石油实验地质2016，Vol.38Issue(4)：423-428,6.DOI:10.11781/sysydz201604423
泥页岩中有机质的赋存形态与油气形成
Organic matter occurrence and hydrocarbon generation in shale
摘要
Abstract
The microscopic features of various shales showed that sedimentary organic matter and minerals mainly exist as an“enriched organic matter and mineral aggregation”or“lean organic matter and mineral matrix”. The simulations of hydrocarbon generation and expulsion in shale indicated that the difference of organic matter occurrence in shale controlled hydrocarbon generation and primary migration. Due to the heterogeneous distribution of “enriched organic matter and mineral aggregation”, the hydrocarbon generated, expelled and preserved at different stages showed different occurrence and migration features. When maturity ranges from 0.6%-1.0%Ro , oil is free or absorbed in the“enriched organic matter and mineral aggregation”. Poor liquidity restricts exploration potential. When Ro ranges from 1.0%-1. 3%, it is more favorable for shale oil exploration. The content of “enriched organic matter and mineral aggregation” determined the gas potential in shale during the high evolution stage. In view of the heterogeneity of the microstructure of sedimentary organic matter and inorganic minerals in source rocks, the generation, expulsion and retention of oil and gas should be regarded as a united process when exploring for shale gas.关键词
有机质/油气形成/页岩油气/泥页岩Key words
organic matter/oil and gas generation/shale oil and gas/shale分类
能源科技引用本文复制引用
徐旭辉,郑伦举,马中良..泥页岩中有机质的赋存形态与油气形成[J].石油实验地质,2016,38(4):423-428,6.基金项目
中国石化科技攻关项目（P14040）和国家科技重大专项（2016ZX05005－001－002）资助。 （）
