盐穴地下储气库库址地质评价与建库区优选  

Study on Site Selection and Evaluation of Underground Gas Storage in Salt Cavern

作　　者：完颜祺琪[1,2,3] 冉莉娜[2,3] 韩冰洁[2,3] 蔡茂佳 李琦 

机构地区：[1]西南石油大学地球科学与技术学院,四川成都610500 [2]中国石油勘探开发研究院廊坊分院,河北廊坊065007 [3]中国石油油气地下储库重点实验室,河北廊坊065007 [4]中国石油大港油田分公司勘探公司,天津大港300280 [5]中国石油西气东输管道公司,上海浦东200122

出　　处：《西南石油大学学报（自然科学版）》2015年第1期57-64,共8页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家重大科技专项(2008ZX05049–02–004HZ);西南石油大学研究生创新基金课题(GIFSB1105)

摘　　要：盐穴地下储气库具有注采率高、短期吞吐量大、垫层气量低并可完全回收等优点。随着中国天然气工业的不断发展,更多的盐穴地下储气库将建成并投入运行,在天然气储备与调峰中发挥重要作用。中国天然气地下储气库建设相对滞后,目前已建成投产的盐穴储气库只有1座,尚未形成系统的盐穴储气库库址评价优选及方法,严重制约了中国盐穴储气库的发展建设。以金坛储气库为例,从构造特征、盐层发育情况、盐层埋深、盐层厚度、盐岩品位、盖层性质及厚度、密封性等方面,系统、定量的阐述盐穴地下储气库库址的优选评价指标,旨在为中国盐穴储气库库址的优选和评价提供可行方法和理论依据,对中国盐穴储气库的建设和发展具有深远的战略意义。The underground gas storages in salt caverns has the advantages of high injection-production ratio, large accom- modation capacity and low cushion gas content with recycling system. As the development of China＇s natural gas industry, more underground gas storages in salt cavern which play a signigicant role in natural gas reserves and peak shaving will be built and put into operation. However, China＇s underground gas storages construction lags behind, only one underground gas storages in salt caverns completed and put into operation. The system of evaluation and optimal site selection of under- ground gas storages in salt caverns has not formed, which severely restricted the development and construction of underground gas storages in salt caverns in China. Based on the characteristics of underground gas storage in salt cavern, we studied the optimization principle of storage site and then comprehensively evaluate the underground gas storage site. The optimization evaluation index for underground gas storage site has been elaborated systematically and quantitatively in respects of structural characteristics, development of salt deposit, buried depth of salt layers, thickness of salt beds, property and thickness of cap rock, tightness, condition of old wells and geographic location, which provides possible ways and theories to evaluate and optimize the underground gas storage site selection.

关 键 词：地下储气库 盐穴 库址 优选 地质评价 

分 类 号：TE132[石油与天然气工程—油气勘探]