53Quick Prediction of The Reservoir Production Future Using The Capacity- Resistance Model


The capacity- resistance model is considered as a quick method to simulate the reservoirs. This method does not require the geological model and is made only by injection and production data. In the method, the reservoir is received the injection rate as the input driver. The response to the driver is used through the production wells to determine the quantitative relationship mode of the injection and production wells. Simulation of the common reservoirs to simulate a field with several wells and long production history is strongly time-consuming. The priority of the capacity- resistance model is the providing of a quick model and predicting the behavior of such complex reservoirs. In this study, at first the concept of the model and its equations are provided. Then, the model is validated by several artificial reservoir models and the results are compared with numerical simulator. Then the model is used to predict the future of the reservoir production, indicating the responses of this method are reliable for quick estimation of the reservoir performance.

Keywords: the capacity- resistance model, time constant, weight coefficient, production history, simulation


  • Albertoni, A. and Lake, L.W.; “Inferring Interwell Connectivity Only From Well-Rate Fluctutions in Waterflood”, SPEREE 6(1): 6-16, 2003.

  • Yousef, A. A., Jensen, 1. L., and Lake, L. W.; “Analysis and Interpretation of InterwellConnectivity from Production and Injection Rate Fluctuations Using a Capacitance Model”, SPE 99998, SPEIDOE Symposium on improved Oil Recovery, Tulsa, Oklahoma, U.S.A, 2006

  • Liang, X., Weber, B., Edgar, T.F., Lake, L.W., Sayarpour M., and Yousef, A.A.; “Optimization of Oil Production in a  Reservoir Based on Capacitance Model of Production and Injection Rate”, Paper SPE 107713 Presented at the SPE Hydrocarbon Economics and Evaluation Symposium, Dallas, Texas,2007.

  • Sayarpour, M.; “Development and Application of Capacitance–Resistance Models for Water/CO2 Flood”, PhD Dissertation, The University of Texas at Austin, Astin, Texas, 2008.

  • Kaviani, D., Jensen, J. L., and Lake, L. W.; “Estimation of Interwell Connectivity in the Case of Fluctuating Bottomhole Pressures”, SPE 117856, Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, UAE,2008.

  • Delshad, M., Bastami, A., Pourafshary, P.; “The use of Capacitance-Resistive Model for Estimation of Fracture Distribution in the Hydrocarbon Reservoir”, SPE 126076, SPE Saudi Arabia Section Technical Symposium, Khobar, Saudi Arabia, 2009.

  • Salazar-Bustamante, M., Gonzalez-Gomez, H., Matringe, S., & Castineira, D.; “Combining Decline-Curve Analysis and Capacitance/Resistance Models To Understand and Predict the Behavior of a Mature Naturally Fractured Carbonate Reservoir Under Gas Injection”. Paper SPE 153252, presented in SPE Latin America and Caribbean Petroleum Engineering Conference, Mexico City, Mexico, Apr. 16-18, 2012.

  • Cao,  F.,  Luo,  H.  and  Lake,  L.  W.; “Development  of  a  Fully  Coupled  Two-phase Flow Based Capacitance Resistance Model (CRM) ”. Paper SPE 169486, presented at the SPE Improved Oil Recovery Symposium, Tulsa, OK, Apr., 12-16,2014.