大庆油田升平储气库盖层密封性划分标准及评价  

Cap rock sealing-property classifying standard and evaluation of Shengping gas storage in Daqing Oilfiled

作　　者：舒萍[1] 高涛[1] 王海燕[1] 梁树义[2] SHU Ping;GAO Tao;WANG Haiyan;LIANG Shuyi(Exploration and Development Research Institute of Daqing Oilfield Co Ltd,Daqing 163712,China;No.6 Oil Production Plant of Daqing Oilfield Co Ltd,Daqing 163114,China)

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [2]大庆油田有限责任公司第六采油厂,黑龙江大庆163114

出　　处：《大庆石油地质与开发》2019年第5期272-276,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油天然气股份有限公司重大专项“深层天然气高效开发技术研究与应用”(110017333011)

摘　　要：盖层密封性是储气库密封性评价的一个重要内容,也是制定建库参数的重要依据。以升平储气库为例,通过盖层岩性、厚度分布、物性、微观孔喉结构对盖层密封性进行了定性评价,通过突破压力实验和测井参数分析,建立了升平储气库盖层突破压力计算模型,实现了对盖层密封性定量评价,并相应建立了该储气库盖层密封性划分标准。综合评价结果表明:升平储气库盖层密封性较好,密封级别属于强—较强级别。The sealing of the cap rock is the important index for evaluating the sealing of a gas storage and also the important reference for designing the parameters of the gas storage.Taking Shengping gas storage as an example,by means of the qualitative evaluations of the caprock sealing including the lithology,thickness distribution,physical properties,microstructures of the pore throat,and moreover with the help of the breakthrough pressure test and logging parameter analyses,the calculating model of the breakthrough pressure of the cap rock was established for Shengping gas storage,thus the quantitative evaluation of the cap rock sealing was realized,and furthermore the classifying standard of the cap rock sealing was built correspondingly.The results show that the sealing of the gas storage is much better and the sealed level has reached strong to relatively stronger levels.

关 键 词：储气库 盖层 密封性 突破压力 火山岩气藏 

分 类 号：TE33[石油与天然气工程—油气田开发工程]