西南石油大学学报（自然科学版）Issue(6)：1-8,8.DOI:10.11885/j.issn.1674-5086.2014.04.30.04
滇黔北探区YQ1井页岩气的发现及其意义
Significance of Discovery of Shale Gas From Well YQ-1 in Northern Yunnan-Guizhou Provinces,China
摘要
Abstract
The high quality shale of Wufeng-Longmaxi formations that was encountered by well YQ-1 during the drilling pro-cess is characterized by thick single layer,high TOC content,high organic matter maturity,and well developed microscopic pore and cracks. The analysis results reveal that the absorbed methane content of core shale from well YQ-1 increases with the rise of burial depth,formation pressure,content of organic matter and clay minerals. The gas in place(GIP)of the shale reservoirs ranges from 1.0 to 3.0 m3/t,indicating that the shale horizon of the basal of Longmaxi formation and Wufeng forma-tion is the first target stratum with commercial development value. The marine gas shale in Southern China is characterized of“intensive reformation,and high maturity”,and because the occurrence of shale gas resources is characterized by the control factors on distribution,gas pool,and sweet pot that are controlled by tectonics,storage condition and physical properties of rocks respectively. The emergency mission on shale gas exploration is to identify the sweet spot areas that are characterized by organic richness,abnormal formation pressure,and good development of brittle microscopic pore and cracks. The sweet spots of marine shale gas often develop in broad syncline far from faults that reach the surface and is of weak tectonic deformation, good cap rock. The strategy of marine shale gas exploration and development in Southern China should follow the sequences of filtering sweet spots firstly,and then setting demonstration area,finally carrying out large-scale development.关键词
滇黔北探区/页岩气/龙马溪组/页岩气赋存/评价优选Key words
northern YunNan-Guizhou provinces/shale gas/Longmaxi Formatiom/shale gas occurrence/evalution and selective preference分类
能源科技引用本文复制引用
梁兴,叶熙,张朝,张介辉,舒红林..滇黔北探区YQ1井页岩气的发现及其意义[J].西南石油大学学报（自然科学版）,2014,(6):1-8,8.基金项目
国家重大科技专项（2012ZX05018-006）；中国石油集团公司重大专项（2014F-4702）；教育部博士点基金（20125121130001）。 （）
