A well test model for stress-sensitive and heterogeneous reservoirs with non-uniform thicknesses
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- 作者：Liehui Zhang (1)
Jingjing Guo (1)
Qiguo Liu (1) - 关键词：Non ; uniform thickness ; stress ; sensitive ; heterogeneous reservoir ; transient well test ; type curve
- 刊名：Petroleum Science
- 出版年：2010
- 出版时间：December 2010
- 年：2010
- 卷：7
- 期：4
- 页码：524-529
- 全文大小：482KB
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Jingjing Guo (1)
Qiguo Liu (1)
1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, 610500, China - ISSN：1995-8226
文摘
In view of the anisotropy, heterogeneity and stress-sensitive permeability in low permeability reservoirs, an analytical well test model was established by introducing the concept of permeability modulus. This model considered the permeability stress-sensitivity, wellbore storage effect, and the skin effect. The perturbation technique and Laplace transformation were used to solve the mathematical model analytically in Laplace space, and the bottom-hole pressure type curves were plotted and analyzed in real space by using the Stehfest numerical inversion.