提出了可用于生产实际中的简化计算式。

Simplified formulas are suggested for the rolling practice.

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导出了理想离心力场中徽粒沉降速度解，给出了简化计算式及简化判据。

The equations and their simplified forms of centrifugal settling in Stokes region are given.

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推导出了管柱在井中自重伸长的简化计算式，上提加压式封隔器坐封高度及通常情况下坐封高度的简化计算式。

Formulae strict and simplified including both describing pipe string gravitation elongate in the wellbore and expressing excluding height of take up packers are derived.

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