Petroleum Science >2010,??Issue 4:??524-529 DOI: https://doi.org/10.1007/s12182-010-0103-z
A well test model for stress-sensitive and heterogeneous reservoirs with non-uniform thicknesses Open?Access
文章信息
作者：Zhang Liehui,Guo Jingjing and Liu Qiguo
作者单位：
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
投稿时间：2010-01-01
引用方式：Zhang, L., Guo, J. & Liu, Q. Pet. Sci. (2010) 7: 524. https://doi.org/10.1007/s12182-010-0103-z
文章摘要
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.
关键词
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Non-uniform thickness, stress-sensitive, heterogeneous reservoir, transient well test, type curve