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Application of New Water Flooding Characteristic Curve in the High Water-Cut Stage of an Oilfield

Fluid dynamics & Materials Processing 2022年第3期18卷 661-677页

作者： Xi Zhang Changquan Wang Hua Wu Xu Zhao School of Petroleum Engineering Yangtze UniversityWuhan430100China Exploration and Development Research Institute of Jianghan Oilfield Company of Sinopec Wuhan430223China

The oil production predicted by means of the conventional water-drive characteristic curve is typically affected by large deviations with respect to the actual value when the so-called high water-cut stage is *** order to solve this problem,a new characteristic relationship between the relative permeability ratio and the average water saturation is *** comparing the outcomes of different matching methods,it is verified that it can well reflect the variation characteristics of the relative permeability ratio *** the new formula with a reservoir engineering method,two new formulas are derived for the water flooding characteristic curve in the high water-cut *** practicability is verified by using the production data of Mawangmiao and Xijiakou *** results show that the error between the predicted cumulative oil production and production data of the two new water drive characteristic curves is less than the error between the B-type water drive characteristic curve and the other two water drive characteristic *** is concluded that the two new characteristic curves can be used to estimate more accurately the recoverable reserves,the final recovery and to estimate the effects of water flooding.

关键词： Water flooding characteristic curve high water cut period production dynamic prediction recoverable reserves water flooding

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