Rate transient analysis for horizontal well passing through inner region of composite gas reservoir

被引：0

作者：

Jiang, Rui-Zhong ^{[1
]}

Gao, Yi-Hua ^{[1
]}

Sun, Zhao-Bo ^{[2
]}

Teng, Wen-Chao ^{[1
]}

Qiao, Xin ^{[1
]}

Li, Yuan ^{[1
]}

机构：

[1] School of Petroleum Engineering, China University of Petroleum (East China), Qingdao

[2] China National Offshore Oil Corporation (CNOOC) Limited Tianjin Branch, Tianjin

来源：

Natural Gas Geoscience | 2015年 / 26卷 / 09期

关键词：

Composite gas reservoir; Dimensionless rate curve; Horizontal well; Passing through the inner region; Rate transient analysis;

D O I：

10.11764/j.issn.1672-1926.2015.09.1773

中图分类号：

学科分类号：

摘要：

In the process of gas reservoir development, a composite reservoir may be formed due to acidification, formation pollution or reservoir geological characteristics. An unsteady flow mathematical model is established for horizontal well passing through the inner region of the composite gas reservoir, and the rate transient analysis(RTA)is also conducted. In order to solve the problem, Laplace transform, Muskat method, the superposition of point source and the principle of Duhamal are used to get the transient pseudopressure of horizontal well. On the basis of the transient pseudopressure, the transient rate of horizontal well in real space is obtained by the Stehfest numerical inversion method. The dimensionless rate curves are plotted, and the effects of the dimensionless inner area radius, skin factor, the mobility ratio, the storativity ratio on the dimensionless rate of horizontal well passing through the inner region are analyzed. ©, 2015, Science Press. All right reserved.

引用

页码：1773 / 1780

页数：7

共 19 条

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