中国岩溶2011，Vol.30Issue(3)：327-333,7.
轮南奥陶系潜山表层岩溶储层的分布特征
The distribution characteristics of the epikarst reservoir in Lunnan Ordovician buried hill
摘要
Abstract
Lunnan ancient buried hill is located in the central region of Lunnan low bulge of Tabei uplift, Tar-im basin. Ordovician Yingshan formation and Yijianfang formation are the major karst layers. The formation condition and the time of epigenic karstification of Lunnan ancient buried hill are very similar with Guilin karst in South China. With the study on the formation and distribution characteristics of epikarst in Lunnan ancient weathering crust and its influence factors, the following is gained in this paper. Epikarst belt,characterized by well developed karst fracture-cave system with certain connectivity, is range from 0 to 40m under the ancient weathering surface, which is the karst reservoir well developed part. The karst effective reservoir space is mainly corrosion pore, small-scale cave and corrosion fissure. The development of epikarst has close relationship with paleo-topography and paleo-hydrodynamic conditions. Under the different paleo-topography and paleo-hydrodynamic conditions, the thickness and karst shape of the epikarst, as well as scale and filling characteristics of karst fracture-cave system in the epikarst are different.关键词
潜山/奥陶系/表层岩溶带/古地貌/岩溶储层/塔里木盆地Key words
burial hill/ Ordovician/ epikarst/ paleo-topography/ karst reservoir/ Tarim Basin分类
能源科技引用本文复制引用
陈利新,潘文庆,梁彬,罗日升,张庆玉,高翔..轮南奥陶系潜山表层岩溶储层的分布特征[J].中国岩溶,2011,30(3):327-333,7.基金项目
中国石油天然气股份有限公司塔里木油田分公司科技项目“轮古潜山轮古7井区以东奥陶系古岩溶特征研究”(编号041007090097)、“麦盖提斜坡岩溶体系与储层建模研究”项目编号(041010120140)、中国地质调查局“中上扬子及邻区重点盆地地质地球物理综合调查”工作项目(121201120967-07) （编号041007090097）
