| Fluctuation of fracturing curves indicates in-situ brittleness and reservoir fracturing characteristics in unconventional energy exploitation |
| Sun FQ(孙富强)1,2 ; Du SH(杜书恒)1,2; Zhao YP(赵亚溥)1,2
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| Corresponding Author | Zhao, Ya-Pu(yzhao@imech.ac.cn)
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| Source Publication | ENERGY
(IF:5.537[JCR-2018],5.747[5-Year]) |
| 2022-08-01
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| Volume | 252Pages:8 |
| ISSN | 0360-5442
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| Abstract | 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. |
| Keyword | Brittleness index
Data -driven optimization
Fracturing curve
Micro-seismic data
Unconventional reservoir
Ashby plots
|
| DOI | 10.1016/j.energy.2022.124043
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| Indexed By | SCI
; EI
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| Language | 英语
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| WOS ID | WOS:000800399600009
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| WOS Keyword | TENSILE-STRENGTH
; SHALE
; TOUGHNESS
; MECHANICS
; PRESSURE
; ROCKS
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| WOS Research Area | Thermodynamics
; Energy & Fuels
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| WOS Subject | Thermodynamics
; Energy & Fuels
|
| Funding Project | 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]
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| Funding Organization | 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
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| Classification | 一类
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| Ranking | 1
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| Contributor | Zhao, Ya-Pu
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| Citation statistics |
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| Document Type | 期刊论文
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| Identifier | http://dspace.imech.ac.cn/handle/311007/89490
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| Collection | 非线性力学国家重点实验室
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| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
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Recommended Citation
GB/T 7714 |
Sun FQ,Du SH,Zhao YP. Fluctuation of fracturing curves indicates in-situ brittleness and reservoir fracturing characteristics in unconventional energy exploitation[J]. ENERGY,2022,252:8.Rp_Au:Zhao, Ya-Pu
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| APA |
孙富强,杜书恒,&赵亚溥.(2022).Fluctuation of fracturing curves indicates in-situ brittleness and reservoir fracturing characteristics in unconventional energy exploitation.ENERGY,252,8.
|
| MLA |
孙富强,et al."Fluctuation of fracturing curves indicates in-situ brittleness and reservoir fracturing characteristics in unconventional energy exploitation".ENERGY 252(2022):8.
|
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