油田压裂累积增产效果的测算方法

ASSESSMENT METHOD OF CUMULATIVE STIMUTATION RESULT OF FRACTURING

本文从递减曲线的研究出发,结合马岭油田压裂井的实际情况,研究了油井压裂前后产量均已处于递减,且为指数递减条件下的压裂增产规律,提出了油井压裂提高开采强度增加的油量及所提高的可采储量的计算方法。本方法的使用,改变了过去对压裂效果评价的不合理性。

Starting from the decline curve, in combining with the real fracturing wells in Maling oil feild, this paper disscusses the rule on increase in oil production when production is at exponential taper condition before and after fracturing. A calculation procedure of additional oil recovery and increased recoverable sesereves is presented after productivity is increased during fracturing. Unreasonable evaluation of fracturing result is improved with using the technique.