高含水期油藏层间压力结构差异量化方法研究

由于长期注水开发和层间非均质性影响，高含水期油藏各小层层间压力结构差异严重，掌握差异状况是合理调整的重要依据。针对现场分层测压资料少，单层压力资料获取困难的情况，应用渗流力学原理建立了高含水期地层层间压力结构差异量化数学模型，模型的关键参数可以通过生产数据计算获得。枣园油田的实例验证表明，高含水油藏层间压力存在明显差异，该方法能够确定各小层的压力差异状况。量化计算结果和实测资料相接近，有利于认清开发矛盾，为合理调整提供技术依据。

Study on Quantification Method of Interlayer Pressure Textural Differenceof the Reservoir During High Water Cut Period

Abstract：As a result of long-term water injection development and interlayer heterogeneity，reservoir at high water cut periodhas serious interlayer pressure textural differences，a knowledge of which is the important basis of rational adjustment. In viewof the lack of testing pressure data of well site，and the difficulty in single pressure data acquisition，a quantitative mathematicalmodel of the high water-cut period stratum interlayer pressure textural difference was established with the percolation mechanicsprinciple. The key parameters of the model can be obtained by production data. The example in Zaoyuan Oilfield showed that：high water cut reservoir interlayer pressure is obviously different. The method can determine the pressure differences of eachlayer. And calculating results is close to the testing data. It is helpful for recognizing the development contradiction，and forproviding the technical basis for reasonable adjustment.