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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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Discussion on Evaluation Methodology of Flowing Ability of Shale Matrix

Author of the article:Li Wuguang, Zhong Bing, Guan Qing, Yang Xuefeng, Zhou Yuan

Author's Workplace：Exploration and Development Institute of Southwest Oil & Gas field Company, PetroChina

Key Words：Shale gas;Flowing ability; Mathematical model; Permeability; Diffusion coefficient

Abstract：Flowing ability of shale matrix is an important basis for shale gas well deliverability prediction, production decline analysis, EUR calculation, development plan formulation, etc. Analyzed are disadvantages of existing mathematic models for shale matrix flow based on mathematical physical equation, physical chemistrγ and physical simulation experiment. Established is an improved mathematical model for shale matrix flow, that is, a diffusional mathematical model considering the adsorption effect and determined is that the fusion coefficient shall be used as new parameters for evaluating shale matrix flow ability. Research suggests that this model cannot only evaluate the shale matrix flow ability, but also can he used in other fields of shale gas exploration and development, which can provide valuable theoretical guidance for high efficient shale gas exploration and development.