Electrical transmission line diametrical retention mechanism
First Claim
1. An electrical transmission line retention mechanism in a pipe component having ends, comprising:
- a first slot formed in the pipe component intermediate its ends and exposed at an internal diameter of the pipe component;
a second slot, wider than the first slot, formed in the pipe component and aligned with and overlapping the first slot; and
the second slot also exposed at the internal diameter and terminating at one of the ends of the pipe component;
wherein the first and second slots also adapted to affix an electrical transmission line along the internal diameter of the pipe component.
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Accused Products
Abstract
The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within downhole components. The invention allows a transmission line to be attached to the internal diameter of drilling components that have a substantially uniform drilling diameter. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to withstand the tension and compression of drill pipe during routine drilling cycles.
136 Citations
22 Claims
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1. An electrical transmission line retention mechanism in a pipe component having ends, comprising:
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a first slot formed in the pipe component intermediate its ends and exposed at an internal diameter of the pipe component;
a second slot, wider than the first slot, formed in the pipe component and aligned with and overlapping the first slot; and
the second slot also exposed at the internal diameter and terminating at one of the ends of the pipe component;
wherein the first and second slots also adapted to affix an electrical transmission line along the internal diameter of the pipe component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for mechanically retaining an electrical transmission line in a pipe component having ends, comprising:
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a coaxial cable, the coaxial cable comprising a conductive tube and a conductive core within it, the conductive tube having a first and a second outer diameter, the second outer diameter being larger than the first outer diameter;
a first slot formed in the pipe component intermediate its ends and exposed at an internal diameter of the pipe component;
a second slot, wider than the first slot, formed in the pipe component and aligned with and overlapping the first slot;
the second slot also exposed at the internal diameter and terminating at one of the ends of the pipe component; and
the conductive tube is disposed within the slits with the first and second slots forming complementary recesses with the first and second diameters of the conductive tube;
wherein the conductive tube is in electrical communication with the internal diameter of the pipe component. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A system for mechanically retaining an electrical transmission line for use in a rotary dull string, the drill string comprising individual drill components, each drill component containing the electrical transmission line, the system comprising;
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a drill component with a substantially uniform internal diameter with a pin end and a box end;
a coaxial cable, the coaxial cable comprising a conductive tube and a conductive core within it, the conductive tube having a first and a second outer diameter, the second outer diameter being larger than the first outer diameter;
a first slot formed in the pipe component intermediate its ends and exposed at an internal diameter of the pipe component;
a second slot, wider than the first slot, formed in the pipe component and aligned with and overlapping the first slot;
the second slot also exposed at the internal diameter and terminating at one of the ends of the pipe component;
the first and second slot forming an undercut; and
the conductive tube is disposed within the slots with the first and second slots forming complementary recesses with the first and second diameters of the conductive tube;
wherein the conductive tube is in electrical communication with the internal diameter of the drill component. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification