Baker Hughes Corporation

Well Resolutions Technology

Schlumberger Technology Corporation

Smith International, Inc.

Pathfinder Energy Services, Inc.

Services Petroliers Schlumberger

Schlumberger Holdings Limited

Prad Research and Development Limited

Tsili Wang

Roland Edward Chemali

Borislav J Tchakarov

Sheng Fang

Alexandre N Bespalov

Xiao Ming Tang

Gulamabbas A Merchant

Jack Signorelli

John A Signorelli

Douglas J Patterson

Michael Rabinovich

James V Leggett, Iii

Bill H Corley

Otto N Fanini

Stanislav W Forgang

Daniel T Georgi

Gregory Boris Itskovich

Leonty Abraham Tabarovsky

Liming Yu

Andrew Kirkwood

Wallace Harold Meyer

Bruce Ralph Carter

Martin Folberth

Paul Boonen

Eric Hart

Boris Tchakarov

Vladimir Dubinksy

Christopher C Streinz

Jing Li

Randy Gold

Vladimir Dubinsky

Andrew G Brooks

Stephen D Bonner

David R Beard

Luis M Pelegri

Alexei Bolshakov

Wei Han

Berthold Kriegshauser

Paul Gerard Cairns

Jun Zhang

Caimu Tang

Samuel Bell

Cynthia Xue

Richard A Mollison

Rene N Ritter

Xiao-Ming Tang

Rodney S Guenther

Adriaan A Bal

Thanh H Cao

David J Prosser

Edwinus Nicolaas Maria Quint

Lianhe Guo

Qiuzhao Dong

Boris J Tchakarov

James V Iii Leggett

A resistivity measuring tool used in a drillstring having a drill bit on a distal end for drilling a wellbore in a formation includes a tool body having a longitudinal axis, a transmitting antenna, and a receiving antenna. The receiving antenna includes an antenna body having a longer axis disposed longitudinally in the tool body, and a wire coil having a central axis disposed around the antenna body, wherein the wire coil central axis is substantially perpendicular to the longer axis of the antenna body, and wherein the wire coil is configured to generate a magnetic moment orthogonal to the tool body longitudinal axis. The transmitting antenna is configured to transmit electromagnetic energy into the formation and induce a voltage signal related to a parameter of the formation in the receiving antenna.

Apparatus and methods for making azimuthal resistivity measurements

The present application pertains to a universal bottom hole assembly node module. The module may comprise an azimuthal resistivity module, an azimuthal gamma module, a pressure while drilling module, or any combination thereof. A communication system may be configured to provide two way communication between two or more components of a bottom hole assembly, for example, between a rotary steerable system and a measurement while drilling system. This advantageously allows real time geosteering, well control, hydraulics analysis for drilling optimization, and/or evaluation of motor efficiency.

Universal bottomhole assembly node (UBHAN)

The present embodiments disclose a downhole communication technology involving slotted collar allowing electromagnetic waves to reach inserted probe receiver assembly. One embodiment shows transmitter/receiver as part of At Bit tool.

Systems and apparatus for downhole communication

A resistivity-measuring sensor disposable within a drillstring includes a sensor body having a longitudinal axis, wherein the sensor body is separable from and disposable in the drillstring at a radially offset distance from the longitudinal axis of the drillstring. The sensor further includes a transmitting antenna disposed along a length of the sensor body, a receiving antenna disposed along a length of the sensor body, and an electronics section contained within the sensor body for generating and receiving signals to and from the transmitting and receiving antennas.

Modular resistivity sensor for downhole measurement while drilling

The systems and methods provide a universal bottom hole assembly node module. The universal bottom hole assembly node module comprises an azimuthal resistivity module, an azimuthal gamma module, a pressure while drilling module, or any combination thereof. The universal bottom hole assembly node module includes a communication system configured to provide two way communication between a rotary steerable system and a measurement while drilling system.

Universal bottomhole assembly node (UBHAN) providing communications to and from rotary steerable systems (RSS) and real time azimuthal resistivity imaging for geosteering and pressure while drilling (FWD) for well control

A rotary steerable bottom hole assembly includes a drill bit disposed at a distal end thereof, and azimuthal resistivity antennas and electronics configured to measure a distance to a formation boundary.

Boundary tracking control module for rotary steerable systems

An apparatus for communicating with a downhole tool includes a sensor body including at least two electrodes electrically insulated from one another and an external control device configured to engage the two electrodes. Detection circuitry connected to the two electrodes is configured to monitor an electrical status across the two electrodes, through the external control device, and upon detecting a change in electrical status that matches a predefined pattern, communicate a command to power management circuitry to alter a power status of the downhole tool.

Apparatus and methods for communicating with a downhole tool

A resistivity measuring tool used in a drillstring having a drill bit on a distal end for drilling a wellbore in a formation includes a tool body having a longitudinal axis, a pair of transmitter antennas having magnetic moments parallel to the longitudinal axis of the tool body, and a pair of receiver antennas radially spaced from the longitudinal axis of the tool body and having transverse magnetic moment components pointed in opposite directions, wherein at least one of the receiver antennas has a transverse magnetic moment angled with respect to a component normal to the longitudinal axis of the tool body.

Apparatus and methods for making azimuthal resistivity measurements with off-set directional antennas

A microresistivity logging tool and method for making microresistivity measurements, of which the tool includes a logging tool body having a longitudinal axis, a transmitter coil deployed in the tool body, the transmitter coil including an electrical conductor wound about a magnetically permeable core, the electrical conductor being connected to a high frequency alternating current generator deployed in the tool body, a receiver coil deployed in the tool body and including an electrical conductor wound about a magnetically permeable core, the electrical conductor being connected to a high frequency alternating voltage sensor deployed in the tool body. The transmitter and receiver coils each define a coil axis that is substantially perpendicular to the longitudinal axis of the tool body. The receiver coil and the transmitter coil are coaxial and deployed in the same plane.

Apparatus and method for microresistivity imaging in which transmitter coil and receiver coil axes are substantially perpendicular to the longitudinal axis of the tool body

A rotary steerable system includes a non-rotating housing, azimuthal resistivity antennas and electronics, disposed within the non-rotating housing, configured to measure a distance to an approaching upper or lower formation boundary, and a control module configured to steer a drill bit along a well path and, based on measurements from the azimuthal resistivity antennas, to steer the housing away from the approaching upper or lower formation boundary and thereby maintain a certain distance between the steerable housing and upper or lower formation boundary.

A resistivity measuring tool used in a drillstring having a drill bit on a distal end for drilling a wellbore in a formation includes a tool body having a longitudinal axis, a sensor configured to measure the angular position of the tool body relative to the wellbore, at least one axial antenna including a wire winding for generating an axial magnetic moment parallel with the longitudinal axis, and at least one transverse antenna. The transverse antenna includes an antenna body disposed within a pocket extending radially inward from an outer surface of the tool body and one or more turns of wire wound around the antenna body, the wire winding generating a transverse magnetic moment orthogonal to the longitudinal axis.

A tool for communicating data between multiple locations downhole includes a tool body, a first antenna including at least one electrode disposed within a wall and electrically insulated from the tool body, and an electronic circuit configured to generate an encoded electrical signal and propagate the encoded signal through the electrode into a medium surrounding the tool, and a second antenna coupled to the tool body, and an electronic circuit configured to receive an electrical signal induced by the second antenna.

Apparatus and methods for communicating downhole data

Growing community of inventors

Katy, TX, United States of America

Tsili Wang