碳酸盐岩气藏注CO_(2)埋存及提高采收率机理研究进展  

Progress on mechanism of CO_(2) injection for storage and enhanced gas recovery in carbonate gas reservoir

作　　者：郭肖[1] 冯金 王鹏鲲 王作豪 陈祖伟 李涛[2] GUO Xiao;FENG Jin;WANG Pengkun;WANG Zuohao;CHEN Zuwei;LI Tao(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China;Puguang Branch,Zhongyuan Oilfield Company,SINOPEC,Dazhou 635000,China)

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]中国石化中原油田普光分公司,四川达州635000

出　　处：《断块油气田》2023年第6期888-894,共7页Fault-Block Oil & Gas Field

基　　金：四川省自然科学基金项目“高含硫碳酸盐岩气藏H_(2)S-CO_(2)回注埋存机理与提高采收率研究”(2022NSFSC0019);国家自然科学基金项目“四川盆地深层高含硫碳酸盐岩气藏立体酸压基础研究”(U21A201985)。

摘　　要：四川盆地碳酸盐岩气藏具有分布广、埋藏深、高温高压、含H2S、边底水活跃、非均质性强等特征,若能将CO_(2)注入到高含硫碳酸盐岩有水气藏中,可以达到CO_(2)埋存和提高天然气采收率双重目的;但常规实验和经典理论难以揭示其复杂机理。为此,文中分析了高含硫碳酸盐岩气藏注CO_(2)埋存及提高天然气采收率开采过程中存在的主要问题,详细论述了高含硫碳酸盐岩气藏注CO_(2)埋存及提高采收率机理研究进展,并提出了未来发展方向。Carbonate gas reservoirs in Sichuan Basin have the characteristics of wide distribution,large burial depth,high temperature,high pressure,high H2S content,active edge-bottom water and strong heterogeneity.If CO_(2) can be injected into carbonate water-bearing gas reservoirs with high sulfur content,the dual purposes of CO_(2) injection for storage and enhanced gas recovery can be achieved.However,it is difficult for conventional experiments and classical theories to reveal its complex mechanism.In this paper,the main scientific and technical problems in the process of CO_(2) injection for storage and enhanced gas recovery in carbonate gas reservoirs with high sulfur content are analyzed.The research progress of CO_(2) injection for storage and enhanced gas recovery of carbonate gas reservoirs with high sulfur content is discussed in detail,and the future development direction is proposed.

关 键 词：高含硫气藏 CO_(2)埋存 提高天然气采收率 相态 水-岩反应 

分 类 号：TE377[石油与天然气工程—油气田开发工程]