unstable type meaning in Chinese
不稳定型
Examples
- Oscillation of unstable type first order difference equation with continuous variable
连续变量不稳定型一阶差分方程的振动性 - A note on classification for nonoscillatory solutions of unstable type functional differential equations
不稳定型泛函微分方程非振动解分类的注记 - Existence of unbounded positive solution for the second order neutral differential equations with unstable type
二阶不稳定中立型时滞微分方程的无界正解的存在性 - Abstract : according to sidewall unstable problem during dr illing , the study on sidewall stability is developed . the paper analyses sidewall stress state and sidewall unstable type , and combines with log data and indoor e xperimental result of core . through analysis and calculation , the method of calcul ating slough formation pressure is proposed . by application of the method in 3 wells in yancheng area , result shows that slough pressure section fits in with field practical condition . it supplies some basis for design of drilling fluid d ensity
文摘:针对钻井中井壁失稳问题开展井壁稳定性研究,文中就井壁应力状态和失稳类型进行分析计算,并结合测井资料和岩心的室内实验结果进行分析,建立了一套计算地层坍塌压力的方法,结合盐城地区3口井应用对比,坍塌压力剖面基本吻合现场实际,为钻井液密度设计提供了一定的依据。