新疆焉耆盆地油气运移方向综合地球化学分析  

Synthetical Geochemical Analysis of the Oil and Gas Migration Direction in the Yanqi Basin,Xinjiang

作　　者：卜翠萍[1] 汤达祯[1] 苏玉山[2] 南红丽[3] 马新海[1] 许浩[1] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中国石化石油勘探开发研究院,北京100083 [3]河南油田石油勘探开发研究院,河南南阳473132

出　　处：《现代地质》2006年第1期86-91,共6页Geoscience

基　　金：中国石化科技项目(P00014)

摘　　要：分析了新疆焉耆盆地侏罗系原油的物性、含氮化合物含量和储层自生伊利石的同位素年龄在纵向和横向上的变化规律,探讨了焉耆盆地侏罗系油气运移方向。由上述分析可知,该区原油密度、含氮化合物含量和自生伊利石K-Ar年龄在平面上和垂向上均呈现出规律性的变化,即:平面上自南而北这些参数逐渐降低,垂向上同一构造带内随埋深减小这些参数逐渐变小。由此表明焉耆盆地侏罗系油气运移方向在平面上是从南向北,即油气先充注宝南储层,然后依次注入宝中和宝北储层;在纵向上是从深层向浅层运移,从八道湾组向三工河组和西山窑组储层中运移聚集。This paper analyzes some geochemical information of Jurassic reservoir in the Yanqi basin, which includes crude oil physical property, pyrrolic nitrogen compounds and isotopic age of autogenetic illite, and also discusses the oil and gas migration direction. The result indicates that these geochemical parameters show a regular variation decreasing gradually from south to north in plane and from deep to shallow in the vertical. Based on this analysis, it is concluded that Jurassic oil and gas migrated from south to north in the lateral and from deep to shallow in the vertical： Oil and gas injected firstly into Baonan reservoir, secondly into Baozhong and Baobei reservoirs laterally, and migrated from Badaowan Formation to the reservoirs of Sangonghe Formation and Xishanyao Formation vertically.

关 键 词：焉耆盆地 原油物性 含氮化合物 自生伊利石同位素测年 油气运移 

分 类 号：TE122.1[石油与天然气工程—油气勘探]