Method for thermal insulation, method for preparation of an insulating gel and insulating gel produced thus
First Claim
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1. A method for thermal insulation, characterized in that it comprises:
- positioning a gel formed between an insulating liquid base, which may or may not be a phase change material, and at least one gelling agent comprising at least one polysiloxane resin, which may or may not be modified, and in situ cross linking of said polysiloxane resin.
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Abstract
A method for thermal insulation comprises positioning a gel formed between an insulating liquid base, which may or may not be a phase change material, and at least one gelling agent comprising at least one polysiloxane, which may or may not be modified, and in situ cross linking of the gelling agent, optionally in the presence of at least one compatibilizing agent. More particularly, it is used to insulate a flowline or a pipeline, in particular for ultradeep operations at temperatures of 2° C. to 200° C. Cross-linkable formulations, the various cross-linking processes and the insulating gels obtained are described.
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41 Claims
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1. A method for thermal insulation, characterized in that it comprises:
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positioning a gel formed between an insulating liquid base, which may or may not be a phase change material, and at least one gelling agent comprising at least one polysiloxane resin, which may or may not be modified, and in situ cross linking of said polysiloxane resin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 38)
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- 37. An insulating gel, characterized in that it is formed from an insulating liquid base and at least one cross-linked polysiloxane resin.
Specification