石油地质与工程2025，Vol.39Issue(6)：31-37,7.DOI:10.26976/j.cnki.sydz.202506006
川北地区大隆组海相页岩储层特征研究
Study on reservoir characteristics of marine shale in Dalong Formation of northern Sichuan area
杨滔 1李伟才 1黎明 1付小平 2王明筏 2熊明依1
作者信息
- 1. 中国石化河南油田分公司勘探开发研究院,河南 南阳 473000
- 2. 中国石化勘探分公司,四川 成都 610041
- 折叠
摘要
Abstract
The Permian marine mud shale reservoirs in the northern Sichuan area exhibit enormous develop-ment potential,yet current research on their reservoir characteristics remains relatively limited.By analyzing testing and logging data of the Permian Dalong Formation marine shale in this area,this study systematically investigates the organic geochemistry,mineral composition,physical properties,gas-bearing capacity,and pore structure characteristics of the shale,and summarizes the development patterns and features of the shale reservoir.The results indicate that the Dalong Formation shale is characterized by high organic matter con-tent,with the organic matter in an over-mature stage that has generated abundant gas.The shale contains high proportions of quartz and carbonate minerals,demonstrating favorable brittleness.Pore types are domi-nated by organic pores,with mesopores and micropores being the primary sizes.Additionally,the organic matter content significantly influences pore development and structure:higher organic matter content corre-lates with more developed organic pores,a greater proportion of mesopores and micropores,and a larger specific surface area,all of which enhance natural gas adsorption.This research clarifies the basic charac-teristics of the Permian marine shale reservoirs in Chuanbei,providing valuable guidance for subsequent shale gas exploration in the region.关键词
川北地区/大隆组/页岩储层/孔隙结构Key words
Northern Sichuan area/Dalong Formation/shale reservoirs/pore structure分类
天文与地球科学引用本文复制引用
杨滔,李伟才,黎明,付小平,王明筏,熊明依..川北地区大隆组海相页岩储层特征研究[J].石油地质与工程,2025,39(6):31-37,7.
