Inductive Cavity Sensors for Resistivity Tools
First Claim
Patent Images
1. An apparatus comprising:
- a conductive tool body;
a first magnetic cavity transmitter in the conductive tool body;
a first magnetic cavity receiver in the conductive tool body;
a first transmit module coupled to the first magnetic cavity transmitter; and
a first receiver module coupled to the first magnetic cavity receiver.
1 Assignment
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Accused Products
Abstract
A first magnetic cavity transmitter is in the conductive tool body. A first magnetic cavity receiver is in the conductive tool body. A first transmit module is coupled to the first magnetic cavity transmitter. A first receiver module is coupled to the first magnetic cavity receiver.
10 Citations
46 Claims
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1. An apparatus comprising:
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a conductive tool body; a first magnetic cavity transmitter in the conductive tool body; a first magnetic cavity receiver in the conductive tool body; a first transmit module coupled to the first magnetic cavity transmitter; and a first receiver module coupled to the first magnetic cavity receiver. - View Dependent Claims (2, 3, 4, 6, 7, 9)
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5. (canceled)
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8. (canceled)
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10. An apparatus comprising:
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a conductive tool body comprising; a first transmitter comprising; a first transmitter annular cavity that encircles the conductive tool body, a first transmitter surface gap that encircles the conductive tool body and electromagnetically couples the first transmitter annular cavity to an external surface of the conductive tool body, and a first transmitter ring of high magnetic permeability material in the first transmitter annular cavity; a first receiver comprising; a first receiver cavity, a first receiver surface gap that electromagnetically couples the external surface of the conductive tool body to the first receiver annular cavity, and a first high magnetic permeability material in the first receiver annular cavity; a first transmitter module coupled to opposite sides of the first transmitter surface gap to induce an electric current around the first transmitter annular cavity; and a first receiver module coupled to opposite sides of the first receiver surface gap to detect currents induced around the first receiver annular cavity. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21-44. -44. (canceled)
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45. An apparatus comprising:
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a conductive tool body; a first magnetic cavity transmitter in the conductive tool body; a first magnetic cavity receiver in a member coupled to the conductive tool body; a first transmit module coupled to the first magnetic cavity transmitter; and a first receiver module coupled to the first magnetic cavity receiver. - View Dependent Claims (46)
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Specification