摘要
塔里木盆地轮古西地区奥陶系地层受海西早期大幅度抬升影响,剥蚀厚度较大,古岩溶十分发育,仅存中晚奥陶世鹰山组及蓬莱坝组,并受岩性和地质构造控制,具有较好的储渗能力.通过对轮古西地区的地质背景、古岩溶状况进行了研究,探索了该地区古岩溶的形成机理、控制因素,并对其储渗能力进行了分析.
The Ordovician strata in Western Lungu, Tarim Basin is considerably eroded by the Early Hercynian uplifting, with well developed palaeokarst. The only outcropped strata are the Middle and Late Ordovician Yingshan and Penglaiba formations, which are controlled by lithology and structure, with capable reservoir and permeation. Based on the analysis of the palaeokarst with the geological background in the area, the forming mechanism and control factors, as well as the capacity of reservoir and permeation, are studied.
出处
《地质与资源》
CAS
2009年第4期309-313,共5页
Geology and Resources
基金
973计划项目"碳酸盐岩缝洞型油藏开发基础研究"(编号2006CB202400)
中国石油天然气股份有限公司塔里木油田分公司2006年科技招标项目"轮古地区岩溶储层分布规律研究"(编号041006060052)联合资助
关键词
奥陶系
古岩溶
储渗能力分析
塔里木盆地
Ordovician
palaeokarst
capacity of reservoir and permeation
Tarim Basin.