FRICTION FOR CUTTING PLUG
    3.
    发明公开

    公开(公告)号:US20240076979A1

    公开(公告)日:2024-03-07

    申请号:US17902487

    申请日:2022-09-02

    IPC分类号: E21B44/02 E21B47/06 E21B47/08

    CPC分类号: E21B44/02 E21B47/06 E21B47/08

    摘要: A method for controlling computerized operations related to a wellbore comprises drilling the wellbore in a subsurface formation with a drill string including a drill bit. The method comprises acquiring a plurality of drilling parameters while drilling the wellbore. The method comprises determining, based on the plurality of drilling parameters, solids properties for solids forming a cutting plug up hole of the drill bit. The method comprises determining a length of the cutting plug based on the solids properties. The method comprises determining a cutting plug friction force based on the cutting plug length and a pressure differential across the cutting plug. The method comprises performing a drilling operation based on the cutting plug friction force.

    AUTONOMOUS WELLBORE DRIFT ROBOT
    4.
    发明公开

    公开(公告)号:US20240068362A1

    公开(公告)日:2024-02-29

    申请号:US17823864

    申请日:2022-08-31

    摘要: A drift robot for performing a drifting operation of a wellbore in a subterranean formation is disclosed. The drift robot includes an elongated body to be deployed into a well conduit in the wellbore, a propulsion system for propelling the elongated body to traverse the well conduit, retractable landings attached to the elongated body for selectively anchoring the elongated body to an internal surface of the well conduit, sensors attached to the elongated body to generate sensor measurements of the well conduit, a smart camera disposed at one end of the elongated body to capture camera images of interior features of the well conduit, and a controller configured to navigate the elongated body based at least on the sensor measurements and the camera images.

    NESTED TUBULARS FOR DRIFTING A PLURALITY OF CYLINDRICAL DIAMETERS

    公开(公告)号:US20230313675A1

    公开(公告)日:2023-10-05

    申请号:US17707168

    申请日:2022-03-29

    摘要: Apparatus and methods for drifting a plurality of cylindrical diameters are disclosed. The apparatus includes a first tubular with a first inner diameter and a first outer diameter. The apparatus further includes a second tubular with a second inner diameter and a second outer diameter, wherein the second outer diameter is smaller than the first inner diameter. The apparatus still further includes a first plurality of attachments that couples the first inner diameter of the first tubular and the second outer diameter of the second tubular, wherein the first plurality of attachments is removeable to allow the second tubular to translate along an axis relative to the first tubular.

    METHODS AND APPARATUS FOR PRINTING A WELLBORE CASING

    公开(公告)号:US20230272690A1

    公开(公告)日:2023-08-31

    申请号:US17652798

    申请日:2022-02-28

    IPC分类号: E21B33/138 E21B47/08

    摘要: A method includes introducing a drill string including a bottom hole assembly into a wellbore, wherein the bottom hole assembly includes a mounted 3D printing sub-assembly. A wellbore is drilled with the bottom hole assembly, and at least a portion of a casing is printed with the 3D printing sub-assembly while drilling the wellbore. A related system includes a drill string having a length of drill pipe and a bottom hole assembly disposed at a distal end of the length of drill pipe. A 3D printing sub-assembly is mounted on the bottom hole assembly, wherein the printing sub-assembly includes a printer housing and a 3D printing head mounted at the printer housing. A control guides the 3D printing head to print at least a portion of a casing at a location radially away from the central longitudinal axis of the drill string.

    BOREHOLE SHAPE ESTIMATION
    9.
    发明申请

    公开(公告)号:US20190032475A1

    公开(公告)日:2019-01-31

    申请号:US16071793

    申请日:2016-08-24

    摘要: Method and system of estimating a shape of a borehole include receiving data points associated with a standoff measurement for the borehole, wherein each data point includes a radial distance value and an azimuthal value corresponding to the radial distance value. The method and system determine point-to-point angles for the data points based on at least the azimuthal value associated with each data point, wherein each point-to-point angle spans between two adjacent data points. The method and system select a geometric shape from a plurality of geometric shapes to fit to the data points based on the point-to-point angles, the plurality of geometric shapes including a circle and an ellipse. A shape of the borehole is estimated at a location of the standoff measurement based on the selected geometric shape.