摘要
以巢湖地区龙潭组过渡相煤系页岩储层为例,通过扫描电镜与高压压汞、低温氮吸附等实验技术,探究龙潭组页岩储层纳米级孔隙、微裂隙的发育特征,并讨论其影响因素。实验结果表明:储层主要储集空间是黏土矿物孔隙与有机孔隙;孔径分布复杂,100 nm以下孔隙贡献了主要比表面积与体积分布;孔隙形态复杂,兼具多种孔隙形态特征。
Using samples from coal bearing strata Longtan formation in Chaohu area,the development characteristics of nanopores and micro-fractures were studied based on experimental methods including FE-SEM,mercury injection and low temperature nitrogen gas adsorption.The major reservoir space of shale reservoir in Longtan formation are the clay mineral pores and organic pores with strong capability of adsorption.The PSDs of reservoir are complex and pores smaller than 100nm contributed to the major specific surface area and pore volume.Pore shape is complex with various morphologieal characteristics.
作者
崇璇
赵迪斐
郭英海
郑德志
刘静
马卓娜
CHONG Xuan;ZHAO Di-fei;GUO Ying-hai;ZHENG De-zhi;LIU Jing;MA Zhuo-na(Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process,the Ministry of Education,Xuzhou 221008,China;School of Resources and Earth Science,China University of Mining and Technology,Xuzhou 221116,China;Coal Strategic Planning Research Institute,Coal Science Research Institute,Beijing 100013,China)
出处
《煤炭技术》
CAS
2018年第12期94-97,共4页
Coal Technology
基金
国家自然科学基金资助项目面上项目(41772130)
国家重点基础研究发展计划(973)资助项目(2012CB214702)
山西省煤基重点科技攻关项目(MQ201402)
教育部中央高校科研业务专项基金(2017CXNL03)
煤层气资源与成藏过程教育部重点实验室(中国矿业大学)开放基金资助项目(2015-007)
关键词
页岩储层
龙潭组
纳米孔
沉积环境
shale reservoir
Longtan formation
nanopres
sedimentary environment
