深层低孔渗碎屑岩储层成岩作用与孔隙演化——以准噶尔盆地中部4区块头屯河组为例

Diagenesis and Porosity Evolution of Low Porosity and Permeability Clastic Reservoirs——A Case Study of Toutunhe Formation in Block 4,Central Junggar Basin

以准噶尔盆地中部4区块头屯河组致密砂岩储层为研究对象,通过常规薄片、荧光分析、扫描电镜、流体包裹体测温等方法,以不同期次沥青与成岩自生矿物间的显微接触关系为依据,建立储层无机-有机流体活动的时间序列,探讨储层成岩-油气充注演化过程。

Taking tight sandstone reservoir of toutunhe formation in block4,central Junggar Basin as the research object,by means of traditional thin section,fluorescence analysis,scanning electron microscopy and temperature measuring of fluid inclusions,and based on the microscopic contact relationship between different periods of bitumen and authigenic minerals,the time series of inorganic organic fluid activity was established,the evolution of reservoir diagenesis and hydrocarbon filling was discussed.