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US 7,009,113 B2Granted
High temperature electrical cable having interstitial filler
AssigneeSchlumberger Technology Corporation
InventorJoseph P. Varkey
Life of this patent
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Abstract
A cable includes a central insulated conductor with a plurality of outer insulated conductors disposed around the central conductor. Interstices formed between the central conductor and outer conductors are at least partially filled with a filler material. Filler materials suitable for high temperature use are included. A jacket encases the filler material and the central and outer conductors. In some embodiments a yarn strand is disposed in the interstices.
Claims15
An electrical cable, comprising:
- a central insulated conductor;
- a plurality of outer insulated conductors disposed around the central insulated conductor, the central insulated conductor and the plurality of outer insulated conductors forming a first set of interstices therebetween and the plurality of outer insulated conductors forming a second set of interstices therebetween;
- a yarn strand disposed in at least one of the second set of interstices;
- a filler material substantially filling at least a portion of the first set of interstices and substantially filling at least a portion of the second set of interstices around the yarn, wherein the filler material is electrically non-conductive and comprises at least one of a ceramic putty, a fluoroelastomer, a fluorinated grease, and a fluorinated oil;
- a tape layer encasing the central insulated conductor, the plurality of outer insulated conductors, the yarn, and the filler material;
- and
- a jacket disposed on the tape layer.
4 more elements
Dependencies are inferred from the claim text.