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    INSTRUMENTED SAW BLADE
    21.
    发明申请
    INSTRUMENTED SAW BLADE 有权

    公开(公告)号：US20240383055A1

    公开(公告)日：2024-11-21

    申请号：US18690720

    申请日：2022-10-12

    Applicant: Schlumberger Technology Corporation

    Inventor： Jonathan Robert Hird ,  Andrew David Robinson ,  Kjell Haugvaldstad

    IPC: B23D59/00 ,  B23D45/00

    Abstract: A control system for a saw blade used to cut slots in carbon anodes used in aluminum processing includes an instrument package installed on the saw blade. The instrument package includes one or more sensors used to measure one or more operating characteristics. If the operating characteristics are outside of a threshold operating characteristic. then one or more operating parameters of the saw blade can be adjusted. Example adjustments may be made to the rotational speed or depth of cut of the saw blade. or repair or replacement of cutting elements or the saw blade.

    FORMATION EVALUATION AT DRILL BIT
    23.
    发明申请
    FORMATION EVALUATION AT DRILL BIT 有权

    公开(公告)号：US20220381938A1

    公开(公告)日：2022-12-01

    申请号：US17769931

    申请日：2020-10-08

    Applicant: Schlumberger Technology Corporation

    Inventor： Jonathan Robert Hird ,  Ashley Bernard Johnson ,  John Mervyn Cook

    IPC: G01V3/30 ,  E21B10/42 ,  E21B10/26 ,  E21B47/013 ,  E21B47/017 ,  E21B49/00

    Abstract: In a drill bit which has hard-faced cutting or gauge protection elements positioned to be in direct contact with subterranean formation as the bit is rotated, at least one of these elements includes a window positioned to be in direct contact with the formation or cuttings from the formation as the bit rotates and moves forward to drill into the formation. Electromagnetic radiation with wavelength in the range from 100 nm to 2600 nm is transmitted through the window to the formation in contact with the window. Electromagnetic radiation such as fluorescence that returns through the same window is received by a spectrometer. The source and receiver of electromagnetic radiation are both accommodated within the downhole drilling equipment but spaced from the windowed element. The electromagnetic radiation travels along light guides from the source to the window and from the window to the receiver.

    ANTI-WHIRL STABILIZATION TOOLS AND METHODS
    25.
    发明申请
    ANTI-WHIRL STABILIZATION TOOLS AND METHODS 有权

    公开(公告)号：US20210131197A1

    公开(公告)日：2021-05-06

    申请号：US17075740

    申请日：2020-10-21

    Applicant: Schlumberger Technology Corporation

    Inventor： Huseyin Murat Panayirci ,  Jonathan Robert Hird ,  Joachim Sihler ,  Ashley Bernard Johnson

    IPC: E21B17/10 ,  E21B17/046 ,  E21B17/02

    Abstract: A method of mitigating whirl on a rotating device includes detecting force on a outer surface of the rotating device and switching the rotating device between a rotating mode and a non-rotating mode. In the rotating mode, the outer surface may rotate with an inner sleeve. In the non-rotating mode, the outer surface may be rotationally isolated from the inner sleeve. The rotating device may include a stabilizer with an active or passive system for switching modes. The stabilizer can include an outer collar, an inner sleeve, and a locking mechanism. The locking mechanism is changeable between a first mode in which the outer collar is rotationally fixed to the inner sleeve and a second mode in which the outer collar is rotationally isolated relative to the inner sleeve. An example passive device may include a magnetic clutch where the detected force overcomes magnetic forces to change mode.

    Milling tool and method
    26.
    发明授权
    Milling tool and method 有权

    公开(公告)号：US10760364B2

    公开(公告)日：2020-09-01

    申请号：US15553625

    申请日：2016-02-18

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Ashley Bernard Johnson ,  Jonathan Robert Hird

    IPC: E21B29/00

    Abstract: Tubing in a borehole is removed using a rotary milling tool comprising a plurality of elements projecting from or extensible from the body of the tool. The elements are distributed azimuthally around the tool body. The elements comprise cutters to remove material from the tubing and outward facing guide surfaces for sliding contact with an inner surface of the tubing. As the tool is rotated and advanced, forward cutters contact the inner surface removing material from the tubing and exposing a renewed interior tubing surface with a diameter swept out by the cutter. The outward facing guide surfaces extend the same distance from the tool body as the forward cutters producing a sliding contact with the newly created inward facing surface. Further cutters, disposed behind the outward facing guide surfaces, with respect to motion of the tool through the tubing, remove the remaining portion of the tubing.

