石油实验地质2018，Vol.40Issue(2)：233-243,11.DOI:10.11781/sysydz201802233
微生物结构对微生物白云岩孔隙特征的影响——以塔里木盆地柯坪地区肖尔布拉克组为例
Influence of microbial textures on pore characteristics of microbial dolomites:A case study of Lower Cambrian Xiaoerbulake Formation in Keping area,Tarim Basin
摘要
Abstract
Microbial texture is an important characteristic of microbial dolomites compared to conventional carbonate rocks.Thus,studying microbial texture is the key to understand the origin and distribution of microbial dolomites.We selected thrombolite dolomite,foam spongy dolomite and stromatolite dolomite samples of the Xiaoerbulake Formation in Keping area in the northwestern Tarim Basin to test their petrophysical properties and pore structures. The test results were correlated with corresponding microbial textures to analyze their influence on pore characteristics. These samples were divided into three groups with different intensities of diagenesis alteration in order to analyze its effects. The results showed that the pore structures of microbial dolomites were closely related to their microbial textures. Sedimentation served as the dominating factor of pore structures with its controls on microbial textures, while diagenesis,under the restriction of microbial textures,changed the pore system mainly on the basis of sedimentation.关键词
微生物结构/孔隙特征/微生物白云岩/肖尔布拉克组/柯坪地区/塔里木盆地Key words
microbial texture/pore characteristics/microbial dolomite/Xiaoerbulake Formation/Keping area/Tarim Basin分类
能源科技引用本文复制引用
余浩元,蔡春芳,郑剑锋,黄理力,袁文芳..微生物结构对微生物白云岩孔隙特征的影响——以塔里木盆地柯坪地区肖尔布拉克组为例[J].石油实验地质,2018,40(2):233-243,11.基金项目
国家科技重大专项(2017ZX05008-003-040)资助. （2017ZX05008-003-040）
