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摘要
介绍了页岩的储层特征,从页岩不同尺度渗流机理、CO2/CH4竞争吸附原理及CO2-水-页岩相互作用机理着手,分析了超临界CO2在强化页岩气开采技术中的作用与优势,最后指出了超临界CO2强化页岩气开采技术在技术经济性、设备研发以及环境风险等方面面临的挑战。
Abstract
The reservoir characteristics of shale is introduced.The role and advantages of supercritical CO2 in enhanced shale gas extraction technology are analyzed from the aspects of the fluid seepage mechanism at different scales,CO2/CH4 competitive adsorption principle and CO2-water-shale interaction mechanism in shale.The supercritical CO2 enhanced shale gas extraction technology faces challenges in terms of development economics,core technology mechanism and safety assessment of leakage risk monitoring and long-term storage.
关键词
超临界CO2
/
scCO2-ESGR
/
竞争吸附
/
渗流机理
/
页岩气
Key words
supercritical CO2
/
scCO2-ESGR
/
competitive adsorption
/
seepage mechanism
/
shale gas
Author summay
杨国栋(1986-),男,博士,副教授,研究方向为CO2地质封存与资源化利用及土壤、地下水污染调查与修复,guodongyang@wust.edu.cn;马鑫(1986-),男,硕士,高级工程师,研究方向为CO2地质封存与资源化利用,通讯联系人,maxinchegs@qq.com。
超临界CO2强化页岩气开采技术研究现状及展望[J].
, 2024, 44(3): 16-20 DOI:10.16606/j.cnki.issn0253-4320.2024.03.004
