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Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
Address:
No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
Tel:
028-86014709
028-86014500
Email:
cnpc-ngo@cnpc.com.cn
Issue:ISSN 1006-5539
CN 51-1183/TE

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Numerical Simulation Study on Production Performance of Horizontal Wells in Shale Gas Reservoir

Author of the article:Xie Chuan, Guo Xiao

Author's Workplace：State Key Lab for Oil and Gas Reservoir Geology and Development Engineering, Southwest Petroleum University

Key Words：Shale gas; Horizontal well; Staged fracturing; Slippage effect; Numerical simulation

Abstract：Shale gas reservoir has such characteristics as low porosity, low permeability, high content of adsorption gas and little natural production. Commercial gas can be exploited only by using horizontal well technology and some fracturing stimulation measures. In order to conduct simulation study on production performance of horizontal wells in shale gas reservoir accurately, comprehensively considered are such characteristics as gas desorption, diffusion, migration in matrix and slippage effect, applied is the Eclipse numerical simulation software to establish a corresponding single-well numerical model and conducted is sensitivity analysis on production effect factors. The results show that the slippage effect is beneficial to horizontal well production increase in the middle and later stage of development, the variation of natural fracture permeability, fracture diverting capacity, fracture spacing and fracture half-length has a great influence on horizontal well gas production and has very strong sensitivity, horizontal well staged fracturing parameters have an important influence on shale gas well production and it is necessary to optimize some corresponding fracturing parameters reasonably.