川中震旦系灯影组碳酸盐岩成岩作用及储层孔隙演化  

Diagenesis and Pore Evolution of Carbonate in Sinian Dengying Formation in Central Sichuan Province

作　　者：莫静[1] 王兴志[2] 谢林[2] 周正[1] 林刚[1] 熊剑文[1] 

机构地区：[1]西南石油大学资源与环境学院,四川成都610500 [2]油气藏地质及开发工程国家重点实验室(西南石油大学) 西南石油大学资源与环境学院,四川成都610500

出　　处：《石油天然气学报》2013年第8期32-38,0+5,共7页Journal of Oil and Gas Technology

摘　　要：以四川盆地中部震旦系灯影组(Z2d)碳酸盐岩为研究对象,应用宏观与微观分析技术,对其成岩作用、成岩演化序列、储层孔隙演化及其特征进行了详细研究。研究区常见的成岩作用有:压实压溶作用、胶结作用、充填作用、硅化作用、重结晶作用和溶蚀作用。其中对储层孔隙发育起建设性作用的主要有重结晶作用和溶蚀作用,起破坏性作用的主要有压实压溶作用、胶结作用、充填作用和硅化作用。讨论了各种成岩作用对储层发育的影响。根据成岩作用的先后顺序以及成岩作用过程中孔隙演化特点,总结了灯影组的成岩序列及孔隙的演化规律。The diagenesis,diagenetic evoluation,reservoir pore evoluation and characteristics were analyzed in detail by using macro and micro methods and using carbonate in Dengying Formation of Central Sichuan Basin as object of study.The common diageneses in the studied area were compaction,pressolution,cementation,packing,silicatization,heavy crystallization and denudation.Among those,heavy crystallization and denudation were constructive for reservoir development,however,compaction,pressolution,cementation and packing and silicatization were destructive.The influences of diageneses on the formation of reservoirs are discussed.Finally,according to the order of diagenesis and pore evoluton characteristics in diagenesis,diagenetic sequence and pore evolution are summarized in Dengying Formation.

关 键 词：川中 灯影组 成岩作用 孔隙演化 

分 类 号：P618.13[天文地球—矿床学]