燕山地区高于庄组碳酸盐岩成岩作用与孔隙演化  

Diagenesis and Porosity Evolution of the Carbonate Rocks on Gaoyuzhuang Formation of Yanshan Area

作　　者：郑秀才[1] 王正允[1] 熊平[1] 张天君[2] 

机构地区：[1]长江大学工程技术学院,湖北荆州434020 [2]中石油青海油田分公司涩北作业公司,青海海西817000

出　　处：《石油天然气学报》2014年第12期1-6,8,共6页Journal of Oil and Gas Technology

基　　金：中国石油化工股份有限公司海相前瞻性研究项目(YPH08026);长江大学工程技术学院科研基金项目(13j0103)

摘　　要：通过对野外露头、浅井岩心、普通薄片、铸体薄片、阴极发光、碳氧同位素及流体包裹体等资料的分析,对高于庄组碳酸盐岩成岩作用及孔隙演化进行了综合研究,详细阐述了成岩作用的主要类型、产物及其对储层的影响。研究表明:成岩作用控制着孔隙的演化过程;孔隙演化经历了早期溶蚀-充填、表生溶蚀-充填和埋藏溶蚀-充填3个阶段;碳酸盐岩的原生孔隙消失殆尽,次生孔隙发育程度取决于晚期埋藏溶蚀作用和破裂作用;第2期主要成藏期始于三叠纪,略早于第3期充填-胶结作用,与孔隙演化的配适性较好。By analysis of a variety of data,such as the outcrop and cores of shallow well,common thin slices,cast thin sections,cathodoluminescence,carbon and oxygen isotopes and fluid inclusions,a comprehensive study was performed on carbonate diagenesis and pore evolution in Gaoyuzhuang Formation.The main types of diagenesis,its products,and its impact on the reservoir were analyzed.The results show that porosity evolution is controlled by diagenesis.The porosity evolution experienced three stages,such as early dissolution-filling,hypergene dissolution-filling and burial dissolution-filling.The primary carbonate pores almost vanish,the development of secondary pore depends on the burial dissolution and fracturing at the late stage.The time of secondary accumulation starts from the Triassic,which is slightly earlier than the third cement-filling,it is well eligible with porosity evolution.

关 键 词：高于庄组 成岩作用 孔隙演化 燕山地区 

分 类 号：P618.13[天文地球—矿床学]