    Expandable reamer
    27.
    发明授权
    Expandable reamer 有权

    公开(公告)号：US10415318B2

    公开(公告)日：2019-09-17

    申请号：US15102039

    申请日：2014-12-08

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Ashley Bernard Johnson ,  Jonathan Robert Hird

    IPC: E21B10/32 ,  E21B17/10 ,  E21B7/28

    Abstract: An expandable reamer for a borehole has a plurality of support elements (202) distributed around a central axis of the tool with cutters (234, 236) and stabilising pads (250) on the support elements, arranged such that at least one of the support elements comprises at least one region comprising cutters and at least one support element comprises a stabilising pad having a front surface positioned to face the wall of the borehole. The reamer includes drive mechanism for expanding the support elements (202) radially outwardly from the central axis. The support elements differ in the presence or axial positions of stabilising pads (250) thereon such that at least one support element differs from at least one other support element in the presence or axial position of at least one stabilising pad. This arrangement allows the stabilising pads to be positioned at or close to full gauge, thereby reducing vibration.

    ROTARY CUTTING TOOL
    28.
    发明申请
    ROTARY CUTTING TOOL 审中-公开

    公开(公告)号：US20180179825A1

    公开(公告)日：2018-06-28

    申请号：US15579221

    申请日：2016-06-02

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Ashley Bernard Johnson ,  Jonathan Robert Hird

    IPC: E21B10/32 ,  E21B29/00 ,  E21B7/28

    Abstract: A downhole cutting tool which may be a reamer or a mill has a rotary tool body with at least one block which carries hard-faced cutters and projects or is extensible from the tool body. A radially outward facing part of the cutter block defines a channel for fluid flow which extends generally axially along the cutter block. The channel is configured such that at least the rotationally trailing edge of the channel extends along the block in one or more directions which are inclined relative to the tool axis. This reduces or avoids the amount of channel edge parallel to the tool axis and thereby mitigates whirling and/or or vibration.

    EXPANDABLE REAMER
    29.
    发明申请
    EXPANDABLE REAMER 有权
    可扩展的REAMER

    公开(公告)号：US20160305190A1

    公开(公告)日：2016-10-20

    申请号：US15102039

    申请日：2014-12-08

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Ashley Bernard Johnson ,  Jonathan Robert Hird

    IPC: E21B10/32 ,  E21B17/10 ,  E21B7/28

    CPC classification number: E21B10/32 ,  E21B7/28 ,  E21B17/1078 ,  E21B17/1092

    Abstract: An expandable reamer for a borehole has a plurality of support elements (202) distributed around a central axis of the tool with cutters (234, 236) and stabilising pads (250) on the support elements, arranged such that at least one of the support elements comprises at least one region comprising cutters and at least one support element comprises a stabilising pad having a front surface positioned to face the wall of the borehole. The reamer includes drive mechanism for expanding the support elements (202) radially outwardly from the central axis. The support elements differ in the presence or axial positions of stabilising pads (250) thereon such that at least one support element differs from at least one other support element in the presence or axial position of at least one stabilising pad. This arrangement allows the stabilising pads to be positioned at or close to full gauge, thereby reducing vibration.

    Abstract translation: 用于钻孔的可扩展铰刀具有多个支撑元件（202），所述多个支撑元件（202）围绕所述工具的中心轴线分布，所述刀具具有所述支撑元件上的切割器（234,236）和稳定垫（250），所述支撑元件布置成使得所述支撑件中的至少一个 元件包括至少一个包括切割器的区域，并且至少一个支撑元件包括具有定位成面对钻孔壁的稳定垫。 铰刀包括用于从中心轴径向向外扩展支撑元件（202）的驱动机构。 支撑元件在其上的稳定垫（250）的存在或轴向位置不同，使得在至少一个稳定垫的存在或轴向位置中至少一个支撑元件与至少一个其它支撑元件不同。 这种布置允许稳定垫定位在或接近全量规，从而减少振动。

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