606-MS.
- Swisher, M.D. and Wojtanowicz, A.K. 1996. In Situ-Segregated Production of Oiland Water--A Production Method With Environmental Merit: Field Application.SPE Advanced Technology Series 4 (2): 51-58. SPE-29693-PA.doi: 10.2118/29693-PA.
- Bowlin, K.R., Chea, C.K., Wheeler, S.S., and Waldo, L.A. 1997. Field Application of In-situ GravitySegregation to Remediate Prior Water Coning. Paper SPE 38296 presented atthe SPE Western Regional Meeting, Long Beach, California, USA, 25-27 June. doi:10.2118/38296-MS.
- Ramos, L. et al. 2000. Downhole Water Sink Completion Improves ProductionDecline in Venezuelan Reservoirs with Strong Aquifer Support. Paper SPE 88888presented at the SPE Annual Technical Conference and Exhibition, Dallas, 1-4October.
- Ju, B., Dai, S., Fan, T., Wang, X., and Wu, H. 2005. An Effective Method to ImproveRecovery of Heavy Oil Reservoir with Bottom Water Drive. Paper IPTC 10521presented at the International Petroleum Technology Conference, Doha, Qatar,21-23 November. doi: 10.2523/10521-MS.
- Davies, D.R, Narayanasamy, R., Kristensen, B., and Somerville, J.M. 2008.Analysis of Possible Applicationsof Dual ESPs--A Reservoir-Engineering Perspective. SPE Prod &Oper 23 (2): 257-267. SPE-99878-PA. doi:10.2118/99878-PA.
- Gunning, J., Paterson, L., and Poliak, B. 1999. Coning in dual completedsystems. J. Pet. Sci. Eng. 23 (1): 27-39.doi:10.1016/S0920-4105(99)00006-6.
- Ould-amer, Y., Chikh, S., and Naji, H. 2004. Attenuation of waterconing using dual completion technology. J. Pet. Sci. Eng. 45 (1-2): 109-122. doi:10.1016/j.petrol.2004.04.004.
- Siemek, J. and Stopa, J. 2002. A Simplified Semi-Analytical Model forWater-Coning Control in Oil Wells with Dual Completions System. Journal ofEnergy Resources Technology 124 (4): 246-252.
- Johns, R.T., Lake, L.W., Ansari, R.Z., and Delliste, A.M. 2005. Prediction of Capillary FluidInterfaces During Gas or Water Coning in Vertical Wells. SPE J. 10 (4): 440-448. SPE-77772-PA. doi: 10.2118/77772-PA.
- Utama, F.A. 2008. An Analytical Model to Predict Segregated Flow in theDownhole Water Sink Completion and Anisotropic Reservoir. Paper SPE 120196presented as part of the student paper contest at the SPE Annual TechnicalConference and Exhibition, Denver, 21-24 September.
- Wojtanowicz, A.K. and Xu, H. 1992. A New Method to Minimize OilwellProduction Water Cut Using A Downhole Water Loop. Paper CIM 92-13 presented atthe 43rd Annual Technical Conference of the Petroleum Society of CIM, Calgary,7-10 June.
- Wojtanowicz, A.K. and Shirman, E.I. 1996. An in-situ method for downholedrainage-injection of formation brine in a single oil producting well. InDeep Injection Disposal of Hazardous and Industrial Waste, ed. J.A. Appsand C. Tsang, 403-420. New York: Academic Press.
- Smith, C.R. and Pirson, S.J. 1963. Water Coning Control in Oil Wells byFluids Injection. SPE J. 3 (4): 314-326; Trans.,AIME, 228. SPE-613-PA. doi: 10.2118/613-PA.
- Kjos, T., Sangesland, S., Michelet, J.F., and Kleppe, J. 1995. Down-Hole Water-Oil Separation andWater Reinjection Through Well Branches. Paper SPE 30518 presented at theSPE Annual Conference and Exhibition, Dallas, 22-25 October. doi:10.2118/30518-MS.
- Paige, R.W., Murray, L.R., Martins, J.P., and Marsh, S.M. 1995. Optimising Water InjectionPerformance. Paper SPE 29774 presented at the Middle East Oil Show,Bahrain, 11-14 March. doi: 10.2118/29774-MS.
