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| 轮南奥陶系潜山表层岩溶储层的分布特征 | |
| 引用本文： | 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. |
| 作者姓名： | 陈利新 潘文庆 梁彬 罗日升 张庆玉 高翔 |
| 作者单位： | 1. 中国石油塔里木油田勘探开发研究院,新疆库尔勒,841000 2. 中国地质科学院岩溶地质研究所,广西桂林,541004 3. 中国石油塔里木油田勘探开发研究院,新疆库尔勒841000<中作者单位六>=中国地质科学院岩溶地质研究所,广西桂林541004 |
| 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) |
| 摘 要： | 轮南古潜山位于塔里术盆地塔北隆起轮南低凸起中部地区，主要岩溶层位是奥陶系鹰山组与一间房组，轮南古潜山的形成条件和表生岩溶作用时间与中国南方的桂林岩溶存在极其相似之处。本文通过研究轮南地区古风化壳表罢岩溶带发育分布特征及其形成影响因素，认为：表层岩溶带主要分布于距古风化面以下0-40m范围内，此带范围内岩藩缝洞系统相对比较发育，岩溶缝洞系统具有一定连通性，属岩溶储层较为发育的部位，岩溶储层有敏储集空间主要是溶蚀孔洞、小规模溶洞和溶蚀裂缝；表层岩溶带发育与古岩溶地貌及古水动力条件具有密切关系，岩溶地貌娄型或水动力条件不同，表层岩溶带发育厚度、岩溶形态与岩溶缝洞系统发育规模、岩溶缝洞系统充填特征也不同。 |
| 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 |
| 收稿时间： | 8/4/2011 12:00:00 AM |
The distribution characteristics of the epikarst reservoir in Lunnan Ordovician buried hill |
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| CHEN Li-xin,PAN Wen-qing,LIANG Bin,LUO Ri-sheng,ZHANG Qing-yu and GAO Xiang.The distribution characteristics of the epikarst reservoir in Lunnan Ordovician buried hill[J].Carsologica Sinica,2011,30(3):327-333. | |
| Authors: | CHEN Li-xin PAN Wen-qing LIANG Bin LUO Ri-sheng ZHANG Qing-yu and GAO Xiang |
| Institution: | Research Institute of Petroleum Exploration & Development of Tarim Oilfield Company, Petro China;Research Institute of Petroleum Exploration & Development of Tarim Oilfield Company, Petro China;Institute of karst Geology, CAGS;Research Institute of Petroleum Exploration & Development of Tarim Oilfield Company, Petro China;Institute of karst Geology, CAGS;Research Institute of Petroleum Exploration & Development of Tarim Oilfield Company, Petro China |
| Abstract: | Lunnan ancient buried hill is located in the central region of Lunnan low bulge of Tabei uplift, Tarim 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. |
| Keywords: | burial hill Ordovician epikarst paleo-topography karst reservoir Tarim Basin |
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