石油实验地质2016，Vol.38Issue(4)：480-488,495,10.DOI:10.11781/sysydz201604480
四川盆地焦石坝构造区页岩有机质特征及其成烃能力探讨--以焦页1井五峰-龙马溪组为例
Characteristics and hydrocarbon significance of organic matter in shale from the Jiaoshiba structure, Sichuan Basin:A case study of the Wufeng-Longmaxi formations in well Jiaoye1
摘要
Abstract
Organic⁃rich shale samples were collected from the Upper Ordovician Wufeng-Longmaxi formations in the Jiaoshiba structure in the Sichuan Basin to carry out rock, kerogen and micro⁃fossil analyses. The biological recognition and organic petrologic analysis of hydrocarbon generation were carried out, and the hydrocarbon po⁃tential was discussed. Hydrocarbon precursor organisms in the high⁃maturity or over⁃mature Wufeng-Longmaxi shale mainly included acritarchs, alginite ( lamalginite and benthic algae) and zooclasts ( graptolite, chitinozoan and spicule) , which were the major components of formed organic matter. However, amorphous organic matter was the primary portion in the Wufeng-Longmaxi shale, and was dispersed in the mineral matrix as fined parti⁃cles. Shale gas in Jiaoshiba area was derived from hydrogen⁃rich alginite and macromolecular lipid polymer in graptolite tracheids. Abundant amorphous organic matter, especially plenty of pore⁃filling fine⁃grained bitumen, indicated that the source rocks have high hydrocarbon potential, which could form large shale gas fields.关键词
成烃生物/生烃潜力/焦石坝构造/五峰-龙马溪组/四川盆地Key words
hydrocarbon generation organism/hydrocarbon potential/Jiaoshiba structure/Wufeng-Longmaxi formation/Sichuan Basin分类
石油、天然气工程引用本文复制引用
申宝剑,仰云峰,腾格尔,秦建中,潘安阳..四川盆地焦石坝构造区页岩有机质特征及其成烃能力探讨--以焦页1井五峰-龙马溪组为例[J].石油实验地质,2016,38(4):480-488,495,10.基金项目
联合基金重点支持项目“古生界页岩含气性原生有机质控制作用研究”（ U1663202）和中国石化科技部项目“海相页岩超显微特征及与页岩气富集的关系”（ P15097）资助。 （）
