%0 Journal Article
%T 川西坳陷孝泉–新场地区须四段致密砂岩储层特征及控制因素<br>Reservoir Characteristics and Main Control Factors of Xu4 Member Tight Sandstone in Xiaoquan-Xinchang Area of Western Sichuan Depression
%A 韩智英
%A 覃斌传
%A 田钧名
%A 曹勤明
%J Advances in Geosciences
%P 624-634
%@ 2163-3975
%D 2021
%I Hans Publishing
%R 10.12677/AG.2021.115058
%X 通过薄片鉴定、物性测试、扫描电镜、阴极发光等实验手段，对川西坳陷孝泉–新场地区须四段致密砂岩储层特征及控制因素进行了分析。结果表明：研究区须四段致密砂岩储层岩石类型以中粒及细粒的岩屑砂岩和岩屑石英砂岩为主，颗粒分选较好，磨圆度中等–较差，储集空间以粒间溶孔、粒内溶孔及铸模孔为主。储层的发育主要受沉积微相、碎屑组分和溶蚀作用等因素控制。强水动力沉积环境内发育的砂岩是形成储层的基础，高石英低岩屑的碎屑组成是形成储层的有利条件，成岩后期长石及岩屑的强烈溶蚀是改善储层质量的关键。<br />
By means of thin section identification, physical property test, scanning electron microscope and cathodoluminescence, the reservoir characteristics and controlling factors of tight sandstone of Xu4 Member in Xiaoquan-Xinchang area of Western Sichuan depression are analyzed. The results show that the rock types in tight sandstone reservoir of Xu4 Member in study area are mainly composed of medium and fine-grained lithic sandstone and lithic quartz sandstone, with good grain sorting and medium to poor roundness. The main reservoir space includes intergranular dissolved pore, intragranular dissolved pore and mold pore. The reservoir development is mainly controlled by sedimentary microfacies, clastic components and dissolution. Sandstone developed in strong hydrodynamic sedimentary environment is the basis of reservoir formation. Clastic composition of high quartz and low cuttings is the favorable condition for reservoir formation, and strong dissolution of feldspar and cuttings in late diagenetic stage is the key to improve reservoir quality.
%K 川西坳陷，须四段，致密砂岩，储层特征，控制因素<br>Western Sichuan Depression
%K Xu4 Member
%K Tight Sandstone
%K Reservoir Characteristics
%K Control Factors
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=42439