Downhole tool operated by shape memory material

Details Downhole tool operated by shape memory material Downhole tool operated by shape memory material

2006-07-14

2009-12-01

Bagnell, David J (Department: 3672)

Wells

Expansible anchor or casing

Spring set

C166S134000, C166S206000, C166S214000

Reexamination Certificate

active

07624797

ABSTRACT:
The invention features the use of a shape memory material in a downhole application to provide an energy source for at least in part setting the tool. In a specific application the springs that set slips for a liner hanger are made from the shape memory material and easily pre-compressed below the transition temperature when the material has low modulus of elasticity. The tool is run into position where a heat source such as well fluids or a heater can bring the springs above the transition temperature to store a force. The tool is then independently released to allow the stored force to set the tool.

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