海相油气地质2016，Vol.21Issue(2)：1-12,12.DOI:10.3969/j.issn.1672-9854.2016.02.001
塔里木盆地塔东地区下古生界碳酸盐岩储层特征与勘探领域
Characteristics and Exploration Domains of Lower Paleozoic Carbonate Reservoirs in Eastern Tarim Basin
刘伟 1沈安江 2柳广弟 3郑兴平 1陈娅娜 2张友3
作者信息
- 1. 中国石油大学 北京
- 2. 中国石油杭州地质研究院
- 3. 中国石油天然气集团公司碳酸盐岩储层重点实验室
- 折叠
摘要
Abstract
Exploration has made great progress in Lower Paleozoic carbonate rock in eastern Tarim Basin in recent years but confused reservoir types, controlling factors and spatial distribution regularity still are the technical problems so as to affect domain evaluation and well site deployment. Based on outcrops, cores and thin sections from 20 wells, and well logging and geochemical data, five types of reservoir are recognized in the eastern part of Tarim Basin, which include: (1) Ordovician Yijianfang-Upper Yingshan reef-shoal dissolved limestone reservoirs, (2) Ordovician Lower Yingshan-Penglaiba dissolved dolomitized reservoirs, (3) Cambrian platform margin bioherm-shoal dolostone reservoirs, (4) Upper Cambrian slope deep-water gravity-flow dolostone reservoir, and (5) Upper Sinian microbial bioherm-shoal dolostone reservoirs. The dissolved dolostone reservoirs and platform bioherm-shoal dolostone reservoirs are the most significant types of reservoirs in this area. Reef or bioherm-shoal and dissolution are the main controlling factors for reservoir development.Two present exploration domains and three risk exploration domains are evaluated, which provides technical support to petroleum exploration in this area.关键词
塔东地区/碳酸盐岩储层/礁滩体/溶蚀作用/勘探领域Key words
Carbonate reservoir/Reef-shoal facies/Dissolution/Petroleum exploration/Tarim Basin分类
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刘伟,沈安江,柳广弟,郑兴平,陈娅娜,张友..塔里木盆地塔东地区下古生界碳酸盐岩储层特征与勘探领域[J].海相油气地质,2016,21(2):1-12,12.
