A STUDY ON TWO TRANSFORMED KOPITOV DECLINE CURVES

Abstract

Abstract: Kopitov decline curve was examined and two transformed formulae of it were presented: one is general formula, the other corresponds to the case with decline index n = 0.5 of the Arps' hyperbolic curve. The method for getting decline parameters of transformed decline curve was presented. Results were compared with actual production data. thereby recommending the formula with smaller error. Adjustment measures of reservoir produced great effects on decline patterns. Thus, the formula of decline curve should be selected according to types of oil reservoir and adjustment measures to be used.

Key words: Production, Curve, Decline, Transform, Error

Yu Qitai, Wang Zhigang. A STUDY ON TWO TRANSFORMED KOPITOV DECLINE CURVES[J]. Xinjiang Petroleum Geology, 1995, 16(1): 52-57.

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A STUDY ON TWO TRANSFORMED KOPITOV DECLINE CURVES

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