西安石油大学学报（自然科学版）2026，Vol.41Issue(3)：1-12,12.DOI:10.3969/j.issn.1673-064X.2026.03.001
贵州北部岩孔剖面灯影组白云岩储层特征及成岩作用
Reservoir Characteristics and Diagenesis of Dengying Formation Dolomite Yankong Profile of Northern Guizhou
摘要
Abstract
The Dengying Formation in the Yankong profile of the northern Guizhou Province has an old stratigraphic age,great burial depth,and complex diagenetic evolution.In order to effectively support the next exploration progress in this area,the fine characteriza-tion and diagenesis of the reservoir are studied in-depth by means of various methods such as rock thin section microscopic identifica-tion,scanning electron microscopy,porosity and permeability testing,cathodoluminescence,fluid inclusions,and geochemical analysis.The research results indicate that the reservoir lithology is mainly algal dolomite,sandstone debris dolomite,and grape lace-shaped dolo-mite;The storage space mainly consists of intercrystalline dissolution pores,intracrystalline dissolution pores,intragranular dissolution pores,moldic pores,and cracks,with overall physical properties of medium-low porosity and low permeability;Algal dolomite and grape lace-shaped dolomite are easy to maintain good primary structure,and recrystallization during burial can promote the development of in-tercrystalline pores in dolomite;The syngenetic dissolution,burial dissolution,and epigenetic dissolution further transform the reservoir and expand the storage space;The development of various types of fractures significantly improves the permeability of the reservoir and enhances the overall storage performance of the reservoir.This research achievement can provide important theoretical basis and techni-cal support for the evaluation of the Dengying Formation reservoir in the northern part of Guizhou Province,the prediction of favorable exploration areas,and the next exploration deployment.关键词
成岩作用/储层特征/白云岩/灯影组/岩孔剖面/贵州北部Key words
diagenesis/reservoir characteristics/dolomite/Dengying Formation/Yankong profile/northern Guizhou分类
能源科技引用本文复制引用
徐康,邓模,刘栩,潘文蕾,李风勋..贵州北部岩孔剖面灯影组白云岩储层特征及成岩作用[J].西安石油大学学报（自然科学版）,2026,41(3):1-12,12.基金项目
中国石化科技攻关项目"中上扬子地区过渡带油气成藏基础研究与有利区优选"(P24146) （P24146）
"中西部叠合盆地重点领域成藏富集规律与突破区带评价优选"(P24167) （P24167）
