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

通过力学分析,推导出计算钻压的迭代公式,即建立了计算井底钻压的力学模型.

互联网

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

在大斜度定向井钻井过程中, 摩擦阻力是影响有效钻压的主要因素.

互联网