Fracture and pore structure dynamic evolution of coals during hydraulic fracturing

被引：0

作者：

Lu, Yiyu ^{[1
,2
]}

Wang, Li ^{[1
,2
]}

Ge, Zhaolong ^{[1
,2
]}

Zhou, Zhe ^{[3
]}

Deng, Kai ^{[1
,2
]}

Zuo, Shaojie ^{[1
,2
]}

机构：

[1] State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing,400044, China

[2] National & Local Joint Engineering Laboratory of Gas Drainage in Complex Coal Seam, Chongqing University, Chongqing,400044, China

[3] Postdoctoral Station of Safety Science and Engineering, Chongqing University, Chongqing,400044, China

来源：

Fuel | 2020年 / 259卷

关键词：

Pore structure;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Hydraulic fracturing is an effective method for producing coalbed methane. To better understand the evolution of the fracture and pore structure of coals that contain macro-fractures during hydraulic fracturing, we have performed a series of in-situ compression experiments under continuous injection liquid conditions and dynamically monitored the samples using nuclear magnetic resonance methods. The mechanism of fracture and pore structure dynamic evolution is identified in terms of spherical expansion theory. The total porosity increases dramatically within 10–120 min of the initial injection stage, and pore channels form. The number of micro-pores ( © 2019 Elsevier Ltd

引用

共 50 条

[21] Distribution Relationship of Pore Pressure and Matrix Stress during Hydraulic Fracturing
Zhao, Xinglong
Huang, Bingxiang
ACS OMEGA, 2021, 6 (45): : 30569 - 30579
[22] Effect of frequency and flow rate of pulsating hydraulic fracturing on fracture evolution
Li, Quangui
Wu, Xiaobin
Zhai, Cheng
Hu, Qianting
Ni, Guanhua
Yan, Fazhi
Xu, Jizhao
Zhang, Yuebing
Zhongguo Kuangye Daxue Xuebao/Journal of China University of Mining and Technology, 2021, 50 (06): : 1067 - 1076
[23] Mesoscopic law of stress and fracture evolution of coal seams hydraulic fracturing
Li Q.
Deng Y.
Hu Q.
Zhang Y.
Song M.
Liu J.
Shi J.
Meitiandizhi Yu Kantan/Coal Geology and Exploration, 2022, 50 (06): : 32 - 40
[24] An experimental study of fracture initiation mechanisms during hydraulic fracturing
Yan TieLi Wei and Bi Xueliang Key Laboratory of Enhanced Oil Gas RecoveryMinistry of EducationNortheast Petroleum UniversityDaqing HeilongjiangChina
Petroleum Science, 2011, 8 (01) : 87 - 92
[25] Pore structure in coals
Walker, Philip.L.
Mahajan, Om P.
Energy and Fuels, 1993, 7 (04): : 559 - 560
[26] PORE STRUCTURE IN COALS
WALKER, PL
MAHAJAN, OP
ENERGY & FUELS, 1993, 7 (04) : 559 - 560
[27] Effects of heating temperature on pore structure evolution of briquette coals
Gan, Qingqing
Xu, Jiang
Peng, Shoujian
Yan, Fazhi
Wang, Ruifang
Cai, Guoliang
FUEL, 2021, 296
[28] Experimental study on characterization hydraulic fracturing coal fracture network and evolution of fracture forming performance
Jiang C.
Fu Y.
Wang G.
Meitan Kexue Jishu/Coal Science and Technology (Peking), 2023, 51 (06): : 62 - 71
[29] Evolution of Wellbore Pressure During Hydraulic Fracturing in a Permeable Medium
Lakirouhani, Ali
MATHEMATICS, 2025, 13 (01)
[30] Fracture network engineering for hydraulic fracturing
Pettitt W.
Pierce M.
Damjanac B.
Hazzard J.
Lorig L.
Fairhurst C.
Gil I.
Sanchez M.
Nagel N.
Reyes-Montes J.
Young R.P.
Leading Edge (Tulsa, OK), 2011, 30 (08): : 844 - 853

← 1 2 3 4 5 →