| 济阳坳陷桩西油田L451断块断裂特征及其封闭性 |
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| 引用本文： | 王洪宝,缪明才,吴孔友,洪梅,钟建华.济阳坳陷桩西油田L451断块断裂特征及其封闭性[J].地质力学学报,2003,9(2):122-128. |
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| 作者姓名： | 王洪宝 缪明才 吴孔友 洪梅 钟建华 |
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| 作者单位： | 1. 浙江大学地球科学系, 杭州 310026; |
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| 摘 要： | L451断块的基底形态为一典型的凸起-缓坡边缘构造坡折带,盖层沿基底斜坡向上超覆,呈单倾形态,构造简单,油气主要受断层控制。区内共发育6条断层;走向为NNE向和NWW-EW向两组,其中NNE向断层形成早且具生长性质,NWW-EW向断层形成晚,两组断层相交构成墙角式断块。在分析断层几何特征基础上,从断层活动期与油气运移期的匹配关系、泥岩涂抹带的是否连续分布等因素分析了研究区断层的封闭性,最后利用模糊数学的方法综合评价了各砂体的封闭性,评价结果与油田钻井基本吻合。
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| 关 键 词： | 济阳坳陷 断块 断裂特征 形成机制 断层封闭性 |
| 文章编号： | 1006-6616(2003)02-0122-07 |
| 收稿时间： | 2002/10/31 0:00:00 |
| 修稿时间： | 2002年10月31 |
STUDY ON THE FRACTURE FEATURES AND SEALING PROPERTIES OF THE L451 BLOCK IN ZHUANGXI OIL FIELD,JIYANG DEPRESSION |
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| WANG Hong-bao,MIAO Ming-cai,WU Kong-you,HONG Mei and ZHONG Jian-hua.STUDY ON THE FRACTURE FEATURES AND SEALING PROPERTIES OF THE L451 BLOCK IN ZHUANGXI OIL FIELD,JIYANG DEPRESSION[J].Journal of Geomechanics,2003,9(2):122-128. |
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| Authors: | WANG Hong-bao MIAO Ming-cai WU Kong-you HONG Mei and ZHONG Jian-hua |
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| Institution: | 1. Earth Science Department, ZheJiang University, Hangzhou city, ZheJiang province 310026;2. Dongxin Oil Recovery Plant, Dongying City, Shandong Province 257098;3. Zhuangxi Oil Recovery Plant, Dongying City, Shandong Province 257098;4. Earth Resources and Information College, Petroleum University of China, Dongying City, Shandong Province 257061;5. Guangzhou Geochemical Research Institute of CAS, Guangzhou city, Guangdong province 510640 |
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| Abstract: | Based on the analysis of the L451 block,we know that the basement of the block is the typical structural slope-break zone located at the upward-gentle slope margin,and the cap rock overlapping on the slope of the basement shows the monoclines style.So the structure in the L451 block is simple and the faults controlled the characteristic of oil/gas.There are six faults trending in two main directions in the block,one is NNE,developed early and contemporaneously,and the other is NWW-EW,developed later.The corner-like block was formed by intersecting of the two groups of the faults.According to the analysis of geometric characteristic,the sealing properties of the faults are revealed by the several factors,such as the matching relationship between the fracture activity and the oil/gas migration stage,the extent of the continuous distribution of the mudstone-smearing zone.Then,using the fuzzy mathematics,we evaluate the sealing properties of the sandstone bodies,and the results are coinciding with the data of some wells in the oil filed. |
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| Keywords: | Jiyang depression fault block fracture feature: formation mechanism fault sealing property |
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