川西南峨边先锋剖面震旦系灯影组储层特征  

Characteristics of the Sinian Dengying Formation Reservoir in Ebianxianfeng Section, Southwestern Sichuan Basin

作　　者：林雪梅 王旭[1] 朱联强 

机构地区：[1]成都理工大学,油气地质及开发工程国家重点实验室,四川成都

出　　处：《自然科学》2019年第3期237-246,共10页Open Journal of Nature Science

摘　　要：本文以四川乐山峨边先锋剖面震旦系灯影组为研究对象,基于该区灯影组的岩石学特征、储集空间类型、成岩作用特征等研究,利用野外勘探,岩石薄片观察等方法,研究该地区的岩石学特征、储集空间特征及成岩作用特征。研究区灯影组的主要岩石类型为:泥晶白云岩、砂屑泥亮晶云岩、藻粘结云岩、藻叠层云岩、葡萄花边状云岩、硅化泥晶白云岩。主要的储集空间类型有:格架孔、晶间溶孔、葡萄花边构造残余孔以及裂缝。研究区灯影组时代老,成岩作用多样,成岩过程复杂,经历了各种成岩流体的叠加、改造形成现今的储层面貌。研究认为,灯影组主要的成岩作用类型有:压实压溶作用、胶结充填作用、白云石化作用、溶蚀作用、硅质交代作用、重结晶作用。In this paper,the Sinian Dengying Formation of the Pioneer Section of the Leshan Mountain in Si-chuan Province is studied.Based on the petrological characteristics,reservoir space type and dia-genesis characteristics of the Dengying Formation in this area,using the methods of field explora-tion and observation of rock fragments,the petrological characteristics,reservoir spatial charac-teristics and diagenesis characteristics of the area are studied.The main rock types of the Dengying Formation in the study area are:mud-crystal dolomite,sand-grain mud,bright-grained cloud,algae-bonded cloud,algae,cloud,grape-like cloud,silicified muddolomite.The main types of res-ervoir space are:grid pores,intercrystalline pores,residual pores of grape lace structures,and cracks.The Dengying Formation of the study area is old,with diverse diagenesis and complicated diagenesis process.It has undergone superposition and transformation of various diagenetic fluids to form the current reservoir surface.According to the research,the main diagenesis types of Dengying Group are:compaction and pressure dissolution,cementation filling,dolomitization,dissolution,siliceous metasomatism and recrystallization.

关 键 词：峨边先锋 灯影组 岩石学特征 储集空间 成岩作用 

分 类 号：P61[天文地球—矿床学]