The recursion formula for calculating WOB are established by means of the mechanical analysis.

通過力學(xué)分析,推導(dǎo)出計(jì)算鉆壓的迭代公式,即建立了計(jì)算井底鉆壓的力學(xué)模型.

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In drilling high angle deviated holes, friction is the main factor affecting the effective WOB.

在大斜度定向井鉆井過程中, 摩擦阻力是影響有效鉆壓的主要因素.

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