海拉尔盆地乌尔逊及贝尔凹陷烃源岩有机质丰度的恢复  

RESTITUTION OF ORGANIC ABUNDANCE OF THE HYDROCARBON SOURCE ROCKS IN THE WUERXUN AND THE BEIER SAGS,THE HAILAER BASIN

作　　者：姜福杰[1] 庞雄奇[1] 姜振学[1] 田丰华[1] 

机构地区：[1]中国石油大学盆地与油藏研究中心

出　　处：《石油实验地质》2008年第1期82-85,93,共5页Petroleum Geology & Experiment

基　　金：国家自然科学基金项目(40472078)

摘　　要：在综合分析已有有机质丰度恢复方法的基础上,对各种方法进行了系统的分类,并综合对比了各种方法的优缺点及适用条件,认为热解模拟实验方法是一种相对较好的有机质丰度恢复方法。利用该方法对海拉尔盆地乌尔逊凹陷和贝尔凹陷的5套源岩的有机碳进行了恢复,并对资源量进行了校正。结果表明：乌尔逊凹陷和贝尔凹陷的有机碳恢复系数分别在1.10-1.32和1.03-1.18之间,各套源岩的恢复系数并不一致;恢复后的总资源量增加了1.86×10^8t。不难看出,有机质丰度的恢复对于含油气盆地评价,具有十分重要的意义。对于源岩演化程度相对较高的沉积盆地进行评价,尤其应该重视有机质丰度恢复研究。The restitution methods of the organic abundance are classified systematically based on the comprehensive analyses of these methods, and the advantages and disadvantages, as well as the applicable conditions of these methods are comprehensively compared. The results show that the pyrolysis simulation experiment is a relatively better organic abundance restitution method. The organic carbon of the 5 sets of hydrocarbon source rocks from the Wuerxun and the Beier Sags, the Hailaer Basin has been restituted by using this organic abundance restitution method, and the resource amount has been calibrated. According to the results, the restitution coefficients of the organic carbon of the Wuerxun and the Beier Sags are 1. 1041. 32 and 1.0341. 18 respectively, with differences between various sets of the source rocks, and about 1.86× 10^8 t extra resources has been calculated after the restitution. So restitution of organic matter abundance is very important in correctly evaluating potential petroliferous basins, especially the sedimentary basins with relatively high mature source rocks.

关 键 词：有机质丰度 有机碳恢复系数 烃源岩 乌尔逊凹陷 贝尔凹陷 海拉尔盆地 

分 类 号：TE122.1[石油与天然气工程—油气勘探]