Tubing movement, forces and stresses

Tubing movement, forces and stresses

Tubing movement and stress behaviour are a function of the well temperatures and pressures: The changes in temperature will cause the tubing to expand and contract.

For example, 10,000 ft of tubing suspended in a well will shorten by 16.6 inches with a temperature drop of 20°F. Pressures inside and outside the tubing above the packer act on the differential areas, changing the tubing length according to Hooke's law. The differential pressures between the inside and outside acting on the cross-sectional area of the packer bore at . . .