石油实验地质2017，Vol.39Issue(3)：417-422,6.DOI:10.11781/sysydz201703417
东海盆地西湖凹陷烃源岩成熟度厘定——FAMM分析的证据
Maturity determination of hydrocarbon source rocks in Xihu Sag: Evidence from fluorescence alteration of multiple macerals
摘要
Abstract
Vitrinite reflectance is one of the main indexes to determine the thermal maturity of hydrocarbon source rocks.Previous results indicated that vitrinite reflectance (Ro) is not only controlled by thermal maturity, but also affected by the type of organic matter of source rock.The hydrogen content of vitrinite controls the level of vitrinite reflectance suppression and influences Ro accuracy.The fluorescence alteration of multiple macerals (FAMM) can solve vitrinite reflectance suppression effectively.The thermal maturity of 10 source rock samples from the Pinghu Formation in the Xihu Sag of East China Sea Basin were analyzed by means of FAMM and vitrinite reflectance.Results showed that the vitrinite reflectance of hydrocarbon source rocks from the Pinghu Formation were suppressed to some degree and the suppression corrected value varies from 0.01% to 0.25%.For well TWT1 the present thermal maturity of source rocks from the Pinghu Formation was determined as 0.90%-1.41%Ro by FAMM, but 0.77%-1.21%Ro by vitrinite reflectance analyses.The study helps evaluate hydrocarbon potential in the Pinghu Formation.关键词
镜质体反射率/多组分荧光变化技术/成熟度/烃源岩/平湖组/西湖凹陷/东海盆地Key words
vitrinite reflectance/fluorescence alteration of multiple macerals (FAMM)/maturity/source rock/Pinghu Formation/Xihu Sag/East China Sea Basin分类
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张隽..东海盆地西湖凹陷烃源岩成熟度厘定——FAMM分析的证据[J].石油实验地质,2017,39(3):417-422,6.基金项目
中国石化科技部项目"西湖凹陷平湖组油气资源评价与区带优选"(G5800-13-ZS-KJB028)资助. （G5800-13-ZS-KJB028）
