滇东地区筇竹寺组页岩气地质条件及有利区优选  

GEOLOGICAL CONDITIONS AND FAVORABLE AREA SELECTION OF SHALE GAS IN THE QIONGZHUSI FORMATION,EASTERN YUNNAN

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)

机构地区：[1]云南省一九九煤田地质勘探队,云南楚雄675000 [2]云南省煤炭产品质量检验站,云南曲靖655000 [3]云南省核工业二〇九地质大队,云南昆明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)。

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.

关 键 词：筇竹寺组 地质条件 有利区优选 滇东 云南 

分 类 号：TE132[石油与天然气工程—油气勘探]