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Drilling Engineering PE 311

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Drilling Engineering PE 311

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    1. Drilling Engineering PE 311

    2. When attempting to quantify the pressure losses in side the drillstring and in the annulus it is worth considering the following matrix:

    3. Assumptions: The drillstring is placed concentrically in the casing or open hole The drillstring is not being rotated Sections of open hole are circular in shape and of known diameter Incompressible drilling fluid Isothermal flow Momentum equation:

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