| 新疆巴楚地区走滑断裂对碳酸盐岩构造裂缝发育的控制 |
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| 引用本文： | 张庆莲,侯贵廷,潘文庆,韩剑发,琚 岩,李 乐,肖芳锋.新疆巴楚地区走滑断裂对碳酸盐岩构造裂缝发育的控制[J].地质通报,2010,29(8):1160-1167. |
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| 作者姓名： | 张庆莲 侯贵廷 潘文庆 韩剑发 琚 岩 李 乐 肖芳锋 |
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| 作者单位： | 1. 北京大学地球与空间科学学院/造山带与地壳演化教育部重点实验室,北京,100871
2. 塔里木油田分公司勘探开发研究院,新疆,库尔勒,841000 |
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| 基金项目： | 国家自然科学基金项目,塔里木油田项目 |
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| 摘 要： | 走滑断裂如何控制附近构造裂缝的发育程度是碳酸盐岩地区构造裂缝定量研究的重要内容,对碳酸盐岩裂缝油气藏的储层预测具有重要意义。通过对野外测量的测量面距断裂的距离和构造裂缝面密度的定量关系进行统计分析,发现新疆巴楚地区的2条走滑断裂(张扭性皮羌走滑断裂和压扭性西克尔走滑断裂)控制的构造裂缝的密度与距断裂的距离呈指数关系,即远离断裂,裂缝密度呈指数下降,且存在一个裂缝密度骤减的范围,这个范围内为断裂控制的裂缝带;范围以外为区域控制的裂缝带,此带裂缝密度变化缓慢,相对稳定。新疆巴楚碳酸盐岩地区压扭性走滑断裂控制的构造裂缝的带宽与走滑断距的比值是张扭性走滑断裂的10倍以上,说明碳酸盐岩地区压扭性走滑断裂控制的构造裂缝带远比张扭性断裂控制的宽,压扭性走滑断裂附近的构造裂缝相对更发育,更有利于裂缝型碳酸盐岩储层的发育。
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| 关 键 词： | 碳酸盐岩 走滑断裂 构造裂缝 裂缝面密度 柯坪塔格构造带 巴楚地区 |
Development of fractures in carbonate rocks under the influence of strike-slip faults in Bachu area, Xinjiang, China |
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| ZHANG Qing-lian,HOU Gui-ting,PAN Wen-qing,HAN Jian-F,JU Yan,LI Le,XIAO Fang-feng.Development of fractures in carbonate rocks under the influence of strike-slip faults in Bachu area, Xinjiang, China[J].Geologcal Bulletin OF China,2010,29(8):1160-1167. |
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| Authors: | ZHANG Qing-lian HOU Gui-ting PAN Wen-qing HAN Jian-F JU Yan LI Le XIAO Fang-feng |
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| Abstract: | The development of fractures under the influence of strike-slip faults is an important aspect of quantitative study on structural fractures in the carbonate rock area, and it is important for reserve prediction of fractured carbonate oil & gas reservoir. Based on the statistical analysis of the relationship between the fracture density and the distance of measuring spots away from strike-slip faults, the fracture density can be controlled by two types of strike-slip faults (i.e., Piqiang tense-shearing strike-slip fault and Xiker compressive-torsional strike-slip fault). The exponential relationship between the two parameters is discovered in this research, which is that the fracture density decreases exponentially with the increase of the distance. Thus the zone called "facture zone controlled by faults" is developed, in which the fracture density decrease rapidly. The other zone is called "fracture zone controlled by region" that the fracture density varies slightly. The ratio of the zone width to fault throw of the tense-shearing fault is different from the compressive-torsional fault. The former is only one tenth of the latter. It shows that the compressive-torsional strike-slip fault is more beneficial to the structural fracture development than the tense-shearing fault. |
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| Keywords: | carbonate rock strike-slip fault structural fracture fracture density Kalpintag tectonic belt Bachu area |
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