摘要
断裂如何控制其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方面,对碳酸盐岩裂缝性油气藏的储层预测具有重要的意义。文中以塔中Ⅰ号断裂带为例,重点研究逆冲断裂控制构造裂缝的分布规律,对其控制的构造裂缝面密度和分形进行了研究。研究结果表明,塔中Ⅰ号断裂控制的构造裂缝的裂缝面密度与距断裂的距离呈指数关系,其控制的构造裂缝带宽度约为距离Ⅰ号断裂3 km的范围内;构造裂缝分数维的研究结果表明,研究区塔中Ⅰ号断裂控制的构造裂缝按发育程度可以划分为3个级别,距断裂越近,裂缝越发育,分数维值越大,从而对构造裂缝分形分布的特征进行了定量化的描述。
The development of fractures under the influence of faults is an important aspect of quantitative study of structural fractures in the carbonate rock area,which is important to reservoir prediction of fractured carbonate oil and gas reservoir.In order to know the development and distribution of structural fractures around the thrust faults,this paper studies the surface density and fractals with the example of Tazhong No.1 Fault.An exponential relationship between structural fracture surface density and its distance to the fault is discovered in this research,and the controlling width is about 3000 m;besides,in this paper we divide the development of structural fractures into three levels on the basis of fractals,with high fractals near the fault and low fractals far from the fault;making the description of fracture development quantitative.
出处
《地学前缘》
EI
CAS
CSCD
北大核心
2011年第3期317-323,共7页
Earth Science Frontiers
基金
塔里木油田分公司项目
国家重大专项(2008ZX05029-001)
关键词
塔中Ⅰ号断裂
构造裂缝
裂缝面密度
分形
Tazhong No.1 Fault
structural fracture
fracture density
fractals
