| 鄂尔多斯盆地塔巴庙地区上古生界储层裂缝特征及分布评价 |
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| 引用本文： | 周文,张哨楠,李良,苏付义.鄂尔多斯盆地塔巴庙地区上古生界储层裂缝特征及分布评价[J].矿物岩石,2006,26(4):54-61. |
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| 作者姓名： | 周文 张哨楠 李良 苏付义 |
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| 作者单位： | 1. 成都理工大学"油气藏地质及开发工程"国家重点实验室,四川,成都,610059
2. 中国石油化工公司华北分公司研究院,河南,郑州,450006 |
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| 摘 要： | 根据塔巴庙地区上古生界地层完钻井的岩心、薄片裂缝观测、测井裂缝解释成果的分析,结合盆地区域构造应力历史、裂缝充填物的稳定同位素特征,对研究区裂缝的成因类型进行确定,分析认为研究上古生界地层中的裂缝为典型的区域性裂缝,具有如下特征:1)岩心上表现为张性的高角度或垂直裂缝,成组出现;2)无论砂岩、泥岩均发育该类裂缝,砂岩比其他岩类相对发育;3)裂缝形成期次与最大燕山期构造活动期一致;4)裂缝产状稳定,走向与燕山期构造主应力方向基本相同;5)裂缝分布不受局部变形所制约。在总结了控制裂缝发育的地质因素后,利用有限元法古构造应力场模拟技术,结合地层特征,对研究区主要层位的区域性裂缝的分布特征进行评价。
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| 关 键 词： | 塔巴庙地区 上古生界储层 区域性裂缝 岩心裂缝特征 测井裂缝识别 古应力场 裂缝分布评价 |
| 文章编号： | 1001-6872（2006）04-0054-08 |
| 收稿时间： | 2006-05-07 |
| 修稿时间： | 2006-11-18 |
THE CHARACTER OF UPPER PALEOZOIC RESERVOIR FRACTURES AND THE EVALUATION OF THEIR DISTRIBUTION IN TABAMIAO AREA OF ORDOS BASIN |
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| ZHOU Wen,ZHANG Shao-nan,LI Liang,SU Fu-yi.THE CHARACTER OF UPPER PALEOZOIC RESERVOIR FRACTURES AND THE EVALUATION OF THEIR DISTRIBUTION IN TABAMIAO AREA OF ORDOS BASIN[J].Journal of Mineralogy and Petrology,2006,26(4):54-61. |
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| Authors: | ZHOU Wen ZHANG Shao-nan LI Liang SU Fu-yi |
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| Institution: | 1. State Key Laboratory Of Oil And Gas Reservoir Geology And Exploitation , Chengdu University of Technology,Chengdu 610059,China; 2. Research Institute Of North China Branch,SINOPEC,Zhengzhou 450006,China |
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| Abstract: | According to core of well drilling,study in thin section fracture,and analysis of fracture explanation from well logging,combined with history of the regional tectonic stress and the isotope character of filling,from well logging the genesis of fracture is determined.That the fractures are typical regional fractures which have following characters:1)There are extension high-angle or vertical fractures in core,which appear in group;2)Both sandstone and shale,develop fractures,with the former better than the latter;3)The formation period of fracture coincides with active period of Yanshan tectonic movement;4)The attitude of fractures are stable and coincide with the principal stresses of Yanshan tectonic movement;5)The growth of fracture is not constricted by local deformation.Based on the summary of geological factors controlling the development of fractures,finite element technique is employed to simulate the structural stress field and the distribution characteristics of regional fractures is evaluated in line with the stratigraphic feature. |
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| Keywords: | Tabamiao region the reservoir of Upper Paleozoic regional fracture the fracture character of core identifying fracture in well logging ancient stress field the evaluation of fracture distribution |
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