Constraints of hydrodynamic conditions on gas reservoirs in Dongying depression and its enlightenment to CO2 storage target area

A large number of natural gas reservoirs in Dongying depression and its surrounding areas indicate that there are good conditions for CO2 geological storage in these areas. To optimize the target area suitable for CO2 storage, through data collection and comprehensive analysis of Dongying basin flow...

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Published inShuiwen Dizhi Gongcheng Dizhi Vol. 51; no. 4; pp. 33 - 40
Main Authors Baojian ZHANG, Chaobin GUO, Qingcheng HE, Lichao YANG, Yutong ZHU, Xinwen WANG, Zongyi LI
Format Journal Article
LanguageChinese
Published Editorial Office of Hydrogeology & Engineering Geology 01.07.2024
Subjects
co2 geological storage
dongying depression
hydrodynamic trap
natural gas reservoir
saline aquifers
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Summary:A large number of natural gas reservoirs in Dongying depression and its surrounding areas indicate that there are good conditions for CO2 geological storage in these areas. To optimize the target area suitable for CO2 storage, through data collection and comprehensive analysis of Dongying basin flow field, this study summarized the main controlling factors and occurrence modes of natural gas accumulation in Dongying depression and its surrounding areas with a buried depth of 500-1500 m, and analyzed the restrictive effect of underground hydrodynamic field on the formation of natural gas reservoirs. The results show the migration pathways of shallow gas reservoirs can be divided into lateral migration pathways and vertical migration pathways based on the characteristics and modes of underground fluid movement. The lateral type is mainly distributed in the high uplift belt at the edge of the depression, and the vertical type is mainly distributed in the depression area in the basin. Compaction flow is the main
ISSN:1000-3665
DOI:10.16030/j.cnki.issn.1000-3665.202402006