Casing

Casing is a large-diameter steel pipe used as the structural lining of oil and gas wells. It stabilizes the wellbore, prevents collapse, and isolates formation zones.

Outer Diameter : 4 1/2'' - 20'' (114.3 mm - 508 mm)
Wall Thickness : 0.205'' - 0.635'' (5.21 mm - 16.13 mm)
Lengths : R1, R2, R3