STUDY ON THE FRACTURE FEATURES AND SEALING PROPERTIES OF THE L451 BLOCK IN ZHUANGXI OIL FIELD,JIYANG DEPRESSION

WANG Hong-bao; MIAO Ming-cai; WU Kong-you; HONG Mei; ZHONG Jian-hua

Volume 9 Issue 2

Jun. 2003

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Article Navigation > Journal of Geomechanics > 2003 > 9(2): 122-128

WANG Yun-sheng, LI Yong-zhao, XIANG Fang, 2003. THE GANZI LOESS ORIGIN IN THE WEST SICHUAN PLATEAU. Journal of Geomechanics, 9 (1): 91-96.

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WANG Hong-bao, MIAO Ming-cai, WU Kong-you, et al., 2003. STUDY ON THE FRACTURE FEATURES AND SEALING PROPERTIES OF THE L451 BLOCK IN ZHUANGXI OIL FIELD,JIYANG DEPRESSION. Journal of Geomechanics, 9 (2): 122-128.

WANG Yun-sheng, LI Yong-zhao, XIANG Fang, 2003. THE GANZI LOESS ORIGIN IN THE WEST SICHUAN PLATEAU. Journal of Geomechanics, 9 (1): 91-96.

Citation:

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STUDY ON THE FRACTURE FEATURES AND SEALING PROPERTIES OF THE L451 BLOCK IN ZHUANGXI OIL FIELD,JIYANG DEPRESSION

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

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.
- Jiyang depression,
- fault block,
- fracture feature:formation mechanism,
- fault sealing property,

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STUDY ON THE FRACTURE FEATURES AND SEALING PROPERTIES OF THE L451 BLOCK IN ZHUANGXI OIL FIELD,JIYANG DEPRESSION

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