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Closed-Ended Pipe Buoyed Weight with No Fluid Inside Calculator

Wbuoyed,closed=Wair−OD2FW24.5W_{buoyed,closed}=W_{air}-\frac{OD^2FW}{24.5}

Enter the declared drilling engineering inputs below to solve W_buoyed_closed. Variable definitions, units, the default calculation, and the available source trail are included on this page.

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Inputs

Defaults provide a quick field-unit example for the equation.

3 variables

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Extended guidance in preparation

What is available in this record

This record provides the functioning calculator, formula, declared variables and units, a reproducible default result, and the available citation metadata. A separately written engineering interpretation has not yet been published for this calculation.

Formula reference

Formula, variables, and default calculation

Wbuoyed,closed=Wair−OD2FW24.5W_{buoyed,closed}=W_{air}-\frac{OD^2FW}{24.5}

Reproducible default result

With the default values shown below, the calculation returns W_buoyed_closed = 16.126276 lb/ft. Defaults demonstrate the implementation; they are not recommended field values.

W_airlb/ft

19.5

ODin

2.875

FWppg

10

Input definitions

W_air

lb/ft

Pipe Weight in Air

OD

in

Pipe Outside Diameter

FW

ppg

External Fluid Weight

Output definitions

W_buoyed_closed

lb/ft

Buoyed Weight of Closed-Ended Pipe

W_air

lb/ft

Pipe Weight in Air

OD

in

Pipe Outside Diameter

FW

ppg

External Fluid Weight

Source and record status

Source metadata identifies the relationship implemented by the calculator. Check the cited edition, unit basis, and scope against the engineering case before operational use.

reviewed

IADC WellSharp Formula Sheet, field units, well completion/workover formula sheet.

Open source reference