天然气成藏过程再现分析技术及地质应用  

DISPLAYING AND ANALYZING TECHNIQUES OF GAS-RESERVOIR ACCUMULATION PROCESS AND THEIR GEOLOGICAL APPLICATIONS

作　　者：邹伟奇[1] 邹育良[2] 张学军[2] 

机构地区：[1]东北石油大学,黑龙江大庆163318 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2013年第2期27-35,共9页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家重点基础研究发展计划"973"项目"火山岩油气藏分布规律与资源预测"(2009CB219308)

摘　　要：建立天然气成藏过程再现分析技术,研究了松辽盆地徐家围子断陷不同类型气藏(6口井)的成藏过程。认为徐家围子断陷气藏存在4种成藏过程:只经历过烃类气成藏(卫深5、达深401);首先充注CO_2,然后烃气充注,最后成为烃类气藏(徐深1-203);烃类气和液烃首先成藏,然后CO_2驱走烃类气,最后成为CO_2气藏(芳深9);烃类气和CO_2一起成藏,只不过对不同井而言,两种气体成分所占比例不同,最后成为CO_2气藏(徐深19、徐深28)。The displaying and analyzing techniques of the gas-reservoir accumulation process are developed, and furthermore the processes for different types of the gas reservoir accumulation （ including 6 wells） in Xujiaweizi Fault Depression in Songliao Basin are studied. The achievements show that there are 4 kinds of the process： only enriched by the hydrocarbon gases （ Well Weishen 5 and Well Dashen 401 ） ; first filled by CO2 and then hydrocarbon gases, finally forms hydrocarbon gas reservoir （ Well Xushen 1-203 ） ; first accumulation of the hydrocarbon gases and liquid hydrocarbon, then the gas displaced away by CO2, finally forms CO2 reservoir （ Well Fangshen 9 ） ; contemporaneous reservoir accumulating of the hydrocarbon gases and CO2 , but for different wells, the proportions of the two kinds of gas are different and finally CO2 reservoir is formed （ Well Xushen 19 and Xushen 28 ）.

关 键 词：天然气成藏 包裹体 显微一激光拉曼光谱 逐层剥离 松辽盆地 

分 类 号：TE122.1[石油与天然气工程—油气勘探]