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 ）.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
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)
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
natural gas reservoir accumulation
inclusion
microscopic-laser Raman spectrum
peeled layer by layer
Songliao Basin
