Baker Hughes Oilfield Operations LLC

Baker Hughes, a Ge Compnay, LLC

Dominik Hoheisel

Thomas Kruspe

Gunnar Tackmann

Sebastian Jung

Veronica Vanessa Herrera Bano

Michael Joseph Mannas

Alexander Mayer

Alexey Bondarenko

Jonathan Leong

Lennert Rabe

A drilling system includes a method of determining an orientation of a drill string in a borehole. Sensor readings of a magnetic field of a drill bit are obtained at a plurality of positions along a curve extending around the drill bit along a longitudinal bit axis from a first location to a second location. A drill string includes the drill bit and a downhole magnetic field sensor that obtains a measurement of a local earth magnetic field, wherein the measurement is affected by the magnetic field of the drill bit. A processor determines a magnetic dipole moment of the drill bit from the plurality of sensor readings, calculates a second measurement of the local earth magnetic field downhole using the magnetic dipole moment of the drill bit, and determines the orientation of the drill string from the calculated correction of the measurement of the local earth magnetic field.

Method of measurement near-bit magnetic compass reading interference from a downhole component

A method of estimating a magnetic property of a downhole component includes measuring a magnetic field strength of the downhole component at a plurality of axial locations along the downhole component to generate a plurality of magnetic field strength measurements, each magnetic field strength measurement taken in a near field region of the downhole component, and analyzing the magnetic field measurements to estimate a magnetic signature of the downhole component. The method also includes estimating an expected maximum pole strength of the downhole component based on the magnetic signature, and configuring the downhole component in a borehole string based on the expected maximum pole strength.

Downhole component magnetic property estimation

Methods, systems, devices, and products for acoustic detection in a borehole. Apparatus embodiments comprise an acoustic sensor including a pressure transducer comprising: an interface between a fluid reservoir and a fluid body, the interface including a flexing member attached to an optical medium, the pressure transducer configured to convert an acoustic pressure signal within a nominal borehole pressure incident on the pressure transducer to an alternating strain on the optical medium along an axis of the medium via movement of the flexing member, the acoustic pressure signal propagated via the fluid body; a detector configured to generate acoustic measurement information responsive to received electromagnetic radiation transmitted through the medium along the axis, at least one optical property of the medium being responsive to the alternating strain on the medium; and at least one coupled oscillator displacing a volume of the fluid reservoir responsive to the acoustic pressure signal to modify conversion by the flexing member of signal components of the acoustic pressure signal having a frequency within a predefined frequency range into strain of the optical medium, so that the electromagnetic radiation received by the detector represents a modified acoustic signal.

Downhole fiber optic hydrophone

A down-hole tool includes at least one wall. The at least one wall may include a plurality of joined substantially parallel layers of material, a plurality of pockets defined within the at least one wall, each pocket of the plurality of pockets including a plurality of openings formed in consecutive layers of the plurality of joined substantially parallel layers of material, and a plurality of recesses defined within the at least one wall and between layers of the plurality of joined substantially parallel layers of material, the plurality of recesses defining at least one conduit. The down-hole tool also includes at least one electronic component disposed within a pocket of the plurality of pockets and at least one electrical connection disposed within the at least one conduit.

Down-hole tools comprising layers of materials and related methods

Apparatus and methods directed to an assembly associated with a downhole tool, and including: a thermal housing; at least one internal component inside the thermal housing, wherein the at least one internal component comprises at least one thermally sensitive component; and a thermal isolation support connecting the at least one internal component to the tool. The thermal isolation support may comprise an additive manufacturing structural framework connected to the tool. The structural framework may include a plurality of structural members, with a majority of the plurality of structural members substantially non-parallel with a longitudinal axis of the downhole tool.

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Hemmingen, Germany

Dominik Hoheisel