| 中古8井区断裂与鹰山组岩溶储层成因关系 |
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| 引用本文： | 李景瑞,梁彬,于红枫,张庆玉,曹建文,淡永,郝彦珍,李杰.中古8井区断裂与鹰山组岩溶储层成因关系[J].中国岩溶,2015,34(2):147-153. |
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| 作者姓名： | 李景瑞 梁彬 于红枫 张庆玉 曹建文 淡永 郝彦珍 李杰 |
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| 作者单位： | 中国地质科学院岩溶地质研究所/国土资源部、广西壮族自治区岩溶动力学重点实验室;中国地质科学院岩溶地质研究所/国土资源部、广西壮族自治区岩溶动力学重点实验室;中国石油塔里木油田分公司勘探开发研究院;中国地质科学院岩溶地质研究所/国土资源部、广西壮族自治区岩溶动力学重点实验室/中国地质大学(武汉)环境学院;中国地质科学院岩溶地质研究所/国土资源部、广西壮族自治区岩溶动力学重点实验室/中国地质大学(武汉)环境学院;中国地质科学院岩溶地质研究所/国土资源部、广西壮族自治区岩溶动力学重点实验室/成都理工大学沉积地质研究院;中国地质科学院岩溶地质研究所/国土资源部、广西壮族自治区岩溶动力学重点实验室;中国石油长庆油田分公司第四采油厂 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)(2011CB201001)；国家自然科学基金青年基金(41302122)；国土资源部公益性行业专项(201211082)和中国地质科学院岩溶地质研究所基本科研业务费项目（2014009） |
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| 摘 要： | 塔里木盆地奥陶系碳酸盐岩地层中蕴藏丰富的油气资源,多期次不同类型岩溶作用叠加改造是形成塔中古岩溶储层的主要动因,断裂是影响岩溶储层发育的重要因素。中古8井区加里东期发育北西-南东逆冲断裂带,海西期发育北东-南西向走滑断裂带,组成网状断裂系统。岩溶储层发育于鹰山组顶面0~120m深度范围内,类型细分为:孔洞型、洞穴型、裂缝型和裂缝—孔洞型4种,以裂缝-孔洞型和孔洞型为主。加里东至海西期多期、多组断裂及伴生的裂缝网状系统形成良好的流体运移通道,促进缝洞系统的形成与埋藏溶蚀作用及内幕白云岩化的发生,改善了储层的储集性能,形成碳酸盐岩孔-洞-缝复合型储集体。
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| 关 键 词： | 岩溶储层 断裂 岩溶作用 鹰山组 中古8井区 |
Genesis relationship between faults and karst reservoirs in the Yingshan formation, Medieval No.8 wellblock |
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| LI Jing-rui,LIANG Bin,YU Hong-feng,ZHANG Qing-yu,CAO Jian-wen,DAN Yong,HAO Yan-zhen and LI Jie.Genesis relationship between faults and karst reservoirs in the Yingshan formation, Medieval No.8 wellblock[J].Carsologica Sinica,2015,34(2):147-153. |
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| Authors: | LI Jing-rui LIANG Bin YU Hong-feng ZHANG Qing-yu CAO Jian-wen DAN Yong HAO Yan-zhen and LI Jie |
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| Abstract: | There are abundant oil and gas resources in the Ordovician carbonate formation of the Tarim basin.The superposition and transformation in many episodes of different types of karst development are the main driving force of Tazhong ancient karst reservoirs. Faults are an important factor affecting karst reservoirs. The Medieval No.8 wellblock is situated in a northwest-southeast trending thrust fault zone of the Caledonian period and a northeast-southwest trending strike-slip fault zone of the Hercynian period, which form a network system. The karst reservoirs developed in the subsurface from the top of Yingshan formation to 120 km depth, which are of hole type, cavity type, fissure type and fissure-hole type. Of these, the fissure-hole type and hole-type are dominant. The multi-episode faults and associated fissure network system of the Caledonian to Hercynian period serve as good migration channels for fluids, which promote the development of the fissure-hole system, burial dissolution and dolomitization, improving the performance of reservoirs to become a complex combination of carbonate holes, cavities and cracks. |
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| Keywords: | karst reservoir fault karstification Yingshan formation Medieval No 8 wellblock |
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