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Drilling EngineeringWell ControlCalculation record

Casing Pressure After Subsea Start-Up Calculator

Pstart=SICP−PclP_{start}=SICP-P_{cl}

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

Tabular solver

Inputs

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

2 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

Pstart=SICP−PclP_{start}=SICP-P_{cl}

Reproducible default result

With the default values shown below, the calculation returns P_start = 650 psi. Defaults demonstrate the implementation; they are not recommended field values.

SICPpsi

800

P_clpsi

150

Input definitions

SICP

psi

Shut-In Casing Pressure

P_cl

psi

Choke Line Friction Loss

Output definitions

P_start

psi

Casing or Choke Pressure After Subsea Start-Up

SICP

psi

Shut-In Casing Pressure

P_cl

psi

Choke Line Friction Loss

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, casing or choke pressure after subsea start-up.

Open source reference