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US 9,691,522 B2Granted
Method of making down-hole cable
AssigneeRockbestos Surprenant Cable Corp.
InventorScott Magner
Life of this patent
Estimating the term…
Abstract
A system and method for a down-hole cable is provided. The down-hole cable includes an insulated conductor portion. A filler layer abuts and encapsulates the insulated conductor portion, wherein the filler layer is substantially formed with a foamed fluoropolymer. An armor shell is applied to the exterior of the foamed fluoropolymer filler layer.
Claims18
A method of making a down-hole cable, the method comprising:
- foaming, via a nitrogen gas injection process, a filler layer about an insulated conductor portion, the filler layer abutting and encapsulating the insulated conductor portion, wherein the filler layer is substantially a fluoropolymer;
- applying an armor shell to an exterior of the foamed filler layer;
- and
- after applying the armor shell, heating the down-hole cable, including the foamed filler layer and the armor shell, to a temperature in excess of 300° C., thereby increasing a foamed cell structure of the foamed filler layer such that a radial compressive force is exerted on an exterior surface of the insulated conductor portion and an interior surface of the armor shell with the foamed filler layer.
1 more element
A method of making a down-hole cable, the method comprising:
- forming at least one insulated conductor portion by encapsulating at least one elongated conductor portion with at least one insulating portion;
- foaming a filler layer about the at least one insulating portion, the filler layer abutting and encapsulating the at least one insulated conductor portion, wherein the filler layer is substantially a fluoropolymer having a chemically or nitrogen-injected, foamed cell structure;
- applying an armor shell to the exterior of the filler layer, encapsulating the filler layer in a gas-tight enclosure;
- and
- after applying the armor shell, heating the down-hole cable, including the foamed filler layer and the armor shell, to a temperature in excess of 300° C., thereby increasing a foamed cell structure of the foamed filler layer such that a radial compressive force is exerted on an exterior surface of the at least one insulated conductor portion and an interior surface of the armor shell with the foamed filler layer.
2 more elements
Dependencies are inferred from the claim text.