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Technical Resources


CT Performance Calculations
Coiled Tubing terms provided by BJ Services Company.

INPUTS

Yield Strength: psi MPa
Outer Diameter: in. mm.
Nominal Wall Thickness: in. mm.
Length: ft. m.

OUTPUTS

Minimal Wall Thickness: in. mm.
Yield Load: lbs N
Yield Pressure: psi KPa

Yield Torque:

ft/lb N-m

Collapse Pressure (1):

psi KPa
Weight of Empty CT: lbs kg
Internal Volume: bbls m
Volume Displacement: bbls m
Elastic Stretch Coefficient: (2) (3)

(1)
: Assumes 2% ovality and that the axial force is 50% of the yield force.
(2): Feet of stretch when 1,000 lbs of force is applied to a section 1,000 feet long.
(3): Meters of stretch when 1,000 kgs of force is applied to a section 1,000 meters long.

 


 

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