A simple model to infer interwell connectivity only from well-rate fluctuations in waterfloods

Abstract This paper presents a procedure that systematically accounts for the interactions between wells in a reservoir. The reservoir is considered to be an input–output system with the injection rates as the input and production rates as the output. A simple capacitance model is developed to infer the interwell connectivity only from the injection/production data fluctuations on a reservoir. A commercial simulator on a synthetic field with five injectors and four producers is used to test the approach. The simulation results show that the simple capacitance model satisfactorily captures the long time dependent behavior between injectors and producers.

[1]  Eric R. Ziegel.  Statistics for Petroleum Engineers and Geoscientists , 1999, Technometrics.

[2]  Pablo Hugo Gentil,et al.  A Capacitance Model To Infer Interwell Connectivity From Production and Injection Rate Fluctuations , 2005 .

[3]  Belkis Teresa Refunjol,et al.  Reservoir Characterization of North Buck Draw Field Based on Tracer Response and Production/Injection Analysis , 1996 .

[4]  L. Lake,et al.  Inferring Interwell Connectivity Only From Well-Rate Fluctuations in Waterfloods , 2003 .

[5]  K. Heffer,et al.  Novel techniques show links between reservoir flow directionality, earth stress, fault structure and geomechanical changes in mature waterfloods , 1997 .

[6]  Ali Abdallah Al-Yousef,et al.  Investigating statistical techniques to infer interwell connectivity from production and injection rate fluctuations , 2006 .

[7]  Pablo Hugo Gentil.  The Use of Multilinear Regression Models in Patterned Waterfloods: Physical Meaning of the Regression Coefficients , 2005 .

[8]  A. K. Chopra,et al.  An Integrated Approach to Estimate Well Interactions , 1998 .

[9]  Liang Ximing.  Active set truncated-newton algorithm for simultaneous optimization of distillation column , 2005 .

[10]  Mohan Kelkar,et al.  Reservoir Management Using Production Data , 1999 .

[11]  K. Aziz,et al.  Optimization of Production Operations in Petroleum Fields , 2002 .

[12]  Vassileios D. Kosmidis,et al.  Optimization of Well Oil Rate Allocations in Petroleum Fields , 2004 .