高能气体压裂径向多裂缝延伸数值模拟方法  

Method of Simulating the Propagation of Multiple Radial Fractures during the High Energy Gas Fracturing

作　　者：杨卫宇[1] 张廷汉[1] 张永良 

机构地区：[1]西安石油学院石油工程系

出　　处：《西安石油学院学报》1993年第3期1-5,共5页Journal of Xi'an Petroleum Institute

摘　　要：数值模拟是高能气体压裂径向多裂缝延伸机理研究的重要内容.本文对数值模拟的方法作了探讨,内容包括火药燃烧,岩石变形及裂缝扩展和气体流动三部分.数值计算方法采用了边界元理论中的位移不连续法。初步试算表明,所探讨的数值模拟计算模式稳定可靠、可以较好地模拟径向多裂缝的延伸特征.Numerical Simulation of the multiple radial fracture propagation during the high energy gas fracturing is significant in the study of mechanism.This paper puts forward an approach to the multiple radial fracture propagation simulation which com- prises propellant burning,rock deformation,crack growth and gas flow etc.The dis- placement discontinuity method in the boundary element theory is used for the numerical solution.The preliminary results show that the discussed model is stable and reliable, and can simulates the propagation features of multiple radial fractures fairly well.

关 键 词：高能气体 压裂 裂缝 数值模拟 

分 类 号：TE357.11[石油与天然气工程—油气田开发工程]