Halliburton Energy Services, Inc.

Doyle Raymond, II Warren

Bipin Kumar Pillai

Michael Dewayne Finke

Cili Sun

Laban M Marsh

Paul F Rodney

Christopher A Golla

Paul D Beene

Ii Warren Doyle Raymond

Ron Dirksen

Ben Musgrave

Bhargav Hariprasad Patel

Victor Alexander Artiga

Robello Samuel

Ketan Chimanlal Bhaidasna

Nazli Demirer

Michael John Strachan

Vy Pho

William David Bethancourt

Billy C Bankston

Min Wu

Doyle Raymond Warren, Ii

Alp Kozak

Alfred Fung

Marcus Leo Avery

Jay Martin

Leonardo Viana

Robert Alan Friedrich

Fernando Costa Oliveira Chagas

Chris A Golla

Kiran Gopala Sunanda

Siong Ming Wong

Doyle Raymond Warren

Systems and methods of the present disclosure are directed to systems and methods for controlling a wellbore drilling apparatus where the system may include a surface controller and a downhole controller. In certain instances, control of the drilling apparatus may be transferred from the surface controller to the downhole controller. The control of the drilling apparatus may be transferred to the downhole controller as the surface control monitors operation of the drilling operation. The surface controller may also send a command that transfers control of the drilling apparatus from the downhole controller to the surface controller.

Closed loop fully autonomous directional drilling

In accordance with some embodiments of the present disclosure, methods and systems for modeling an advanced 3-dimensional bottomhole assembly are disclosed. The method may include determining a drill string property for a drill string having a rotary steerable drill bit; determining a drilling parameter for a drilling operation; generating a finite element model of the drill string based on the drill string property and the drilling parameter; performing a vibrational analysis of the finite element model; and predicting a drill string behavior during the drilling operation based on the vibrational analysis, the drill string behavior including a directional behavior, rate of penetration, or drilling efficiency of the rotary steerable drill bit.

Methods and systems for modeling an advanced 3-dimensional bottomhole assembly

A system for drilling a well comprises a drill string in a wellbore having a bit at a distal end thereof. At least one sensor measures a drilling parameter. A computer controller has a set of instructions stored therein to process the measured drilling parameter over a drilled interval to calculate, in substantially real time, an updated friction slope and an updated worn bit slope and to calculate an updated drilling parameter for at least a portion of the well-based on the updated friction slope and the updated worn bit slope.

Method and system for predicting performance of a drilling system

One embodiment includes an apparatus that includes a storage medium to store data. The apparatus also includes a connector having an optical interface for data communication, coupled to the storage medium, to communicate in a combustible gas environment.

Optical communications with a bottom hole assembly

A method and related apparatus for telemetry between downhole devices and surface devices. In particular, the methods and related apparatus may send a first datum of a first parameter in an uncompressed form, and send a second datum of the first parameter in compressed form.

Method and apparatus for telemetry

Method and apparatus for mud pulse telemetry

The specification discloses algorithms for error recovery in pulse position modulation-based mud pulse telemetry. More particularly, the specification discloses detection and attempted correction of at least five possible error mechanisms: the missed detection of a pulse that creates an interval greater than maximum; the missed detection of a pulse that results in an interval still within acceptable boundaries; detection of an extra pulse; a pulse shift that results in data in contiguous intervals being affected; and a pulse shift resulting in a single interval data corruption.

Data recovery for pulse telemetry using pulse position modulation

A downlink telemetry system providing improved apparatus and methods for communicating instructions via pressure pulses from surface equipment to a downhole assembly. The apparatus comprises a surface transmitter for generating pressure pulses, a control system, and a downhole receiver for receiving and decoding pulses. In operation, a bypass valve is opened and closed to create a series of pressure pulses received and decoded by a downhole receiver. The method significantly reduces the time required for downlink communication without interrupting drilling and without interrupting uplink communications such that simultaneous, bi-directional communication is achievable if the uplink and downlink signals are sent at different frequencies. The telemetry scheme and algorithm provide an inventive method for filtering and decoding the downlink signals. The algorithm determines the time intervals between pulse peaks and decodes the intervals into an instruction. The algorithm also includes error checking for verifying that the instruction was properly received downhole.

Downlink telemetry system

A mud pulse telemetry technique that uses a number of bits per interval based on parameters of the pulse position modulation system in order to reduce data transfer time in a pulse position modulation system. More particularly, depending on parameters of the pulse position modulation such as the minimum-time and the bit-width, it may be possible to decrease overall transmission time by splitting values having a larger number of bits into multiple transmissions with each transmission having a smaller number of bits.

Structure and method for pulse telemetry

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Sugar Land, TX, United States of America

Cili Sun