异常高压气藏常规产能方程评价方法研究  

The Research of Evaluation Method of Conventional Productivity Equationin Abnormal High Pressure Gas Reservoirs

作　　者：藤赛男[1] 梁景伟[1] 李元生[1] 张庆辉[1] 

机构地区：[1]中国石油大学石油工程学院,北京102249

出　　处：《油气井测试》2011年第6期15-16,19,共3页Well Testing

摘　　要：异常高压气藏由于原始地层压力高、有效应力变化范围大,储层具有很强的应力敏感性。在产能方程中,应该考虑应力敏感的影响。实际生产中,通常采用常规的产能方程对应力敏感进行预测。通过常规产能方程和应力敏感产能方程的比较,得到误差最小、适合于异常高压气藏的常规产能方程形式,并对随着产能变化的各种产能方程的误差梯度进行了评价,对异常高压气藏采取的产能评价方法提出了建议。Teng Sainan,LiangJingwei,Li Yuansheng,Zhang Qinghui(College ofPetroleum Engineering,China University ofPetroleum) Formations in abnormal high gas reservoir,forwhose pressure is high and range of effective stress is big,have strong stress sensitivity.The effluence of stress sensitivity should be considered when building productivity equation.The measurement of stress sensitivity is very difficult in reality sothat conventional productivity analysismethods are usually used to predict it.Compared conventional productivity equations to productivity equations,the conventional productivity equation whose error is the minimum and suiting for abnormal high pressure gas reservoirs is gained,and error gradients in different equationswith productivity changes are estimated,and suggestions formethod of productivity evaluation used in abnormal high pressure gas reservoirs are presented.

关 键 词：异常高压 产能方程 应力敏感 误差梯度 

分 类 号：TE37[石油与天然气工程—油气田开发工程]