Casing Tension Calculator
Compute the effective axial tension at surface for suspended casing, including the buoyancy effect of drilling fluid.
Description
Compute the effective axial tension at surface for suspended casing, including the buoyancy effect of drilling fluid.
Casing Tension Calculator: Compute the effective axial tension at surface for suspended casing, including the buoyancy effect of drilling fluid.
When to use Casing Tension
Use this geological calculation for a transparent first-pass interpretation of measured rock, soil, fluid, well, stratigraphic, isotopic, geophysical, or seismic data under an explicitly selected model.
- Linear weight
- Linear weight of the casing string in newtons per metre.
- Length
- Suspended casing length in metres.
- Mud density
- Drilling fluid density in kilograms per cubic metre (0 disables buoyancy).
- Steel density
- Steel density in kilograms per cubic metre.
How Casing Tension works
Compute the effective axial tension at surface for suspended casing, including the buoyancy effect of drilling fluid. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Buoyancy factor
- Archimedes buoyancy factor applied to the string weight.
- Air weight
- String weight in air in kilonewtons.
- Effective tension
- Buoyed effective tension at surface in kilonewtons.
Limitations and assumptions
- Drilling and casing calculations depend on well geometry, fluid rheology and density, temperature, pressure, surge and swab, kick scenario, cement placement, wear, connection strength, transient hydraulics, and operator standards.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.
References
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Drilling engineering — Wikipedia contributors
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