摘要
成藏过程精细解剖是油气富集规律和勘探区带优选研究的基础。群克构造志留系长石岩屑砂岩储层中发育有烃类及盐水包裹体。通过显微镜下荧光观察,储层中石英颗粒加大边的烃类包裹体荧光显示主要为淡绿—亮绿色和暗黄色,而方解石胶结物的烃类包裹体荧光显示主要为蓝色和暗蓝色。根据与烃类包裹体伴生的盐水包裹体均一温度法和地质综合分析,结果表明群克构造志留系储层发育2期油气充注,早期充注时间距今约为340 Ma,晚期距今约为230 Ma。
Fine analysis on hydrocarbon accumulation process is the basis for studying hydrocarbon enrichment laws and optimizing the favorable belt for the petroleum exploration. The hydrocarbon and brine inclusions are developed in Silurian feldspar lithic sandstone reservoir in Qunke structure. By means of the microscopic fluorescent observation,the fluorescences of the hydrocarbon inclusion around the quartz grains oversize boundary in the reservoir are mainly the faint-bright green and faint yellow; while the fluorescences of the hydrocarbon inclusion in the calcite cement are mainly the blue and faint blue. The homogenization temperature method and comprehensive geological analysis of the brine inclusions accompanying with the hydrocarbon inclusions show that two-period hydrocarbon fillings are developed in Silurian reservoirs of Qunke structure,the early filling time was about 340 Ma before the present,while the later time was 230 Ma before the present.
作者
谭万仓
TAN Wancang(College of the Earth Sciences,Northeast Petroleum University,Daqing 163318,China;Exploration and Development Research Institute of Daqing Oilfield Co Ltd.,Daqing 163712,China)
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2018年第4期38-43,共6页
Petroleum Geology & Oilfield Development in Daqing
基金
中国石油天然气股份有限公司重大科技专项"塔东天然气成藏理论及勘探配套技术研究"(2016E-0204)
关键词
塔里木盆地
群克构造
流体包裹体
油气成藏过程
rim Basin
Qunke structure
fluid inclusion
hydrocarbon accumulation process
作者简介
谭万仓，男，1982年生，工程师，在读博士，从事油气勘探部署研究工作。E-mail：tanwancang@petrochina.com.cn.
