| 塔里木盆地玉北地区奥陶系储层构造裂缝成因模式 |
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| 引用本文： | 张继标,云金表,张仲培,刘士林,黄玮.塔里木盆地玉北地区奥陶系储层构造裂缝成因模式[J].地质力学学报,2014,20(4):413-423. |
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| 作者姓名： | 张继标 云金表 张仲培 刘士林 黄玮 |
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| 作者单位： | 1. 中国石化石油勘探开发研究院西北勘探研究中心,北京,100083
2. 中国石油长庆油田第六采油厂,西安,710200 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目(2012CB214802)；国家重大专项专题 |
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| 摘 要： | 在基于成像测井、岩心及薄片资料对玉北地区构造裂缝进行识别并总结其发育规律的基础上,根据裂缝切割关系、充填方解石阴极发光及包裹体特征划分裂缝发育期次,并应用有限元法数值模拟不同裂缝发育期古构造应力场特征,结合裂缝发育力学机制,分析不同时期断层-褶皱控制下的裂缝成因模式。研究结果表明,玉北地区奥陶系构造裂缝主要沿高陡带发育,其发育程度、产状受断层、褶皱共同控制,共发育4期裂缝,其中加里东中期Ⅰ、Ⅲ幕裂缝受断层主控、加里东晚期至海西早期裂缝受断层与褶皱共同控制、海西晚期裂缝主要受褶皱控制;与断裂走向较一致的高角度裂缝对储层发育贡献最大,加里东晚期—海西早期及海西晚期两期裂缝发育区,更有利于油气聚集。
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| 关 键 词： | 裂缝 发育规律 应力 数值模拟 成因机制 玉北地区 |
| 收稿时间： | 2014/8/5 0:00:00 |
THE DEVELOPMENT MODEL OF STRUCTURAL FRACTURES IN ORDOVICIAN RESERVOIR IN YUBEI AREA, TARIM BASIN |
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| ZHANG Ji-biao,YUN Jin-biao,ZHANG Zhong-pei,LIU Shi-lin and HUANG Wei.THE DEVELOPMENT MODEL OF STRUCTURAL FRACTURES IN ORDOVICIAN RESERVOIR IN YUBEI AREA, TARIM BASIN[J].Journal of Geomechanics,2014,20(4):413-423. |
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| Authors: | ZHANG Ji-biao YUN Jin-biao ZHANG Zhong-pei LIU Shi-lin and HUANG Wei |
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| Institution: | SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China;No.6 Oil Production Plant, Changqing Oilfield, PetroChina, Xi''an 710200, China |
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| Abstract: | Based on the identifying of fractures by the use of FMI,cores and slides data, the development law of structural fractures were summarized. The stages of structural fractures were classified according to the cross relation, the characteristics of cathodeluminescence and inclusions, and then the finite element method was applied to simulating the tectonic stress field mathematically in each fracture developing periods, also the genetic mechanism of structural fractures controlled by fault-fold in different periods were analyzed combining with the mechanical mechanism. The results showed that the structural fractures mainly developed along the high-steep zone in Yubei area, and their development degree and occurrence were controlled by fault and fold. Four stages of structural fractures recognized in this area: the fractures developed in I and III activities of the Middle Caledonian were mainly controlled by fault, the fractures developed in the Late Caledonian-Early Hercynian were controlled by fault and fold, and the fractures were mainly controlled by fold in the Late Hercynian. The fractures with high angle and parallel with the fault gave more contributions to reservoir development, and the fractures which developed both in the Late Caledonian-Early Hercynian and the Late Hercynian gave more conducive atmosphere to oil-gas accumulation. |
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| Keywords: | fracture development law stress numerical simulation genetic mechanism Yubei area |
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