Halliburton Energy Services, Inc.

Heen Wei Ng

Minh Dang Nguyen

Anand Prakash

Chin Wee Lim

Liang Ge

Lucas Samuel Batista Santos

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.

Downhole tool with receive antenna and proximate amplifier

A connector ring comprising a body extending along a longitudinal axis and two sets of sensor connectors. The first set of sensor connectors comprises one or more transmitter sensor connectors coupled with the body and extending parallel to the longitudinal axis, the one or more transmitter sensor connectors having a first end. The second set of sensor connectors comprises one or more receiver sensor connectors coupled with the body and extending parallel to the longitudinal axis, the one or more receiver sensor connectors having a first end. The first end of the transmitter sensor connectors and the first end of the receiver sensor connectors are staggered along the longitudinal axis.

Connector ring

Aspects of the subject technology relate to a circuit board mounting assembly for use in a downhole tool. The assembly can include a sleeve comprising a plurality of flaps and a circuit board disposed on the proximal end of the sleeve and secured by the plurality of flaps. The assembly can include a hollow housing comprising a shoulder on an interior surface of the housing at a proximal portion of the housing and a circuit board disposed on the shoulder of the housing. The assembly can further include a groove disposed on the interior surface and a ring disposed within the groove. The assembly can further include a threaded portion on the interior surface extending from a distal end of the housing and a nut threadedly engaged with the threaded portion of the housing. An example method for mounting a circuit board in a downhole tool can include disposing a circuit board on a shoulder of a housing, engaging a periphery of the circuit board, inserting the housing within a cavity of a downhole tool and installing a cap over the cavity to prevent removal of the housing from the downhole tool.

Circuit board mounting in confined space

An antenna shield latches around a mandrel or wellbore tubular to protect an antenna carried by the mandrel. The antenna shield opens to facilitate installation over the mandrel, and closes the around the antenna to provide robust protection from the downhole environment. Radial sections of the antenna shield are coupled to one another such that the antenna shield maintains a one piece construction, and the sections may pivot to move the antenna shield between open and closed configurations. Readily opening and closing the antenna shield facilitates maintenance and repair of the antenna and reusability of the antenna shield. Other components of a logging tool system, e.g., stabilizers, may also be provided with a similar latch mechanism for coupling to an outer diameter of the wellbore tubular.

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Singapore, Singapore

Heen Wei Ng