- Detienne, J-L., Danquigny, J., Lacourie, Y., and Espy, M. 2002. Produce water re-injection on alow permeability carbonaceous reservoir. Paper SPE 78482 presented at the AbuDhabi International Petroleum Exhibition and Confedrence, Abu Dhabi, UAE,13-16 October. doi: 10.2118/78482-MS.
- Singh, K. 2002. Designing aProduced Water Re-Injection Program in Bekapai Field. Paper SPE 101938presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition,Melbourne, Australia, 8-12 October. doi: 10.2118/101938-STU.
- Abou-Sayed, A.S., Zaki, K.S., Wang, G., Sarfare, M.D., and Harris, M.H.2007. Produced Water ManagementStrategy and Water Injection Best Practices: Design, Performance, andMonitoring. SPE Prod & Oper 22 (1): 59-68. SPE-108238-PA. doi:10.2118/108238-PA.
- Inikori, S.O. 2002. Numerical Study of Water Coning Control with DownholeWater Sink (DWS) Well Completions in Vertical and Horizontal Wells. PhDdissertation, Louisiana State University, Baton Rouge, Louisiana (19 March2002).
- Arslan, O., White, C.D., and Wojtanowicz, A.K. 2004. Nodal Analysis for Oil Wells WithDownhole Water Sink Completions. Paper CIPC 2004-242 presented at theCanadian International Petroleum Conference, Calgary, 8-10 June. doi:10.2118/2004-242.
- Arslan, O. 2005. Optimal Operating Strategy for Wells with Downhole WaterSink Completions to Control Water Production and Improve Performance. PhDdissertation, Louisiana State University and Agricultural and MechanicalCollege, Baton Rouge, Louisiana (May 2005).
- Song, F., Hou, J., and Su, N. 2009. Model building forChang-8 low permeability sandstone reservoir in the Yanchang formation of theXifeng oil field. Mining Science and Technology (China) 19(2): 245-251. doi:10.1016/S1674-5264(09)60047-8.
- Hu, K. and Dietrich, J. 2009. Hydrocarbon Reservoir Potential inCarboniferous Sandstones in the Maritimes Basin, Eastern Canada. Proc.,Frontiers + Innovation—2009 CSPG CSEG CWLS Convention, Calgary, 4-8 May,746-749.
- Neasham, J.W. 1977. TheMorphology of Dispersed Clay in Sandstone Reservoirs and Its Effect onSandstone Shaliness Pore Space and Fluid Flow Properties. Paper SPE 6858presented at the SPE Annual Fall Technical Conference and Exhibition, Denver,9-12 October. doi: 10.2118/6858-MS.
- Dixon, S.A., Summers, D.M., and Surdam, R.C. 1989. Diagenesis andpreservation of porosity in Norphlet Formation (Upper Jurassic), southernAlabama. AAPG Bulletin 73 (6): 707-728.
- Joshi, S.D. 1991. Horizontal Well Technology. Tulsa, Oklahoma:PennWell Publishing.
- Pang, S. and Sharma, M.M. 1997. A Model for Predicting InjectivityDecline in Water-Injection Wells. SPE Form Eval 12 (3):194-201. SPE-28489-PA. doi: 10.2118/28489-PA.
- Gilbert, W.E. 1954. Flowing and gas-lift well performance. API Drillingand Production Practice 20 (1954): 126-157.
- Brown, K.E. and Beggs, H.D. 1977. The Technology of Artificial LiftMethods. Tulsa, Oklahoma: PennWell Books.
- Mach, J., Proano, E., and Brown, K.E. 1979. A Nodal Approach for ApplyingSystems Analysis to the Flowing and Artificial Lift Oil or Gas Well. Paper SPE8025 available from SPE, Richardson, Texas.
- Golan, M. and Whitson, C.H. 1986. Well Performance. Boston,Massachusetts: International Human Resources Development Corporation(IHRDC).
- Beggs, H.D. 1991. Production Optimization Using NODAL Analysis.Tulsa, Oklahoma: OGCI-Petroskills.
- Qin, W. and Wojtanowicz, A.K. 2007. Well Performance Analysis for HeavyOil With Water Coning. Paper CIPC 2007-162 presented at the CanadianInternational Petroleum Conference, Calgary, 12-14 June. doi:10.2118/2007-162.