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Tubing Movement Calculator

PRO

Mechanical, thermal, ballooning, and buckling length changes. Packer force calculation.

Tubing Properties

Tubing OD (in)

Tubing ID (in)

Packer Depth (ft)

Steel Grade Yield (psi)

Initial Tubing Pressure (psi)

Final Tubing Pressure (psi)

Initial Annulus Pressure (psi)

Final Annulus Pressure (psi)

Avg Initial Tubing Temp (°F)

Avg Final Tubing Temp (°F)

Mechanical (Hooke's)

Thermal

Ballooning

Buckling

Total Length Change

Packer Force (if anchored)

How this was calculated

Mechanical (Hooke's Law): dL = F*L/(A*E). Accounts for pressure-area forces on piston effect.

Thermal: dL = alpha * L * dT. Steel alpha = 6.9e-6 in/in/°F.

Ballooning: dL = (2*v*L/(E*(R²-1))) * (dPi - R²*dPo). Poisson ratio v = 0.3.

Buckling: Fictitious force method. If net compressive > critical, sinusoidal/helical buckling occurs.

Need tubing design, completion engineering, or packer selection support?