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Fluctuation of fracturing curves indicates in-situ brittleness and reservoir fracturing characteristics in unconventional energy exploitation

文献类型：期刊论文

作者Sun, Fuqiang1,2; Du, Shuheng1,2; Zhao, Ya-Pu1,2; Zhao YP(赵亚溥); Du SH(杜书恒); Sun FQ(孙富强)
刊名ENERGY
出版日期2022-08-01
卷号252页码:8
关键词Brittleness index Data -driven optimization Fracturing curve Micro-seismic data Unconventional reservoir Ashby plots
ISSN号0360-5442
DOI10.1016/j.energy.2022.124043
通讯作者Zhao, Ya-Pu(yzhao@imech.ac.cn)
英文摘要Reservoir brittleness is a key index to evaluate the fracability and to predict the fracturing characteristics in unconventional energy exploitation. Traditional brittleness indices could only be derived from labo-ratory experiments, which are far from the field conditions and may lead to deviations. In this paper, a fracturing-curve based in-situ brittleness evaluation method is proposed and the in-situ brittleness of Woodford Shale is derived under field stress and temperature conditions. Based on the analysis of real-time micro-seismic data, it is confirmed that the real-time fracturing characteristics can be known by observing the fluctuations in the fracturing curves. Results showed that the in-situ brittleness is much lower than that derived in laboratory experiments. About 78% of micro-seismic events happen at the extreme value and the fastest fluctuation of the fracturing curve. These provide guidance for accurate formulation and real-time optimization of exploitation scheme. (c) 2022 Elsevier Ltd. All rights reserved.
WOS关键词TENSILE-STRENGTH ; SHALE ; TOUGHNESS ; MECHANICS ; PRESSURE ; ROCKS
资助项目National Natural Science Foundation of China (NSFC)[12032019] ; National Natural Science Foundation of China (NSFC)[41902132] ; National Natural Science Foundation of China (NSFC)[11872363] ; PetroChina Innovation Foundation[2019D-5007-0214] ; Chinese Academy of Sciences (CAS) through the CAS Key Research Program of Frontier Sciences[QYZDJ-SSW-JSC019] ; CAS Strategic Priority Research Program[XDB22040401]
WOS研究方向Thermodynamics ; Energy & Fuels
语种英语
WOS记录号WOS:000800399600009
资助机构National Natural Science Foundation of China (NSFC) ; PetroChina Innovation Foundation ; Chinese Academy of Sciences (CAS) through the CAS Key Research Program of Frontier Sciences ; CAS Strategic Priority Research Program
源URL[http://dspace.imech.ac.cn/handle/311007/89489]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Zhao, Ya-Pu
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Fuqiang,Du, Shuheng,Zhao, Ya-Pu,et al. Fluctuation of fracturing curves indicates in-situ brittleness and reservoir fracturing characteristics in unconventional energy exploitation[J]. ENERGY,2022,252:8.
APA Sun, Fuqiang,Du, Shuheng,Zhao, Ya-Pu,赵亚溥,杜书恒,&孙富强.(2022).Fluctuation of fracturing curves indicates in-situ brittleness and reservoir fracturing characteristics in unconventional energy exploitation.ENERGY,252,8.
MLA Sun, Fuqiang,et al."Fluctuation of fracturing curves indicates in-situ brittleness and reservoir fracturing characteristics in unconventional energy exploitation".ENERGY 252(2022):8.

入库方式： OAI收割

来源：力学研究所

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