齐家古龙凹陷凝析油气的地球化学剖析与油源对比及其启示  

Geochemistry of condensate oil-gas of Qijia-Gulong sag and oil-source correlation:Its revelation

作　　者：申家年[1] 邓冰[1] 卢双舫[1] 

机构地区：[1]大庆石油学院地球科学学院,黑龙江大庆163318

出　　处：《地球化学》2007年第6期539-548,共10页Geochimica

基　　金：国家重点基础研究发展计划项目(2006CB202307)

摘　　要：油源对比常常并非易事,凝析油由于甾萜类生物标志化合物的贫乏这一特殊性,增加了其油源对比的难度。根据松辽盆地齐家古龙凹陷英51井凝析气层下伏有常规油气层的特点,先选择用反映油藏连通性的色谱指纹和具有示踪作用的单体烃同位素进行油油对比,证实了凝析气层的油气与下伏油气同源;在此基础上,根据源岩和原油色谱大量数据的统计,用姥鲛烷、植烷参数的差异性论证了英51井油气皆来自青山口组。It is difficult to make oil-source correlation, and the particularity of lacking steroid and diterpenoid biomarkers in condensate oil makes it more difficult. According to the characteristics of conventional oil and gas layers of condensate gas of Well Ying 51 in Qijia-Gulong sag in Songliao Basin, chromatographic fingerprints that can reflect the connectivity of reservoir and isotope composition of hydrocarbon monomers that has tracer role are chosen to contract the oil-oil correlation. It is approved that the oil in condensate pool and underlie oil come from the same source. On the basis of large amounts of data statisties about source rock and crude oil chromatography, it is the concluded that the hydrocarbon of Well Ying 51 comes from Qingshankou Formation using discrepancy of parameter between the pristine and phytane.

关 键 词：凝析气藏 油油对比 油源对比 松辽盆地 

分 类 号：P593[天文地球—地球化学]