海相油气地质2017，Vol.22Issue(4)：35-43,9.DOI:10.3969/j.issn.1672-9854.2017.04.005
塔里木盆地下寒武统肖尔布拉克组白云岩储层特征及成因
Characteristics and Genesis of Dolomite Reservoir in the Lower Cambrian Xiaoerblak Formation, Tarim Basin
摘要
Abstract
Based on 13 wells and 2 outcrops,the characteristics and geneisis of dolomite reservoir of the Lower Cambrian Xiaoerblak Formation in Tarim Basin are studied. It is indicated that micritic dolomite, powder-fine crystal dolomite, algal dolomite(or microbial dolomite) are the main dolomite types of Xiaoerblak Formation. The development of porosity is related to lithofacies obviously. Through the analysis of rock features and multi-parameter geochemical characteristics, and combining with the geological background, the diagenesis sequence and the pore evolution history of dolomite reservoir in Xiaoerblak Formation were studied and the main controlling factors of dolomite reservoir were proposed as follows: Porous sediments of high-energy reef-shoal(mound) facies are the material basis of reservoir development;Dissolution of metrical water in early supergene stage is the key factor to reservoir formation; In addition, burial (hydrothermal) dissolution can improve the reservoir quality.关键词
塔里木盆地/下寒武统/肖尔布拉克组/白云岩/储层特征/成岩作用Key words
Dolomite/Reservoir characteristics/Diagenesis/Xiaoerblak Formation/Lower Cambrian/Tarim Basin分类
能源科技引用本文复制引用
严威,郑剑锋,陈永权,黄理力,周鹏,朱永进..塔里木盆地下寒武统肖尔布拉克组白云岩储层特征及成因[J].海相油气地质,2017,22(4):35-43,9.基金项目
本文受国家重大科技专项"大型油气田及煤层气开发"(2016ZX05004002,2016ZX05004004)资助 （2016ZX05004002,2016ZX05004004）
