Technical Resources


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

INPUTS

Yield Strength:	70000 80000 90000 100000 110000 120000 psi	MPa
Outer Diameter:	1.000 1.250 1.500 1.750 2.000 2.375 2.625 2.875 3.500 4.500 6.625 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	m³
Volume Displacement:	bbls	m³
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.