Schlumberger Technology Corporation

Onesubsea IP UK Limited

Intelliserv, Inc.

Meta Platforms, Inc.

Julius Kusuma

Andriy Gelman

Arnaud Jarrot

Michael Andrew Montgomery

Arnaud Croux

Luis Eduardo DePavia

David Conn

Robert W Tennent

Martin D Hurlimann

Liang Sun

Jack Vincent

Neil Herbst

Adeel Mukhtar

Yi-Qiao Song

Martin E Poitzsch

Jean P Seydoux

David G Cory

Sudhir Pai

Carlos Merino

Desheng Zhang

Clement Probel

Brian E Boling

Reza Taherian

Joachim Sihler

Stephane Vannuffelen

Soumyajit Mandal

Nader Salman

Abhishek Tiwari

Raphael Gadot

Stephen Dyer

Pratheep Bondalapati

Ali Yazdan

Jeffrey Paulsen

Christopher C Bogath

Farbod Tabatabai

Randall LeBlanc

Tim Hopper

Frederic Latrille

Francois Clouzeau

Timothy Andrew John Hopper

Duong Pham

Laurent Carteron

Brian Gaddis

Jeehong Yang

Jimmy Varughese

Federic Latrille

Rohan Ramakrishnan

A method for controlling a subsea vehicle. The method includes receiving sensor data representing a subsea environment from one or more sensors of the subsea vehicle. The method identifies one or more objects present in the subsea environment based on the sensor data using an artificial intelligence machine. The method transmits at least a portion of the sensor data, including an identification of the one or more objects, to a user interface. The method includes receiving a requested vehicle task from the user interface. The requested vehicle task being selected by a user via the user interface. The method performs the requested vehicle task without vehicle position control from the user.

Systems and methods of pilot assist for subsea vehicles

A method for transmitting signals in a subsea environment includes determining that a quality of an acoustic signal is below a threshold. The acoustic signal travels from a first device, through water in the subsea environment, to a second device. A parameter of the first device, the second device, or both is then adjusted to improve the quality of the acoustic signal when the quality of the acoustic signal is below the threshold.

Subsea oilfield communications system

The present disclosure describes methods and systems that can be used for controlling and coordinating the transmission of electromagnetic telemetry signals from and/or to a plurality of downhole tools to minimize or reduce electromagnetic interference between the transmissions. Signal coordination control is also disclosed that allows for duplex bidirectional communication of transmissions of electromagnetic telemetry signals such that electromagnetic interference between the transmissions is minimized or reduced.

Downhole electromagnetic network

Apparatuses, methods, and systems for surveying a site are disclosed. One method includes transmitting, by a ground unit, wireless signals while a directionally adjustable beam-forming antenna of the ground unit changes a beam direction of the transmission of the wireless signals to N beam directions, wherein the directionally adjustable beam-forming antenna includes a known motion, receiving and measuring, by an elevated unit, a magnitude and phase of the wireless signals transmitted by the ground unit through the N beam directions, determining N complex receive power representations wherein each complex receive power representation includes the measured magnitude and phase of the received wireless signals corresponding with each of the N beam directions, and determining a receive power summation comprising performing a complex summation of the N complex receive power representations.

Site survey for wireless base station placement

A method is described for performing, by a processor, one or more queries on one or more sensors, for one or more data collected by the one or more sensors, at predetermined instants of time by a downhole modem operably coupled to the one or more sensors, prior to receiving a request for transmission of the data from a surface modem. The method also includes receiving, by the processor, one or more data from one or more sensors in response to the one or more queries, and storing, by the processor, the one or more data in a buffer coupled to the downhole modem.

Compression and timely delivery of well-test data

A method, subsea device, and system, of which the method includes acquiring data using one or more sensors of the subsea device, the data representing a subsea environment, compressing the data using one or more processors of the subsea device, transmitting the data wirelessly from the subsea device to the surface device, and decompressing the data using the surface device.

Data compression for communication in subsea oil and gas systems

A downhole tool and a wired drill string assembly including a downhole tool. The downhole tool includes a body having a first connector and a second connector. At least the first connector is configured to be connected to a wired drill pipe. The downhole tool also includes one or more electrical components coupled to the body and configured to receive a first signal and transmit a second signal. The downhole tool further includes a first transmission line extending along the body to the first connector and electrically connected to the one or more electrical components. The first transmission line is configured to be electrically connected to a transmission wire of the wired drill pipe when the wired drill pipe is connected to the first connector.

Wired drill pipe connector and sensor system

Sensor array noise reduction is provided. Techniques involve systems and methods for reducing sensor array noise by estimating an instantaneous frequency of a coherent noise signal in a logging system. The instantaneous frequency may be estimated based on a rotation of an electric motor in the logging system, or may estimated by applying suitable signal processing algorithms on measurements in the logging system. A virtual measurement may be computed using the instantaneous frequency. The virtual measurement may be demodulated to obtain a baseband signal, and noise may be removed from the baseband signal to obtain a denoised signal.

Sensor array noise reduction

A method for configuring transmission signals is disclosed. The method includes receiving a signal from a downhole tool in a wellbore. The signal may include a telemetry portion and a noise portion. The method also includes reproducing the telemetry portion based at least partially on the signal. Further, the method includes subtracting the telemetry portion from the signal. The method includes estimating, based at least partially on the subtraction, the noise portion of the signal. The method also includes altering a transmission configuration of the downhole tool based at least partially on the noise portion of the signal.

Methods and systems for spectrum estimation for measure while drilling telemetry in a well system

An acoustic network is located in a formation traversed by a borehole having a pipe contained therein. The acoustic network includes a backbone network having a number of backbone modems engaging the pipe and acoustically communicating along the pipe using a first modulation technique. A number of end node modems acoustically communicate using a second modulation technique orthogonal to the first modulation technique. At least one of the backbone modems is a bridge hub modem that is coupled to both the backbone network and an end node modem and communicates with the backbone network using the first modulation technique and with the end node modem using the second modulation technique. The end node modems may have a hibernation mode defined by low energy usage with no transmission or receipt of data, and a transmission mode defined by transmission of data by the end node modem.

Heterogeneous downhole acoustic network

Methods and systems are provided for tools having non-resonant circuits for analyzing a formation and/or a sample. For example, nuclear magnetic resonance and resistivity tools can make use of a non-resonant excitation coil and/or a detection coil. These coils can achieve desired frequencies by the use of switches, thereby removing the requirement of tuning circuits that are typical in conventional tools.

Non-resonant logging tools

A method for improving a quality of data received from a downhole tool in a wellbore includes receiving a first block of data from a downhole tool in a wellbore. The first block of data represents a first measurement captured by the downhole tool during a first period of time. At least a portion of a bit budget for a second block of data is allocated to the first block of data to produce an updated first block of data. The method also includes receiving the second block of data from the downhole tool in the wellbore. The second block of data represents a second measurement captured by the downhole tool during a second period of time.

Real-time electromagnetic telemetry system

A modem is described having a transceiver assembly, a non-transitory processor readable medium coupled to the transceiver assembly, transceiver electronics coupled to the transceiver and the non-transitory processor readable medium, and a power supply supplying power to the transceiver assembly and the transceiver electronics. The transceiver electronics are configured to calculate a size of an output bit stream based on an encoding scheme to encode for transmission data stored in the non-transitory processor readable medium, decimate the data if the size of the output bit stream exceeds a predetermined size, recalculate the size of the output bit stream, after decimation of the data, based on the encoding scheme to encode for transmission the decimated data, and encode the data using the encoding scheme.

Growing community of inventors

Arlington, MA, United States of America

Julius Kusuma