| 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([email protected]) |
| Source Publication | ENERGY
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| 2022-08-01 | |
| Volume | 252Pages:8 |
| ISSN | 0360-5442 |
| 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 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000800399600009 |
| WOS Keyword | TENSILE-STRENGTH ; SHALE ; TOUGHNESS ; MECHANICS ; PRESSURE ; ROCKS |
| WOS Research Area | Thermodynamics ; Energy & Fuels |
| 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] |
| 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 |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Zhao, Ya-Pu |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89490 |
| Collection | 非线性力学国家重点实验室 |
| 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 |
| 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 |
| 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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| Jp2022FA229_2022_Flu（1206KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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