地质通报2016，Vol.35Issue(2)：204-210,7.
柴达木盆地北缘侏罗系页岩气地质条件
Geological conditions of the Jurassic shale gas on the northern mar- gin of Qaidam Basin
摘要
Abstract
Jurassic shale is one of the main hydrocarbon source rocks in Qaidam Basin and possesses the geological conditions for the formation of shale oil and gas. Eleven samples collected from the surface outcrops of Jurassic shale near some coal mines on the north⁃ern margin of Qaidam Basin such as Yuqia, Dameigou, Xiaomeigou, Kaiyuan, Lvcaogou and Datouyang. The authors carried out sin⁃gle multi-parameter experimental analysis of these samples and investigated the relationship between the organic geochemstry, petro⁃physical properties and gas content of lacustrine shale. On such a basis, the shale gas resource evaluation parameter system was estab⁃lished. The results show that the northern margin of Qaidam Basin was characterized by shallow lake-semi-deep lake lacustrine sed⁃iments in Jurassic, with well-developed fractures. During that time, shale was rich in organic matter, and had such characteristics as low porosity, low permeability, low maturity, low brittleness, and high gas content, thus having geological conditions for the forma⁃tion of shale oil and gas. Further exploration and development of Jurassic shale should choose shale gas areas with high formation pres⁃sure coefficient, relatively favorable storage conditions and high content of brittle minerals.关键词
柴达木盆地/侏罗系/页岩气/含气性Key words
Qaidam Basin/Jurassic/shale gas/gas content分类
天文与地球科学引用本文复制引用
任收麦,包书景,张毅,潘洪峰,郭天旭,周志..柴达木盆地北缘侏罗系页岩气地质条件[J].地质通报,2016,35(2):204-210,7.基金项目
中国地质调查局项目 （）
