摘要
根据薄片、地化分析、阴极发光、包裹体测温等技术,对玉北地区中-下奥陶统鹰山组碳酸盐岩的成岩作用类型、序列及其与孔隙演化的关系进行了详细研究。认为玉北地区中-下奥陶统鹰山组储集层经历了准同生白云石化、埋藏白云石化、三期溶蚀、三期胶结、充填和压实、压溶等主要成岩作用,其中对储集层孔隙发育起建设性作用的是白云石化和溶蚀作用。根据成岩作用的先后顺序以及成岩作用过程中孔隙的演化特点,总结了鹰山组的成岩序列及孔隙的演化规律。
Based on thin section,geochemical analysis,cathode luminescence and fluid inclusion,a detailed study of the diagenesis types and sequence of the lower-middle Ordovician Yingshan formation carbonate rocks and their relationships with porosity evolution in Yubei area was carried out.The results show the reservoir of the lower-middle Ordovician Yingshan formation in Yubei area is subjected to such diageneses as penecontemporaneous dolomitization,burial dolomitization,3 phase dissolution,3 phase cementation,filling,compaction and pressolution,among which the dolomitization and dissolution act as the significant effects on the reservoir.According to the order and porosity evolution characteristics in diagenesis,the diagenetic sequence and porosity evolution of Yingshan formation were summarized.
出处
《石油地质与工程》
CAS
2017年第1期12-16,共5页
Petroleum Geology and Engineering
基金
中国石油化工股份有限公司重大先导项目"塔里木盆地塔中-玉北地区油气富集规律研究与突破目标"(2013KTXD01)资助
关键词
玉北地区
鹰山组
成岩作用
孔隙演化
Yubei area
Yingshan formation
diagenesis
porosity evolution
作者简介
林新，工程师，1986年出生，2012年毕业于西南石油大学矿物岩石及矿床学专业，现从事碳酸盐岩沉积和储层研究。
