基于面相交的微地震裂缝模型剖切算法研究  

Computation method for sectioned of micro-seismic fracture based on surface intersection

作　　者：汤东阳 庞锐[1] 王海波[1] 赵德明[1] 

机构地区：[1]中国石油化工股份有限公司石油物探技术研究院,江苏南京211103

出　　处：《计算机时代》2015年第8期9-11,共3页Computer Era

基　　金：国家重点基础研究发展计划(973)项目"优质页岩气储层预测及精细表征"(2014CB239201)

摘　　要："微地震裂缝显示"可以帮助用户直观地了解压裂裂缝空间信息,查清应力方向,评价压裂效果,实时调整压裂改造措施,计算储层改造体积并估算产能。为了更好地观察裂缝的空间形态,采用基于面相交的剖切算法实现了对裂缝模型任意方向剖切面的快速截取。算法通过将剖切面分别与裂缝模型的每个面逐一进行求交,并将相交部分进行追踪排序从而得到完整的剖面图。利用Open GL实现了剖切的仿真,结果表明,该方法能够快速实现对裂缝模型的任意剖切面的截取,提供了更加直观的裂缝分析手段。The display of micro-seismic fracture can help users intuitively understand spatial information of the fracture and identify the direction of stress, evaluate the effect of fracture, calculate and estimate the volume of reservoir stimulation capacity. In order to observe the spatial form of cracks better, we use the cut surface intersection algorithm to achieve a fast interception of any section of the fracture model. The algorithm will cut plane through surface cracks with each model separately one by one intersection, and track crossing portions sorting to obtain a complete cross-sectional view. Then we use OpenGL to realize the cut simulation. The results show that this method can quickly achieve the interception of any cracks in the cut plane model, provides a more intuitive means of crack analysis.

关 键 词：微地震 裂缝片 剖切 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]