Wired tool string component
First Claim
Patent Images
1. A system comprising:
- first and second tubular tool string components, each component having a shoulder at a first end and a second end, the first shoulder of the first component being coupled to the second shoulder of the second component through mating threads;
first and second inductive coils comprising at least one turn of an electrical conductor lying within a U-shaped magnetically conductive, electrically insulating trough disposed within a groove formed in the first shoulder of the first component and another U-shaped magnetically conductive, electrically insulating through disposed within another groove formed in the second shoulder of the second component, respectively, the first coil being in magnetic communication with the second coil;
wherein the first coil has more turns than the second coil; and
wherein the ratio of the number of turns between the 1st and 2nd coils is selected to optimize the frequencies for the transmission of signals; and
wherein the troughs are brought into proximity of each other when the ends of the components are joined together to perform communication between the coils.
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Abstract
A system is disclosed as having first and second tubular tool string components. Each component has a first end and a second end, and the first end of the first component is coupled to the second end of the second component through mating threads. First and second inductive coils are disposed within the first end of the first component and the second end of the second component, respectively. Each inductive coil has at least one turn of an electrical conductor, and the first coil is in magnetic communication with the second coil. The first coil has more turns than the second coil.
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Citations
18 Claims
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1. A system comprising:
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first and second tubular tool string components, each component having a shoulder at a first end and a second end, the first shoulder of the first component being coupled to the second shoulder of the second component through mating threads; first and second inductive coils comprising at least one turn of an electrical conductor lying within a U-shaped magnetically conductive, electrically insulating trough disposed within a groove formed in the first shoulder of the first component and another U-shaped magnetically conductive, electrically insulating through disposed within another groove formed in the second shoulder of the second component, respectively, the first coil being in magnetic communication with the second coil; wherein the first coil has more turns than the second coil; and
wherein the ratio of the number of turns between the 1st and 2nd coils is selected to optimize the frequencies for the transmission of signals; and
wherein the troughs are brought into proximity of each other when the ends of the components are joined together to perform communication between the coils. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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a tubular tool string component having a first end and a second end;
first and second magnetically conducting, electrically insulating troughs disposed within grooves formed in shoulders of the first and second ends of the downhole component, respectively, each trough comprising an electrical coil having at least one turn lying therein, the electrical coil of the first trough comprising more turns than the electrical coil of the second trough;
wherein the ratio of the number of turns between the 1st and 2nd coils is selected to optimize the frequencies for the transmission of signals; andan electrical conductor comprising a first end in electrical communication with the electrical coil of the first trough and a second end in electrical communication with the electrical coil of the second trough; and wherein the troughs are brought into proximity of each other when the ends of the components are joined together to perform communication between the coils. - View Dependent Claims (11, 12)
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13. A method comprising:
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providing a data transmission system comprising a plurality of wired drill pipe interconnected through inductive couplers, each inductive coupler having at least one turn of an electrical conductor, the couplers comprising a coil lying within a U-shaped trough of magnetically conductive, electrically insulating material disposed within shoulders located at ends of the pipe, the troughs being in proximity to each other; generating downhole an electric current having a voltage;
transmitting the electric current to a downhole tool through the data transmission system;altering the voltage of the electric current through an unequal turn ratio in at least one pair of inductive couplers;
wherein the ratio of the number of turns between the 1st and 2nd coupler is selected to optimize the frequencies for the transmission of signals. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification