现代地质2017，Vol.31Issue(4)：791-801,11.
哈萨克斯坦Zanazor油田石炭系KT-Ⅱ碳酸盐岩层成岩作用与孔隙演化
Diagenesis and Porosity Evolution of Carboniferous KT-Ⅱ Carbonates in Zanazor, Kazakhstan
摘要
Abstract
The carbonates of KT-Ⅱ layer in Carboniferous are the main layer of exploration and development of Zanazor Oilfield.The research of diagenesis is of great significance to influence the pore evolution of reservoir.Based on the observation of thin sections,and geochemical analysis on carbon oxygen isotope,cathodoluminescence,and fluid inclusion,we expound the main diagenesis types,the diagenetic sequence and its influence on pore evolution of KT-Ⅱ layer in the study area,and draw the following conclusions:(1) The diageneses which have obvious effects on reservoir quality include compaction,pressolution,cementation,dissolution and cataclasis,etc.;(2) There are two kinds of diagenetic evolution pattern and pore evolution model:the sparry grain limestone in shoal and mud limestone in tidal fiat.Furthermore,the former can be subdivided into sparry foraminifera-fusulinida limestone and sparry arene-oolitic limestone;(3) The diagenesis is one of the main controlling factors of reservoir quality.The difference of rock types (controlled by sedimentary micro environment)determines the differentia in early diagenetic response,which affects the late diagenetic reconstruction,and controis the formation of differential reservoir.Therefore,in terms of the control on the differential distribution of reservoir performance,the diagenetic alteration which is on the basis of sedimentary and depositional conditions are of equal importance.关键词
扎纳若尔/石炭系/成岩作用/成岩序列/孔隙演化Key words
Zanazor/Carboniferous/diagenesis/diagenetic sequence/porosity evolution分类
能源科技引用本文复制引用
伊硕,黄文辉,金振奎,高白水,朱小二..哈萨克斯坦Zanazor油田石炭系KT-Ⅱ碳酸盐岩层成岩作用与孔隙演化[J].现代地质,2017,31(4):791-801,11.基金项目
国家科技重大专项(2011ZX05042-001.2011ZX05042-002). （2011ZX05042-001.2011ZX05042-002）
