塔里木盆地西南缘克孜苏胡木组沉积环境及成岩作用

朱忠德

doi:10.11743/ogg19920206

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塔里木盆地西南缘克孜苏胡木组沉积环境及成岩作用
SEDIMENTARY ENVIRONMENT AND DIAGENESIS OF KEZISUHUMU FORMATION IN SOUTHWEST MARGIN OF TARIM BASIN
1992年13卷第2期页码：175-181
网络首发：1992-06-25，

纸质出版：1992
DOI： 10.11743/ogg19920206
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朱忠德. 塔里木盆地西南缘克孜苏胡木组沉积环境及成岩作用[J]. 石油与天然气地质, 1992,13(2):175-181. DOI： 10.11743/ogg19920206.

Zhu Zhongde. SEDIMENTARY ENVIRONMENT AND DIAGENESIS OF KEZISUHUMU FORMATION IN SOUTHWEST MARGIN OF TARIM BASIN[J]. 1992, 13(2): 175-181. DOI： 10.11743/ogg19920206.

摘要

上震旦统克孜苏胡木组主要为近滨、前滨、藻坪和潮坪四个亚环境。其中二、四段的残余凝块石粉(泥)晶白云岩、粉泥晶白云岩等分别经历了白云石化作用、溶解作用、胶结作用和新生变形作用。溶解作用、白云石化作用为凝块石白云岩产生了有利的储集孔隙。物性资料显示

残余凝块石粉(泥)晶白云岩具有良好的储集性能。

Abstract

The Kezisuhumu Formation in the Upper Sinian is composed of carbonate rock and terrigenous detrital rock deposited in coast envirgnment

which could be subdivided into shoreface

foreshore

algal flat and tital flat subenvironment.Thormbolite-dolomitite in the algal flat and micro-dolomite in the tidal flat underwent dolomitization

dissolution

cementation and neomorphism.The porosity in the thormbolite-dolomitite was speedy de-clined by the cementation

but the reservoir spaces were produced by the dissolution

dolomitization and neomorphism.The analysis results of physical property for the thorm-bolite-dolomitite shows that the rock has good reservoir property.