天然气与石油2018，Vol.36Issue(2)：83-88,6.DOI:10.3969/j.issn.1006-5539.2018.02.015
存在有限导流断层的油藏压力动态分析
Pressure Transient Behavior in Reservoirs with Finite-Conductivity Fault
摘要
Abstract
Scholars mainly considered the fault as no flow closed boundary at home and abroad,when using the existing well testing interpretation models to interpret the actual reservoir well test data with finite-conductivity fault boundary,the results of which are not always ideal. Based on the theory of fluid flow in porous media,a well testing model for wells located near a finite-conductivity fault in a two-zone, composite reservoir was established. The solution considered not only fluid flow across the fault but also transient flow within the fault which had been disregarded in all previous studies. The solutions for constant production rate were obtained by the point source function and the Laplace transform techniques. With the Stehfest numerical inversion algorithm method,the transient pressure type curves were analyzed and the model was verified with cases. The result showed that the greater the value of F CD,the more concave curve. The bigger the S fvalue,the more upward curve. When S fis large enough,the feature of closed fault is presented. This provides theoretical reference and technical support for the interpretation of well testing of similar reservoirs.关键词
有限导流断层/复合油藏/点源函数/试井模型/典型曲线Key words
Finite-conductivity fault/Composite reservoir/Point source function/Well testing model/Typical curve引用本文复制引用
曾杨,康晓东,谢晓庆,未志杰..存在有限导流断层的油藏压力动态分析[J].天然气与石油,2018,36(2):83-88,6.基金项目
国家科技重大专项"海上油田化学驱油技术"(2016 ZX 05025-003) （2016 ZX 05025-003）
中国海洋石油集团有限公司综合科研"海上多层稠油油藏化学驱交替注入技术研究"(YXKY-2014-ZY-03) （YXKY-2014-ZY-03）
