Downhole tool with receive antenna and proximate amplifier
AssigneeHalliburton Energy Services, Inc.
InventorsLiang Ge, Chin Wee Lim, Heen Wei Ng, Lucas Samuel Batista Santos
Life of this patent
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Abstract
A downhole tool includes a receive antenna configured to receive a signal from a surrounding formation, and a receive amplifier proximate to and coupled to the receive antenna. The receive amplifier is configured to provide an amplified signal responsive to the signal received by the receive antenna. The downhole tool also includes an electronics carrier, including receive circuitry, coupled to the receive amplifier by a conductor. The electronics carrier is positioned axially away from the receive antenna and the receive amplifier, and the receive circuitry is configured to receive and process the amplified signal.
Claims18
A downhole tool, comprising:
- a transmit antenna configured to transmit a signal to a surrounding formation;
- a receive antenna configured to receive the signal from the surrounding formation;
- a receive amplifier proximate to and coupled to the receive antenna, the receive amplifier configured to provide an amplified signal responsive to the signal received by the receive antenna;
- and
- a single insert electronics carrier including transmit circuitry configured to provide the signal to the transmit antenna, and receive circuitry coupled to the receive amplifier by a conductor;
- wherein the electronics carrier is positioned axially away from the receive antenna and the receive amplifier;
- and
- wherein the receive circuitry is configured to receive and process the amplified signal.
A method, comprising:
- transmitting, by a transmit antenna of a downhole tool, a signal into a surrounding formation;
- receiving, at a receive antenna of the downhole tool, the signal from the surrounding formation;
- amplifying the signal received by the receive antenna to produce an amplified signal;
- and
- transmitting the amplified signal by a conductor in the downhole tool to an electronics carrier of the downhole tool, wherein the electronics carrier is a single insert, positioned axially away from the receive antenna, and includes transmit circuitry that is configured to provide the signal to the transmit antenna;
- wherein the amplified signal is produced proximate to the receive antenna, and before the signal is transmitted by the conductor to the electronics carrier.
A receiver sensor of a downhole tool, the receiver sensor comprising:
- a receive antenna configured to receive a signal from a surrounding formation of the downhole tool;
- and
- a receive amplifier proximate to and coupled to the receive antenna, the receive amplifier configured to provide an amplified signal responsive to the signal received by the receive antenna;
- wherein the receive amplifier is adapted to be coupled to a single insert electronics carrier, including receive circuitry, by a conductor;
- wherein the electronics carrier includes transmit circuitry configured to provide the signal to a transmit antenna;
- and
- wherein the receiver sensor is configured to be positioned axially away from the electronics carrier in a downhole tool.
Dependencies are inferred from the claim text.