摘要
摘要首先从库仑定律出发导出了地层介质塑性流动条件。其结果类似于一般塑性力学中的Tresca,Mises条件。其次列出了轴对称地层塑性流动的微分方程组,并推出了其简化近似方程。最后提出了简化方程的特征线解法,并举例说明。
The plastic flowing conditions of formation medium are derived from Coulomb's Low. The results are similar to Tresca &. Mises platic condition. A set of differential equations for plastic flowing medinm in axisymmetric formation are given out. Simplified approximate equations are derived. The characteristic line method for solving the approximated equations is presented and described with an example.
出处
《西安石油学院学报》
1992年第2期33-39,共7页
Journal of Xi'an Petroleum Institute
关键词
岩芯筒
塑性力学
地层介质
terms: core barrel, plastic mechanics, formation medinm, differential eqnation, plastic flowing condition, characteristic line
