年間 4 号発行
ISSN 印刷: 2151-4798
ISSN オンライン: 2151-562X
Indexed in
RESEARCH ON DYNAMIC CHANGE OF RESERVOIR PERMEABILITY BASED ON COUPLED PORE FLUID FLOW AND STRESS ANALYSIS
要約
Due to the challenge of complex problems in the petroleum engineering field, coupled pore fluid flow and stress analysis of reservoirs has become a focus of study. Based on rock mechanics and seepage mechanics theory, governing equations of the coupled pore fluid flow and stress were given for the injection and production of a tight sandstone reservoir. We considered the effect of reservoir temperature and pore pressure changes on the bulk strain of the sandstone skeleton; these further affect permeability. A mathematical model has been established for injection and production of a tight sandstone reservoir, which describes the dynamic changing of permeability as the variations of reservoir temperature, pore pressure, and bulk strain. The numerical simulation results of coupled pore fluid flow and stress in the injection and production of the reservoir better reflects the actual production situation by using Abaqus software, which has a significant impact on the oilfield development.
-
Wang Fakai, Liang Yunpei, Li Xuelong, Li Lei, Li Jiangong, Chen Yulong, Study on the change of permeability of gas-containing coal under many factors, Energy Science & Engineering, 7, 1, 2019. Crossref