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US 6,600,108 B1Granted
Electric cable
AssigneeSchlumberger Technology Corporation
InventorsRavicharan Mydur, Joseph P. Varkey, Sumit Sarkar, Willem A. Wijnberg
Life of this patent
Estimating the term…
Abstract
A cable includes an electrical conductor, a first insulating jacket disposed adjacent the electrical conductor and having a first relative permittivity, and a second insulating jacket disposed adjacent the first insulating jacket and having a second relative permittivity that is less than the first relative permittivity. A method includes providing an electrical conductor, extruding a first insulating jacket having a first relative permittivity over the electrical conductor, and extruding a second insulating jacket having a second relative permittivity over the electrical conductor, wherein the second relative permittivity is less than the first relative permittivity.
Claims24
A cable comprising:
- an electrical conductor;
- a first insulating jacket disposed adjacent the electrical conductor and having a first relative permittivity, wherein the first insulating jacket is made of polyaryletherether ketone polymer or polyphenylene sulfide polymer;
- and
- a second insulating jacket disposed adjacent the first insulating jacket and having a second relative permittivity that is less than the first relative permittivity, and wherein the first insulating jacket is mechanically bonded to the second insulating jacket.
1 more element
A cable comprising:
- an electrical conductor;
- a first insulating jacket disposed adjacent the electrical conductor and having a first relative permittivity, wherein the first insulating jacket is made of polyaryletherether ketone polymer or polyphenylene sulfide polymer;
- and
- a second insulating jacket disposed adjacent the first insulating jacket and having a second relative permittivity that is less than the first relative permittivity, and wherein the first insulating jacket is chemically bonded to the second insulating jacket.
1 more element
A cable comprising:
- an electrical conductor;
- a first insulating jacket disposed adjacent the electrical conductor and having a first relative permittivity, wherein the first insulating jacket is made of polyaryletherether ketone polymer or polyphenylene sulfide polymer;
- and
- a second insulating jacket disposed adjacent the first insulating jacket and having a second relative permittivity that is less than the first relative permittivity, and wherein the interface between the first insulating jacket and the second insulating jacket is substantially free of voids.
1 more element
A cable comprising:
- an electrical conductor;
- a first insulating jacket disposed adjacent the electrical conductor and having a first relative permittivity, wherein the first insulating jacket is made of polyaryletherether ketone polymer or polyphenylene sulfide polymer;
- a second insulating jacket disposed adjacent the first insulating jacket and having a second relative permittivity that is less than the first relative permittivity;
- and
- a fiber optic bundle.
2 more elements
A cable comprising:
- an electrical conductor;
- a first insulating jacket disposed adjacent the electrical conductor and having a first relative permittivity, wherein the first insulating jacket is made of polyaryletherether ketone polymer or polyphenylene sulfide polymer;
- a second insulating jacket disposed adjacent the first insulating jacket and having a second relative permittivity that is less than the first relative permittivity;
- a fiber optic bundle;
- a protective jacket surrounding the fiber optic bundle;
- and
- a filler material disposed between the fiber optic bundle and the protective jacket.
4 more elements
A cable comprising:
- a plurality of electrical conductors;
- a plurality of first insulating jackets each disposed adjacent one of the electrical conductors and having a first relative permittivity, wherein the first insulating jackets are made of polyaryletherether ketone polymer or polyphenylene sulfide polymer;
- a plurality of second insulating jackets each disposed adjacent one of the first insulating jackets and having a second relative permittivity that is less than the first relative permittivity;
- a jacket surrounding the plurality of insulated electrical conductors;
- wherein a void exists between the jacket and the plurality of insulated electrical conductors and the void is filled with an electrically non-conductive filler.
2 more elements
A cable comprising:
- an electrical conductor;
- a first insulating jacket disposed adjacent the electrical conductor and having a first relative permittivity;
- and
- a second insulating jacket disposed adjacent the first insulating jacket and having a second relative permittivity that is less than the first relative permittivity, and wherein the second insulating jacket is made of a material selected from the group consisting of polytetrafluoroethylene-perfluoromethylvinylether polymer, perfluoro-alkoxyalkane polymer, and ethylene-polypropylene copolymer.
1 more element
A cable comprising:
- a plurality of electrical conductors;
- a plurality of first insulating jackets each disposed adjacent one of the electrical conductors and having a first relative permittivity;
- a plurality of second insulating jackets each disposed adjacent one of the first insulating jackets and having a second relative permittivity that is less than the first relative permittivity, and wherein the second insulating jackets are made of a material selected from the group consisting of polytetrafluoroethylene-perfluoromethylvinylether polymer, perfluoro-alkoxyalkane polymer, and ethylene-polypropylene copolymer;
- a jacket surrounding the plurality of insulated electrical conductors;
- wherein a void exists between the jacket and the plurality of insulated electrical conductors.
2 more elements
Dependencies are inferred from the claim text.