IMECH-IR  > 流固耦合系统力学重点实验室
Numerical Simulation of Gas and Water Flow Mechanism in Hydraulically Fractured Shale Gas Reservoirs
Shen WJ(沈伟军); Xu YM; Li XZ; Huang WG; Gu JR; Shen WJ, Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
Source PublicationJOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
2016
Volume35Issue:APages:726-735
ISSN1875-5100
Abstract
The problem of the fracturing water remaining in hydraulically fractured shale gas reservoirs has become one of the major concerns in terms of gas productivity and operating costs. The fracturing water retention is influenced by reservoir properties and production parameters, such as matrix porosity and permeability, fracture porosity and permeability, Langmuir pressure and volume, diffusion coefficient, shut-in time, drawdowns and injection rate. In this study, a horizontal well with six-stage hydraulicfracturing treatment was constructed to understand the water retention and gas production performance in shale gas reservoirs. Gas diffusion, gas adsorption/desorption and Darcy flow as well as non-Darcy flow were considered in this model. The process of water retention and gas production performance was analyzed, and the effects of reservoir and production properties on this problem were performed. The results show that only 34% of the fracturing water can flow back to the surface, most of which remains in shale formations to interfere with gas production. The increasing of matrix porosity, fracture porosity, Langmuir pressure and drawdowns will reduce water retention while water retention in shale matrix will increase with the increasing of matrix permeability and Langmuir volume, and consequently impact gas production. But the trapped water and gas rate increase with the higher fracture permeability. Furthermore, the diffusion coefficient, shut-in time and injection rate do not have a significant effect on water retention and gas productivity. These results can provide insights into a better understanding of gas and water flow in the shale gas reservoirs and the effects of reservoir and production parameters onwater retention and gas production.
KeywordShale Gas Hydraulic Fractures Reservoir Properties Water Retention Gas Rate
Subject Area渗流力学,油气田开发
DOI10.1016/j.jngse.2016.08.078
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000388543900066
WOS KeywordShale gas; Hydraulic fractures; Reservoir properties; Water retention; Gas rate
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational Energy Technology Laboratory under U.S. Department of Energy Contract No. ESD14085 ; National Science and Technology Major Project of the Ministry of Science and Technology of China Project (NO. 50150503-12)
DepartmentLMFS海洋土力学(LHO)
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59789
Collection流固耦合系统力学重点实验室
Corresponding AuthorShen WJ, Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
Recommended Citation
GB/T 7714
Shen WJ,Xu YM,Li XZ,et al. Numerical simulation of gas and water flow mechanism in hydraulically fractured shale gas reservoirs[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2016,35(A):726-735.
APA Shen WJ,Xu YM,Li XZ,Huang WG,Gu JR,&Shen WJ, Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.(2016).Numerical Simulation of Gas and Water Flow Mechanism in Hydraulically Fractured Shale Gas Reservoirs.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,35(A),726-735.
MLA Shen WJ,et al."Numerical Simulation of Gas and Water Flow Mechanism in Hydraulically Fractured Shale Gas Reservoirs".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 35.A(2016):726-735.
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