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    Telemetry scheme with a constant insensible group delay
    2.
    发明授权
    Telemetry scheme with a constant insensible group delay 有权

    公开(公告)号：US12120202B2

    公开(公告)日：2024-10-15

    申请号：US17382732

    申请日：2021-07-22

    申请人： HALLIBURTON ENERGY SERVICES, INC.

    发明人： Yadong Wang ,  Xiang Wu

    IPC分类号： H04L69/04 ,  E21B43/26 ,  E21B47/135 ,  G06F13/00

    CPC分类号： H04L69/04 ,  E21B43/26 ,  E21B47/135 ,  G06F13/00

    摘要： Aspects of the subject technology relate to systems and methods for optimizing telemetry schemes with a constant insensible group delay. Systems and methods are provided for receiving an acquisition including compressed data and dummy data from a downhole logging system, determining a prior decompressor queue size based on the acquisition for a plurality of time intervals, determining a decompressor data size based on the acquisition for the plurality of time intervals, and determining a delay where the prior decompressor queue size is continuously greater than or equal to the decompressor data size for the plurality of time intervals.

    Downhole rotary slip ring joint to allow rotation of assemblies with multiple control lines
    3.
    发明授权
    Downhole rotary slip ring joint to allow rotation of assemblies with multiple control lines 有权

    公开(公告)号：US12091918B2

    公开(公告)日：2024-09-17

    申请号：US17721182

    申请日：2022-04-14

    申请人： Halliburton Energy Services, Inc.

    发明人： David Joe Steele

    IPC分类号： E21B17/02 ,  E21B33/124 ,  E21B41/00 ,  E21B43/26 ,  E21B47/135

    CPC分类号： E21B17/028 ,  E21B17/025 ,  E21B17/026 ,  E21B33/124 ,  E21B41/0035 ,  E21B43/26 ,  E21B47/135

    摘要： Provided is a downhole rotary slip ring joint, a well system, and a method for accessing a wellbore. The downhole rotary slip ring joint, in one aspect, includes an outer mandrel, an inner mandrel operable to rotate relative to the outer mandrel, first and second outer mandrel communication connections coupled to the outer mandrel. The downhole rotary slip ring joint, according to this aspect, further includes first and second inner mandrel communication connections coupled to the inner mandrel, a first and second passageway extending through the outer mandrel and the inner mandrel, the first and second passageway configured to provide continuous coupling between the second outer mandrel communication connection and the second inner mandrel communication connection regardless of a rotation of the inner mandrel relative to the outer mandrel, wherein the downhole rotary slip ring joint is operable to be coupled to a wellbore access tool.

    Hydrocarbon evaluation systems
    5.
    发明授权
    Hydrocarbon evaluation systems 有权

    公开(公告)号：US12044123B2

    公开(公告)日：2024-07-23

    申请号：US18298163

    申请日：2023-04-10

    申请人： Saudi Arabian Oil Company

    发明人： Wisam Al Kawai ,  Abrar Alabbad

    IPC分类号： E21B47/13 ,  E21B47/135 ,  E21B49/00 ,  E21B49/08 ,  G01N21/17 ,  G01V1/50

    CPC分类号： E21B47/135 ,  E21B49/003 ,  E21B49/087 ,  G01N21/17 ,  G01V1/50 ,  G01N2021/177 ,  G01V2210/1299

    摘要： Systems and methods for evaluating hydrocarbon properties. At least one of the systems includes: a drilling machine configured to drill a borehole; a plurality of infrared cameras configured to capture infrared image data representing a plurality of infrared images of at least one core sample extracted from the borehole; a computer-readable memory comprising computer-executable instructions; and at least one processor configured to execute the computer-executable instructions, in which when the at least one processor is executing the computer-executable instructions, the at least one processor is configured to carry out operations including: receiving the infrared image data captured by the plurality of infrared cameras; determining, based on the infrared image data, at least one hydrocarbon weight value of the at least one core sample.

    Downhole fiber optic transmission for real-time well monitoring and downhole equipment actuation
    6.
    发明授权
    Downhole fiber optic transmission for real-time well monitoring and downhole equipment actuation 有权

    公开(公告)号：US12025000B2

    公开(公告)日：2024-07-02

    申请号：US18453214

    申请日：2023-08-21

    申请人： Dril-Quip, Inc.

    发明人： Frank D. Kalb ,  Justin D. Gorhum

    IPC分类号： E21B47/135 ,  E21B19/02 ,  E21B33/043

    CPC分类号： E21B47/135 ,  E21B19/02 ,  E21B33/043

    摘要： A subsea wellhead system includes: a hanger including a first fiber optic cable; a tree including a second fiber optic cable; a seal sub configured to be coupled to the tree and engaged with the hanger, the seal sub including a fiber optic communications line configured to be communicatively coupled to the first and second fiber optic cables; a transducer configured to be disposed at a downhole location and configured to be communicatively coupled to the first fiber optic cable; a first photodetector disposed in the hanger and configured to convert a light signal traveling through the first fiber optic cable from downhole to an electrical signal communicated to the electrical connection; and a first optical transmitter disposed in the seal sub and configured to convert the electrical signal traveling through the electrical connection into a light signal communicated to the second fiber optic cable.