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US 10,883,318 B2Granted
Inductive coupling
AssigneeSanvean Technologies LLC
InventorsJunichi Sugiura, Stephen Jones
Life of this patent
Estimating the term…
Abstract
An inductive coupler includes a first transceiver electrically coupled to a first coil through a first tuning circuit. The inductive coupler may also include a second transceiver electrically coupled to a second coil through a second tuning circuit, where the second coil is positioned substantially concentric with the first coil.
Claims17
A downhole communication system, comprising:
- a first transceiver positioned in an annular collar and electrically coupled to a first coil through a first tuning circuit;
- a second transceiver positioned in a probe electrically coupled to a second coil through a second tuning circuit;
- third and fourth coils, the third and fourth coils being electrically coupled by an intermediate tuning circuit;
- wherein the probe is positioned within the annular collar,
- wherein the third coil is inductively coupled to the first coil and the fourth coil is inductively coupled to the second coil, whereby the first transceiver, first tuning circuit, first coil, third coil, intermediate tuning circuit, fourth coil, second coil, second tuning circuit, and second transceiver are arranged in series;
- and
- wherein the first and second tuning circuits are dual-tuned such that first, second, third, and fourth coils are configured to transmit data at a first frequency and to transmit power at a second frequency that is lower than the first frequency.
4 more elements
A method for communicating in a downhole system, comprising:
- a) providing a collar that includes a first transceiver electrically coupled to a first coil through a first tuning circuit;
- b) providing a probe that includes second transceiver electrically coupled to a second coil through a second tuning circuit;
- c) providing third and fourth coils, the third and fourth coils being electrically coupled by an intermediate tuning circuit;
- and
- d) inductively coupling the third coil to the first coil and inductively coupling the fourth coil to the second coil, whereby the first transceiver, first tuning circuit, first coil, third coil, intermediate tuning circuit, fourth coil, second coil, second tuning circuit, and second transceiver are arranged in series;
- and
- wherein the first second tuning circuits are dual-tuned to two resonant frequencies, one of the resonant frequencies being higher than the other resonant frequency;
- and
- e) using the first, second, third, and fourth coils to transmit electrical data at the higher resonant frequency and to transmit electrical power at the lower resonant frequency.
6 more elements
Dependencies are inferred from the claim text.