IMECH-IR  > 非线性力学国家重点实验室
Complex fractures propagations of infill well based on reservoir stress evolution after long-time shale gas production
Zhu HY; Tang XH; Liu QY; Song YJ; Zhao YP(赵亚溥); Li KD; Xiao JL; McLennan JD
Source Publication53rd U.S. Rock Mechanics/Geomechanics Symposium
2019
Conference Name53rd U.S. Rock Mechanics/Geomechanics Symposium
Conference DateJune 23, 2019 - June 26, 2019
Conference PlaceBrooklyn, NY, United states
AbstractWith a specific case of Fuling shale gas reservoir, an integrated geomechanics workflow was proposed to investigate stress evolution during production and the complex hydraulic fractures propagation of infill well. In the integrated modelling, a natural fractures network was embedded in the geological model firstly. Secondly, a fracturing model was built to simulate the hydraulic fractures of parent wells. Thirdly, a flow-geomechanical coupling model was built to study the stress field evolution after long-time production.Finally, the complex hydraulic fractures propagation of the infill well was stimulated. It can be concluded from the simulation results that (1) the pre-existing complex fracture network exerts a considerable contribution on the pore pressure drop; (2) stress evolution is affected by the geomechanicalheterogeneity; (3) the horizontal principal stresses difference is found to increase, and a weak stress re-orientation appears after production; (4) the stress field changes are much smaller near the infill well; (5) the hydraulic fractures initiate preferentially at the perforations with the high density of natural fractures during the infill fracturing; (6) closing to the early producing well fractured region, the fractures complexity of the infill well reduces sharply, and that is well matched with the microseismic monitor results. Copyright 2019 ARMA, American Rock Mechanics Association.
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/85118
Collection非线性力学国家重点实验室
Affiliation1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan, China
2.State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
3.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan, China
4.SINOPEC Jianghan Oilfield Company, Wuhan, Hubei, China
5.Department of Chemical Engineering, University of Utah, Salt Lake, Utah, United States
Recommended Citation
GB/T 7714
Zhu HY,Tang XH,Liu QY,et al. Complex fractures propagations of infill well based on reservoir stress evolution after long-time shale gas production[C]53rd U.S. Rock Mechanics/Geomechanics Symposium,2019.
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