大情字井油田黑46区块青一段储层成岩作用及其对物性的影响  

Diagenesis of the 1^(st) Member of Qingshangou Formation in Block Hei 46 of Daqingzijing Oilfield and Its Influence on Physical Property

作　　者：王安辉[1] 

机构地区：[1]中石油吉林油田分公司乾安采油厂,吉林松原138003

出　　处：《石油天然气学报》2012年第12期24-28,5,共5页Journal of Oil and Gas Technology

基　　金：国家自然科学基金项目(40872099)

摘　　要：根据铸体薄片、扫描电镜等资料,对大情字井油田黑46区块青山口组一段储层成岩作用特征及其对物性影响进行系统的分析。认为该区成分成熟度及结构成熟度中等偏低,储层成岩后生作用复杂多变,现今主要处于晚成岩A期;压实作用使储层原生孔隙大幅减小,胶结作用降低了原生孔隙,溶解作用有利于次生孔隙的形成,交代作用对原生孔隙起到了破坏性的作用,不稳定组分的成岩蚀变作用使孔隙度有所改善。Based on the data of cast thin section and scanning electron microscope analysis,the diagenetic characteristics of the 1st member of Qingshangou Formation and its influence on physical properties in Daqingzijing Oilfield were studied.It was believed that it had mid-low compositional maturity and textural maturity.The reservoir was mainly at late diagenesis stage A with complicated epidiagenesis.Compaction causes reduction of the primary porosity,while denudation is favorable for forming the secondary porosity.Metasomatism destructs primary pore.The unstable denudation of diagenesis improves the porosity.

关 键 词：成岩作用 原生孔隙 大情字井油田 青一段 

分 类 号：P618.13[天文地球—矿床学]