塔里木盆地北部上丘里塔格群致密灰岩微孔储层的发现及意义  

THE DISCOVERY OF COMPACTED LIMESTONE MICROPOROUS RESERVOIR IN THE UPPER QIULITAGE GROUP,THE NORTHERN TARIN BASIN AND ITS SIGNIFICANCE

作　　者：叶德胜[1] 

机构地区：[1]地质矿产部05项目工程处,贵阳550001

出　　处：《石油实验地质》1993年第2期174-184,共11页Petroleum Geology & Experiment

基　　金："七五"国家重点科技攻关项目"75-54-03"子项(塔里木盆地东北地区控油地质条件和盆地远景分析)下属"塔东北地区震旦系至第三系成岩研究"二级专题的部分研究成果

摘　　要：上丘里塔格群(下奥陶统)致密泥微晶灰岩是塔里木盆地北部重要油气勘探目的层之一。其储集空间类型属于以微孔隙为主的缝合线-微孔型非常规储层。徽孔成因以溶蚀作用,特别是深部溶蚀作用为主,这是我国新近发现的致密灰岩徽孔储层。这一发现具有重要意义,为塔北油气勘探提供了科学依据,开辟了我国碳酸盐岩储层的新类型。同时也为进一步研究微孔成因、演化等提供了条件。The compacted minimicritic limestones of the Upper Qiulitage Group( Lower Ordovi-cian) are one of the prospecting targets in the north Tarim Basin. The type of the reservoir pores is dominated by micropores, attributed to an unconventional type of suture-microp-ore reservoir. The micropores formed preponderantly under corrosion, particularly the deep corrosion. It is a compacted limestone reservoir with micropores discovered recently in the country, which would be significant for it provides scientific basis for petroleum exploration, and renew the types of carbonate rock reservoir in China. Meanwhile it makes the studies available on the origin and evolution of micropores.

关 键 词：塔里木盆地 上丘里塔格群 储集层 

分 类 号：P618.13[天文地球—矿床学]