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    MONITORING DRILLING PARAMETERS
    1.
    发明申请
    MONITORING DRILLING PARAMETERS 有权

    公开(公告)号：US20250034989A1

    公开(公告)日：2025-01-30

    申请号：US18783506

    申请日：2024-07-25

    Applicant: Schlumberger Technology Corporation

    Inventor： Jonathan Robert Hird ,  Ashley Bernard Johnson

    IPC: E21B47/017 ,  E21B7/04 ,  E21B44/00 ,  E21B47/013 ,  G01L5/00

    Abstract: Methods and systems are provided for monitoring operational characteristics of a drilling system that includes a bottom hole assembly having a drill collar operably coupled to a drill bit. A device having an elongate beam and at least one pair of sensors is rigidly secured to a part of the bottom hole assembly to measure strain in the part of the bottom hole assembly. The measurement of strain can be used to derive a measurement of at least one operational parameter of the drilling system, such as dog leg severity of a wellbore, torque on bit, and/or weight on bit.

    Reamer
    5.
    发明授权
    Reamer 有权

    公开(公告)号：US10584538B2

    公开(公告)日：2020-03-10

    申请号：US15328051

    申请日：2015-07-21

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Jonathan Robert Hird ,  Ashley Bernard Johnson ,  Gokturk Tunc

    IPC: E21B10/32 ,  E21B10/43 ,  E21B10/46 ,  E21B10/567

    Abstract: A reamer for enlarging an underground borehole comprises a plurality of cutter assemblies distributed azimuthally around a longitudinal axis of the tool, and each cutter assembly comprises a supporting structure and a plurality of hard faced cutters (211-216) embedded therein with a hard face of each cutter exposed and facing in a direction of rotation of the tool. Each cutter assembly includes at least one outward-facing gauge surface (220), at a radial distance from the tool axis which aligns the gauge surface with the radially outer extremity (218) of at least one cutter. This gauge surface (220) extends (221) in the direction of rotation circumferentially ahead of the extremity of the exposed face of the aligned at least one cutter. It may meet the side of the assembly at a curved (222) or bevelled (342) edge and may also extend back from the exposed face of the cutter. These gauge surfaces aligned with the extremity of the cutter prevent the reamer from pivoting around the extremity of a cutter which has snagged on the borehole wall and thus stabilize the rotation within the borehole.

    ANTI-WHIRL STABILIZATION TOOLS
    8.
    发明申请
    ANTI-WHIRL STABILIZATION TOOLS 有权

    公开(公告)号：US20230092039A1

    公开(公告)日：2023-03-23

    申请号：US18058902

    申请日：2022-11-28

    Applicant: Schlumberger Technology Corporation

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

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

    Abstract: A 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. The stabilizer may include an active or passive system for changing modes. An example passive device may include a magnetic clutch where the detected force overcomes magnetic forces to change mode. The stabilizer can be used to mitigate whirl on a rotating device by switching the rotating device between a rotating mode and a non-rotating mode. In the rotating mode, outer collar may rotate with the inner sleeve. In the non-rotating mode, the outer collar may be rotationally isolated from the inner sleeve.

    Methods for mitigating whirl
    9.
    发明授权
    Methods for mitigating whirl 有权

    公开(公告)号：US11512540B2

    公开(公告)日：2022-11-29

    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 ,  E21B17/02 ,  E21B17/046

    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.

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