Tubing Tension Calculator

The tubing tension calculator is used to calculate the surface pull and the tubing hanger tension required to achieve the specified tension at the anchor.

Tubing OD

Outer diameter of the tubing.

Tubing ID

Inner diameter of the tubing.

Grade

API Grade of the tubing.

Reservoir Temp

Fluid temperature in the reservoir.

Producing Wellhead Temp

Temperature of the produced fluid at the wellhead.

Pump Depth

Depth of the bottom hole pump measured from surface.

Anchor Depth

Depth of the tubing anchor measured from surface.

Pumped-off Intake Pressure

Pump intake pressure when the measured depth of the fluid level equals that of the pump intake.

On Production Casing Pressure

Pressure on the casing, measured at surface when the well is producing.

On Production Tubing Pressure

Pressure on the tubing, measured at surface when the well is producing.

Overpull Required at Surface

Distance above the tubing head flange the top of the tubing string must be pulled to place the slips and connect the tubing hanger to the tubing string.

Additional Load for Pump on Tap Case

Additional tension required on the tubing anchor so that the desired minimum anchor tension is maintained when the pump is on tap.

Desired Tension at Anchor

The desired minimum tension to be observed at the tubing anchor.

Surface Pull Required

Hook load required to achieve the required overpull so that the desired tension on anchor is realized when the tubing hanger is landed.

Expected RIH String Weight in Water

The expected hook load with the full tubing string in the hole, when the wellbore is filled with water.

Loss of Tension Due to Thermal Expansion

The loss of tension in the tubing string due to thermal expansion when going from static to producing wellbore conditions

Loss of Tension Due to Piston Effect

The lost tension resulting from the weight of the tubing fluid on the standing valve of the bottom hole pump, which is transferred to the tubing via the pump seat nipple.

Gain in Tension Due to Ballooning

The increase in axial tension due to the axial shrinkage that results from the radial expansion from the pressure difference between the inside of the tubing and the tubing casing annulus.

Additional Tension Required

The additional tension required to counter the sum of the thermal expansion, piston effect and ballooning.

Required Tension on Tubing Hanger

The tension on the tubing hanger when set so that the desired tension at the anchor is realized when the well is in a pumped off state.

Class I/II, Class III, Class IV, Class V

The minimum rig required to handle the required surface pull without being overloaded.