Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Natural Gas and Oil》 2018-02
Add to Favorite Get Latest Update

Pressure Transient Behavior in Reservoirs with Finite-Conductivity Fault

Zeng Yang;Kang Xiaodong;Xie Xiaoqing;Wei Zhijie;State Key Laboratory of Offshore Oil Exploitation;CNOOC Research Institute Limited;  
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 FCD,the more concave curve. The bigger the Sfvalue,the more upward curve. When Sfis 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.
【Fund】: 国家科技重大专项“海上油田化学驱油技术”(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)
【CateGory Index】: TE33
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved