Integrated Capacitance-Resistance Model for Characterizing Waterflooded Reservoirs
Automatic Control in Offshore Oil and Gas Production, Volume # 1 | Part# 1
Kim, Jong Suk; Lake, Larry W.; Edgar, Thomas F.
Digital Object Identifier (DOI)
Production Optimisation: Coupling of production data and transmission systems with numerical modeling and optimization and decision support applications for the reservoir and production system
Capacitance-resistance modeling of petroleum reservoirs has been used successfully to analyze transient behavior of petroleum reservoirs both onshore and offshore. This paper presents a linear reservoir model that provides advantages over the nonlinear capacitance-resistance model: convex objective function, efficient solution, and direct estimation of confidence limits on model parameters. The proposed procedure uses a constrained linear multivariate regression to infer preferential permeability trends and fractures in a waterflooded reservoir. The relationship between interwell-connectivities and interwell-distance between injector-producer well-pairs was also investigated.
Albertoni, A., and Lake, L.W. (2003). Inferring Connectivity Only From Well-Rate Fluctuations in Waterfloods. SPE Reservoir Evaluation and Engineering Journal, 6 (1): 6-16. Montgomery, D.C. and Peck, E.A. (1982). Introduction to Linear Regression Analysis. John Wiley & Sons, Ch.4, p. 124-141. Nguyen, A.N., Kim, J.S., Lake, L.W., Edgar, T.F., and Haynes, Byron (2011). Integrated Capacitance-Resistive Model for Reservoir Characterization in Primary and Secondary Recovery. Paper SPE 147344 presented at the SPE Annual Technical Conference and Exhibition, Denver, Colorado, 30 October-2 November. Sayarpour, M., Zuluaga, E., Kabir, C.S., and Lake, L.W. (2007). The Use of Capacitance-Resistive Models for Rapid Estimation of Waterflood Performance and Optimization. Paper SPE 110081 presented at the SPE Annual Technical Conference and Exhibition, Anaheim, California, 11-14 November. Sayarpour, M. (2008). Development and Application of Capacitance-Resistive Models in Water/CO2 Floods, Ph.D. Dissertation, The University of Texas at Austin, Austin, Texas. Seborg, D., Edgar, T.F., and Mellichamp, D. (2010). Process Dynamics and Control. 3rd Ed. John Wiley & Sons, Ch.2, p.25. Thompson, M. (2006). Intuitive Analog Circuit Design. Elsevier e-Book, Ch. 2, p.16. Weber, D., Edgar, T.F., Lake, L.W., Lasdon, L., Kawas, S., and Sayarpour, M. (2009). Improvements in Capacitance-Resistive Modeling and Optimization of Large Scale Reservoirs. Paper SPE 121299 presented at the SPE Western Regional Meeting, San Jose, California, 24-26 March. Yousef, A.A., Gentil, P.H., Jensen, J.L. and Lake, L.W. (2006). A Capacitance Model to Infer Interwell Connectivity from Production and Injection Rate Fluctuations, SPE Reservoir Evaluation & Engineering Journal, 9 (5): 630-646. SPE-10.2118. DOI: 10.2118/95322-PA.