摘要
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。
As a result of long-term water injection development and interlayer heterogeneity,reservoir at high water cut period has serious interlayer pressure textural differences,a knowledge of which is the important basis of rational adjustment.In view of the lack of testing pressure data of well site,and the difficulty in single pressure data acquisition,a quantitative mathematical model of the high water-cut period stratum interlayer pressure textural difference was established with the percolation mechanics principle.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 each layer.And calculating results is close to the testing data.It is helpful for recognizing the development contradiction,and for providing the technical basis for reasonable adjustment.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第6期94-100,共7页
Journal of Southwest Petroleum University(Science & Technology Edition)
关键词
高含水期
压力结构差异
井底流压
压力系数比
注水量劈分
high water cut period
pressure textural difference
bottom hole flowing pressure
pressure coefficient ratio
water injection split
