Downhole tool operated by shape memory material springs
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 t...
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Main Author | |
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Format | Patent |
Language | English |
Published |
17.01.2008
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Subjects | |
Online Access | Get full text |
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Summary: | 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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Bibliography: | Application Number: US20060487221 |