摘要
基于滇东地区筇竹寺组有机地化特征、储层特征和含气性特征。筇竹寺组黑色页岩,目的层主体厚度200m~300m;有机质类型Ⅰ-Ⅱ_(1)型,有机质成熟度处于成熟-高成熟演化阶段;有机碳含量0.07%~7.13%,优质页岩厚度大,主体在40m~80m;石英含量平均值44.84%~50.76%,主要发育有机质纳米孔、晶间孔、溶蚀孔和黏土矿物层间缝;已有钻井总含气量平均值0.05m^(3)/t~0.54m^(3)/t,气体组分中甲烷平均含量23.29%~56.84%,含气性差;预测有利区7个、面积6165km^(2)。
Based on the organic geochemical,reservoir,and gas-bearing characteristics of the Qiongzhusi Formation in eastern Yunnan,the black shale of the Qiongzhusi Formation has a main thickness of 200-300 m.The organic matter is of type Ⅰ-Ⅱ_(1),with maturity ranging from mature to highly mature.The total organic carbon content is 0.07%-7.13%,and the high-quality shale thickness is 40-80 m.Quartz content averages 44.84%-50.76%,with organic nanopores,intergranular pores,dissolution pores,and clay mineral interlayer fractures being the main pore types.The average gas content of existing wells is 0.05-0.54 m^(3)/t,with methane content ranging from^(2)3.29% to 56.84%,indicating poor gas-bearing properties.Seven favorable areas,covering 6,165 km^(2),were predicted.
作者
李遇
胡琳
黄磊
刘菁
LI Yu;HU Lin;HUANG Lei;LIU Jing(Yunnan Coalfield Geological Exploration Team No.199,Chuxiong 675000;Yunnan Coal Product Quality Inspection Station,Qujing 655000;No.209Geological Brigade of Yunnan Nuclear Industry,Kunming 650032)
出处
《云南地质》
2025年第1期15-18,共4页
Yunnan Geology
基金
云南省发展和改革委员会(云发改投资[2019]292号-2)。
关键词
筇竹寺组
地质条件
有利区优选
滇东
云南
Qiongzhusi Formation
Geological Conditions
Favorable Area Selection
Eastern Yunnan
Yunnan
作者简介
李遇(1991-),男,陕西渭南市人,地质工程师,从事煤层气、页岩气等非常规天然气地质研究。
