CO2 saturated brine injected into fractured shale: An X-ray micro-tomography in-situ analysis at reservoir conditions

被引：3
|
作者：
Yu, Hongyan [1 ,2 ,5 ]
Zhang, Yihuai [3 ]
Lebedev, Maxim [3 ]
Wang, Zhenliang [1 ,5 ]
Ma, Jinfeng [1 ,5 ]
Cui, Zhihao [1 ,5 ]
Verrall, Michael [4 ]
Squelch, Andrew [3 ]
Iglauer, Stefan [6 ]
机构：
[1] Northwest Univ, Dept Geol, Natl & Local Joint Engn Res Ctr Carbon Capture &, Xian 710069, Shaanxi, Peoples R China
[2] CNPC, Res Inst BGP, Zhuozhou 072750, Peoples R China
[3] Curtin Univ, WA Sch Mines Minerals Energy & Chem Engn, 26 Dick Perry Ave, Kensington, NSW 6151, Australia
[4] CSIRO, Earth Sci & Resource Engn, 26 Dick Perry Ave, Kensington, NSW 6151, Australia
[5] Curtin Univ, Curtin Inst Computat, Computat Image Anal Grp, Perth, WA, Australia
[6] Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Joondalup 6027, Australia
来源：
APPLIED ENERGY SYMPOSIUM AND FORUM, CARBON CAPTURE, UTILIZATION AND STORAGE, CCUS 2018 | 2018年 / 154卷
关键词：
shale; live brine; fracture morphology; permeability; SUPERCRITICAL CO2; PERMEABILITY EVOLUTION; LABORATORY EXPERIMENTS; CARBON-DIOXIDE; DISSOLUTION; STORAGE; TEMPERATURE; SIMULATION; SEQUESTRATION; PRECIPITATION;
D O I：
10.1016/j.egypro.2018.11.021
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Fracture morphology and permeability are key factors in enhanced gas recovery (EOR) and Carbon Geo-storage (CCS) in shale gas reservoirs as they determine production and injection rates. However, the exact effect of CO2-saturated (live) brine on shale fracture morphology, and how the permeability changes during live brine injection and exposure is only poorly understood. We thus imaged fractured shale samples before and after live brine injection in-situ at high resolution in 3D via X-ray micro-computed tomography. Clearly, the fractures' aperture and connectivity increased after live brine injection. (C) 2018 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：125 / 130
页数：6
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