塔里木盆地下古生界高成熟干酪根生烃潜力的评估  

ASSESSMENT OF HYDROCARBON-GENERATING POTENTIALITY OF HIGH MATURE KEROGEN DERIVED FROMLOWER PALEOZOIC ERATHEM IN THE TARIM BASIN

作　　者：范善发[1] 周中毅[1] 解启来[1] 潘长春[1] 钱吉盛[1] 陈一平 

机构地区：[1]中国科学院广州地球化学研究所,中国科学院兰州地质研究所

出　　处：《地球化学》1996年第5期503-511,共9页Geochimica

基　　金：国家自然科学基金

摘　　要：塔里木盆地下古生界海相高成熟生油岩干酪根仍具有一定的生烃潜力，其产烃率－温度－时间关系研究表明，在最近１－２Ｍａ内凹陷区奥陶系生油岩向邻近的隆起区提供了大量烃类。The hydrocarbon-generating potentiality of high mature kerogens from Lower Paleozoic source rocks in the Tarim Basin has been investigated by thermo-gravimetric analysis, pyrolysis and pyrolysis-gas chromatography.The hydrocarbon-generating time-temperature relationship can not only predict the hydrocarbon-generating time at the certain temperature for kerogen in every stage of oil-generating phase, but also evaluate hydrocarbon-generating capacity of high mature kerogen in the last geological time. In the Tabei uplift of the Tarim Basin, LN5-29 of 0_1 and YM2-4 of 0_(2+3), both of which have geotemperature of 130℃, will release residual hydrocarbon of 90% in 69 Ma and 25 Ma respectively. In the depression, Odorvician source rocks with geotemperature of about 170℃,have supplied large amount of oil for nearby rises in the Quaternary 1-2Ma, according to the hydrocarbon-generaling time-temperature relationship.

关 键 词：塔里木盆地 干酪根 生烃潜力 油矿床 

分 类 号：P618.30.4[天文地球—矿床学]