地质通报2016，Vol.35Issue(2)：250-259,10.
柴达木盆地鱼卡凹陷侏罗系泥页岩地球化学特征及储集条件--以柴页1井为例
Organic geochemistry characteristics and reservoir conditions of Ju- rassic shale in Yuqia depression of northern Qaidam Basin：A case study of Chaiye-1 well
摘要
Abstract
Yuqia depression in northern Qaidam Basin, as a potential continental shale gas exploration target of Northwest China, is a sedimentary center of Jurassic lacustrine strata with thick dark mudstone and shale layers. Based on such means as the analysis of total or⁃ganic carbon (TOC), hydrogen index (HI), vitrinite reflectance (Ro), porosity and permeability of shale, scanning electron microscope analysis (SEM), mineral composition and isothermal adsorption features of cores from the well Chaiye-1, the authors investigated natu⁃ral gas reservoir forming conditions of Yuqia depression. The assessment results show that the organic types and maturity are favorable for the development of organic-matter pores and microfractures. The gas content of Dameigou Formation shale is high because of high TOC content. Clay mineral content has hindered the development of the cracks of the shale but accelerated its adsorption capacity. The shale of the Middle Jurassic Dameigou Formation is thus a significant target of the shale gas exploration in northern Qaidam Basin.关键词
鱼卡凹陷/页岩气/地球化学/储集条件Key words
Yuqia depression/shale gas/geochemistry/reservoir conditions分类
天文与地球科学引用本文复制引用
李浩涵,任收麦,郭天旭,王胜建,周志,徐秋枫..柴达木盆地鱼卡凹陷侏罗系泥页岩地球化学特征及储集条件--以柴页1井为例[J].地质通报,2016,35(2):250-259,10.基金项目
中国地质调查局项目 （）
