库车坳陷克拉苏构造带西部原油地球化学特征研究  

Geochemical Characteristics of Crude Oil from Western Kelasu Tectonic Belt in Kuqa Depression

作　　者：何海[1] 包建平[1] 肖飞[1] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学)长江大学地球环境与水资源学院,湖北武汉430100

出　　处：《长江大学学报（自科版）（中旬）》2013年第1期45-46,50,共3页Journal of Yangtze University(Nature Science Edition)

基　　金：国家"十五"重点科技攻关课题(2001BA605A02-03-02-04)

摘　　要：利用GC-MS(气相色谱-质谱法)对克拉苏构造带西部的原油样品中生物标志物特征进行了研究,研究表明,大北、大宛齐原油具有高姥植比(Pr/Ph),三环萜烷以C19(或C20)为主峰,由未知藿烷和重排类生物标志物相对含量较高的特征,推测上述地区原油可能为煤成油;克拉2、克拉3原油Pr/Ph较低,三环萜烷以C21为主峰,重排类生物标志物含量也较低,上述地区原油可能为湖相油。The characteristics of biomarker in crude oil from western Kelasu tectonic belt in Kuqa depression are analyzed by GC-MS.Comprehensive analysis of vaious biomarkers shows that the oils from Dabei and Dawanqi Oilfields have high Pr/Ph ratio,C19-tricyclic terpane or C20-tricyclic terpane as the main peak,the abundance of tetracyclic terpene alkyl and rearranged biomarker areobvious high,these geochemical characteristics indicate the oils from the two oilfields are coal-derived oils,the oils from Kela 2 and Kela 3 oilfields have lower Pr/Ph,C21-tricyclic terpane as the main peak,the abundance of tetracyclic terpene alkyl and rearranged biomarker is lower,these geochemical characteristics indicate the two oils are lacustrine oils.

关 键 词：克拉苏构造带西部 原油地球化学特征 重排类生物标志物 

分 类 号：TE122.1[石油与天然气工程—油气勘探]