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改进的构造曲率法在伊朗卡山地区Aran背斜库姆组裂缝研究中的应用
引用本文:吴仕虎,李小刚,陈刚,吴伟航,李先兵.改进的构造曲率法在伊朗卡山地区Aran背斜库姆组裂缝研究中的应用[J].达县师范高等专科学校学报,2011,21(2):83-86.
作者姓名:吴仕虎  李小刚  陈刚  吴伟航  李先兵
作者单位:吴仕虎,李小刚,陈刚,WU Shi-hu,LI Xiao-gang,CHEN Gang(成都理工大学能源学院,四川,成都,610059);吴伟航,WU Wei-hang(中石油勘探开发研究院西北分院,甘肃,兰州,730000);李先兵,LI Xian-bing(西南油气田公司川中油气矿南部采油气作业区,四川,南充,637300)
摘    要:Aran背斜是伊朗卡山区块主要勘探目标,前期勘探已揭示其目的层库姆组C4亚段为一套典型的裂缝性储层.在Aran背斜三维地震构造精细解释基础之上,利用并改进构造线曲率法,五点二次拟合法,对贯穿该构造的276条剖面开展了曲率计算,并编制了C4段顶最大曲率平面分布图.结合断裂系统分布,总结出该构造裂缝发育主要分布在背斜的长轴、高点及北西倾伏端,依据曲率值分布,将该背斜划分为3个裂缝带,并依次对其进行了评价,揭示了裂缝发育分布规律.上述认识对该构造的进一步勘探具有参考意义。

关 键 词:卡山区块  库姆组C4亚段  构造曲率法  构造裂缝

Application of an Improved Tectonic Line Curvature Method to Research of Structural Fracture: A Case Study on Aran Anticline in Kashan Block in Iran
WU Shi-hu,LI Xiao-gang,CHEN Gang,WU Wei-hang,LI Xian-bing.Application of an Improved Tectonic Line Curvature Method to Research of Structural Fracture: A Case Study on Aran Anticline in Kashan Block in Iran[J].Journal of Daxian Teachers College,2011,21(2):83-86.
Authors:WU Shi-hu  LI Xiao-gang  CHEN Gang  WU Wei-hang  LI Xian-bing
Institution:WU Shi - hu , LI Xiao - gang , CHEN Gang , WU Wei - bang, LI Xian - bing (1. Energy College of Chengdu Science and Engineering University, Chengdu Sichuan 610059; 2. Northwest Institute of Research Institute of petroleum Exploration and Development, Lanzhou Gansu 730020; 3. South Operation Area of Central Sichuan Oil and Gas Miners of South - west China Oil and Gas Co - operation, Nanchong Sichuan 637300, China)
Abstract:Aran anticline is the main exploration target in the Kashan Block in h'an. The C4 sub - member of the Qom formation has already been proved a set of typical fractured reservoir by previous exploration activities. In this paper, based on fine structure interpretation on 3D seismic data covering Aran anticline, using an improved tectonic line curvature with five -point twice fitting, we conducted curvature calculation of 276 profiles covering this structure, and then mapped the maximum curvature distribution diagram of the top of the C4 sub - member. In the combination of the fanh system distribution, our research indicates that the structural fractures mainly developed along the long axis, in the high part and NW plunging of this fold. In term of the curvature value, we mapped 3 fracture zones on this anticline and conducted evaluation on them, revealing the development and distribution law of fractures within this fold. These understandings are beneficial for further exploration for this structure.
Keywords:Kashan Block  C4 sub - member of Qom formation  Tectonic line curvature method  Struetural fracture
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