地质通报2016，Vol.35Issue(2)：221-230,10.
阿尔金山南缘侏罗系页岩气生烃及储集条件
Shale-gas hydrocarbon generation and accumulation conditions of ;the Jurassic strata in southern Altun Mountains
摘要
Abstract
Jurassic strata, which are well developed in southern Altun Mountains, have goo d oil and gas generation conditions;never⁃theless, no investigation and evaluation for shale gas have been carried out in this region. Based on field geological survey and sample test, the authors investigated the thickness and sedimentary environment of Jurassic shale and analyzed the geochemical and reservoir property conditions of shale gas. The results show that the total thickness of Jurassic mudstone is 158~250m with the largest single thickness up to 89 m. Sedimentary environment is deep lake and semi-deep lake depositional facies. Organic carbon content is 0.15%~7.96%with an average of 2.05%. Vitrinite reflectance is 1.02%~2.50%with an average of 1.41%. Kerogen types are mainly type Ⅱ1 and typeⅡ2. The shale layers also contain high content of brittle minerals (>43%), with effective reservoir space well developed in the shales. The comprehensive analysis indicates that the Jurassic shale in southern Altun Mountains has basic geological conditions for shale-gas generation and accumulation.关键词
阿尔金山南缘/侏罗系/页岩气/生烃条件/储集条件Key words
Altun Mountains/Jurassic/shale gas/hydrocarbon generation conditions/accumulation conditions分类
地质学引用本文复制引用
郭天旭,包书景,康志宏,张毅,徐秋枫,张聪..阿尔金山南缘侏罗系页岩气生烃及储集条件[J].地质通报,2016,35(2):221-230,10.基金项目
中国地质调查局项目 （）
