Calibrating Chemical Flooding Recoverable Reserves with Graduation-Geometric Proportion Lapse Method

Abstract

Abstract: In light of characteristics of large incremental production rate, varied water cut and short response time, the graduation- geometric proportion lapse method used to calibrate chemical flooding recoverable reserves is discussed. The graduation can be made for phase of obvious fluctuation emerged in annual output data serial, generating a set of new data serial, which is applied for calculation of production index by regression with geometric proportion lapse method. Through calculation with small spacing data from Gugong oilfield, the method is verified to be more reliable. So does the calculation with data from 5₂₊₃ Well Block of west of District 7 in the field. Hence, it is indicated that this method is especially applied for calculation of recoverable reserves in chemical floding process and possesses values for deployment.

Key words: decline, calibration, chemical flooding, recoverable reserve

CLC Number:

WANG Xue-zhong, TIAN Ji, GU Jian-wei. Calibrating Chemical Flooding Recoverable Reserves with Graduation-Geometric Proportion Lapse Method[J]. Xinjiang Petroleum Geology, 2003, 24(6): 585-586.

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Calibrating Chemical Flooding Recoverable Reserves with Graduation-Geometric Proportion Lapse Method

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