石油实验地质Issue(1)：76-80,86,6.DOI:10.11781/sysydz20130113
南襄盆地泌阳凹陷烃源岩成熟度厘定及其意义
Determination of maturity for source rocks in Biyang Sag of Nanxiang Basin and its significance
摘要
Abstract
19 source rock samples of lacustrine facies have been collected from the Hetaoyuan Formation in 15 drilling wells in the Biyang Sag of the Nanxiang Basin, and their maturities have been determined by means of fluorescence alteration of multiple macerals (FAMM) technique. The vitrinite reflectance of source rocks from the Hetaoyuan Formation is obviously suppressed, and the suppression corrected value is from 0. 08% to 0. 39% . The level of vitrinite reflectance suppression is relatively higher when source rock quality is better. The maturity of 19 samples has entered oil window (EqVR from 0. 58% to 1. 29% ) instead of 0. 38% -1. 05% from vitrinite reflectance. According to the maturity of source rocks at different depth in 4 wells, paleogeothermal gra-dient is 36-45 ℃ / km, and the depth of threshold for oil generation is 1 800-1 400 m. The correct determina-tion of maturity for the source rocks from the Hetaoyuan Formation provides the basis to evaluate the potential of hydrocarbon reasonably.关键词
镜质体反射率/FAMM 技术/成熟度/烃源岩/泌阳凹陷/南襄盆地Key words
vitrinite reflectance/fluorescence alteration of multiple macerals (FAMM)/maturity/source rock/Biyang Sag/Nanxiang Basin分类
能源科技引用本文复制引用
李志明,张隽,余晓露,鲍芳,谢小敏,仰云峰,罗家群,朱景修..南襄盆地泌阳凹陷烃源岩成熟度厘定及其意义[J].石油实验地质,2013,(1):76-80,86,6.基金项目
中国石油化工股份有限公司科学技术研究开发项目(P08060)资助 （P08060）
