川南地区沙溪庙组浅层致密砂岩沉积微相及储集物性  

Sedimentary facies and physical property of shallow tight sandstone in Shaximiao Formation in southern Sichuan Basin

作　　者：罗炫[1] 陈克勇[2] 雷一文[1] 刘文磊[1] 崔靖 唐迅 聂焕然 Luo Xuan;Chen Keyong;Lei Yiwen;Liu Wenlei;Tang Xun;Nie Huanran(Shuna Gas Field,Southwest Oil and Gas Field Co.,Ltd.,PetroChina,Luzhou 646000;College of Energy Resources of Chengdu University of Technology,Chengdu 610059)

机构地区：[1]中国石油西南油气田分公司蜀南气矿,四川泸州646000 [2]成都理工大学能源学院,四川成都610059

出　　处：《石化技术》2023年第10期186-188,共3页Petrochemical Industry Technology

基　　金：中石油西南油气田分公司2022年勘探综合研究项目(XNS蜀南矿JS2022-253)。

摘　　要：在野外剖面、钻井取芯、镜下薄片观察的基础上,结合岩石学、沉积构造和测井曲线特征等沉积相标志,对川南地区沙溪庙组沉积微相分布及演化进行了系统分析。认为下沙溪庙组由下向上分三个沉积旋回,分别对应浅水三角洲前缘-平原-前缘沉积环境,上沙溪庙组由下向上分四个沉积旋回,第一旋回由下部的三角洲前缘过渡到上部的三角洲平原,第二、三、四旋回对应曲流河沉积环境。On the basis of field profile,drilling coring and microscopic thin section observation,combined with sedimentary facies indicators such as petrology,sedimentary structure and logging curve characteristics,this paper systematically analyzes the distribution and evolution of sedimentary microfacies of Shaximiao Formation in southern Sichuan.It is considered that the lower Shaximiao Formation is divided into three sedimentary cycles from bottom to top,corresponding to the shallow water delta front plain front sedimentary environment respectively.The upper Shaximiao Formation is divided into four sedimentary cycles from bottom to top.The first cycle transits from the lower delta front to the upper delta plain,and the second,third and fourth cycles correspond to the meandering river sedimentary environment.

关 键 词：川南地区 浅层致密砂岩 沉积微相 储集物性 

分 类 号：P618.13[天文地球—矿床学]