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地质科学  2010, Vol. 45 Issue (01): 292-306    DOI:
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断裂对碳酸盐岩地层储集空间的影响〖KH*9〗 ——以塔里木盆地轮古东地区奥陶系碳酸盐岩地层为例
赵学钦1| 2 马青3 王振宇3 周成刚4 杨海军5 刘永福5
1.浙江大学地球科学系浙江杭州 310027; 2.教育部含油气盆地构造研究中心浙江杭州 310027; 3.西南石油大学资源与环境学院成都 610500; 4.中国石油东方地球物理有限责任公司研究院库尔勒分院新疆库尔勒 841000; 5.中国石油塔里木油田分公司勘探开发研究院新疆库尔勒 841000
The effect of the reservoir space in carbonate formation by fracture:Take the Ordovician carbonate formation  in Lungudong region of Tarim Basin as an example
Zhao Xueqin1,2 Ma Qing3 Wang Zhenyu3 Zhou Chenggang4 Yang Haijun5 Liu Yongfu5
1.Department of Earth Sciences|Zhejiang University|Hangzhou|Zhejiang 310027; 2.Structural Research Center of Oil and Gas Bearing Basin|Ministry of Education| Hangzhou|Zhejiang 310027; 3.Institute of Resources and Environment|Southwest Petroleum University|Chengdu|Sichuan 610500; 4. Research Institute of Exploration and Development|Korla Branch Company|PGP CNPC|Korla|Xinjian 841000;  5.Research Institute of Exploration and Development|Tarim Oilfield|CNPC|Korla|Xinjiang 841000
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摘要 轮古东地区主要发育两期断裂,断裂使碳酸盐岩地层形成了以大型溶洞占主导,网状构造裂缝和孔洞相辅的溶洞裂缝储集空间体系。早期断裂主要控制了瘤状灰岩尖灭线西北的潜山高地岩溶,形成深切峡谷式沟壑相连的古地貌,流体溶蚀裂缝形成溶洞为主的储集空间。晚期断裂一方面形成新的储集空间并将早期形成的未充填或半充填的裂缝和溶蚀孔洞沟通; 另一方面,为大气淡水进入下部岩层提供了通道,形成在奥陶系下部地层发育的水平潜流带和深部缓流带岩溶体系。此外,火山热液沿两期断裂进入碳酸盐岩地层,对通道附近的碳酸盐岩产生显著的溶蚀,主导了深部的岩溶作用。
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关键词断裂 碳酸盐岩 古岩溶 储集空间     
Abstract: There are twoperiod principal fractures developed in the Lungudong region. It makes carbonate formation to generate cavefracture reservoir space system which dominated large caves as well as accompanied by network structural fractures and pore spaces. Early fractures mainly control the karsts of buried hill which located in the southnorth pinch out of knollenkalk formation. It creates incised valley palaeogeomorphology and was enlarged to cavebased reservoir space by fluid erosion. Late fractures induce to two effects,on the one hand,it builds up new reservoir space and makes the unfilled or halffilled early fissures and corrosion pore spaces connected; on the other hand,it provides channels for the atmospheric fresh water immerge into the lower bed stratum,which result in the karsts system of levelundercurrent belt and deepunhurried current belt developed. Moreover,volcanic hydrothermal solution entering into carbonate formation by these fractures,which makes prominent erosion effect on the carbonate formation of nearby channels and control the karstification in the deep.
Key wordsStructural fracture   Carbonate   Paleokarst   Reservoir space   
收稿日期: 2009-07-06; 出版日期: 2010-01-25
基金资助:国家自然科学基金重点项目(编号: 40930315)资助.
引用本文:   
. 2010, 断裂对碳酸盐岩地层储集空间的影响〖KH*9〗 ——以塔里木盆地轮古东地区奥陶系碳酸盐岩地层为例. 地质科学, 45(01): 292-306.
. The effect of the reservoir space in carbonate formation by fracture:Take the Ordovician carbonate formation  in Lungudong region of Tarim Basin as an example [J]. Chinese Journal of Geology, 2010, 45(01): 292-306.
 
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[1] 王欣, 王健, 张举, 傅力浦, 孟勇, 张欣. 陕西岚皋地区Oktavites spiralis(螺旋奥式笔石)发育过程的初步研究[J]. 地质科学, 2013, 48(4): 1295-1301.
 
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