Self-powered sensors for detecting downhole parameters

    公开(公告)号:US11639647B2

    公开(公告)日:2023-05-02

    申请号:US16944662

    申请日:2020-07-31

    Abstract: A self-powered sensor array (SPSA) for sensing environmental parameters along a drillstring includes an outer collar having moveable member retainers with moveable members movably located in the moveable member retainers. An inner ring is rotatably supported within the outer collar with bearing elements on an outer surface of the inner ring positioned to displace the moveable members relative to the moveable member retainers in response to relative rotation between the inner ring and the outer collar. Shape memory material elements are arranged in a respective moveable member retainer. Distance sensors are configured to sense a gap responsive to a shape change of the respective shape memory material element and a displacement of the respective moveable member. Power generation components are configured such that, in response to the relative rotation, the bearing elements displace a particular moveable member into a particular moveable member retainer, generating an electric charge.

    Rotatable multi-head ball bits
    13.
    发明授权

    公开(公告)号:US11608689B2

    公开(公告)日:2023-03-21

    申请号:US16991630

    申请日:2020-08-12

    Abstract: A drill bit having a rotatable ball bit includes a first bit head and a second bit head, a first set of cutters on the first bit head, and a second set of cutters on the second bit head. The rotatable ball bit is configured to rotate between a first position and a second position, wherein the first bit head is distal to the second bit head in the first position, and wherein the second bit head is distal to the first bit head in the second position. A method of operating a rotatable ball bit includes orienting the rotatable ball bit in a first position, wherein a first bit head is oriented distally, rotating the rotatable ball bit about a longitudinal axis, orienting the rotatable ball bit in a second position, wherein a second bit head is oriented distally, and rotating the rotatable ball bit about the longitudinal axis.

    METHODS AND SYSTEMS FOR MONITORING WELLBORE INTEGRITY THROUGHOUT A WELLBORE LIFECYCLE USING MODELING TECHNIQUES

    公开(公告)号:US20220291419A1

    公开(公告)日:2022-09-15

    申请号:US17691181

    申请日:2022-03-10

    Abstract: Embodiments provided herein include systems and methods for monitoring wellbore integrity throughout a wellbore lifecycle. These embodiments include creating an initial wellbore integrity model that determines a geomechanical stability of a wellbore for drilling, the wellbore for harvesting fluid hydrocarbons, where creating the initial wellbore integrity model includes determining the wellbore and determining first input data of a subsurface into which the wellbore is planned. Some embodiments include drilling the wellbore as s part of a drilling phase of a life cycle of the wellbore and performing drilling phase analysis. Some embodiments include determining drilling in-situ stresses of the wellbore during the drilling phase, determining a drilling phase mud window, creating an updated wellbore integrity model, and predicting from the updated wellbore integrity model whether there is a first issue with the wellbore.

    SELF-POWERED ACTIVE VIBRATION AND ROTATIONAL SPEED SENSORS

    公开(公告)号:US20220034174A1

    公开(公告)日:2022-02-03

    申请号:US16944455

    申请日:2020-07-31

    Abstract: Self-powered active sensing systems (SASS) for use in downhole drilling environments are disclosed. Sensor devices of the SASS can include a self-powered rotational speed sensor including a ring structure attached around a drill string. The ring rotates within a groove formed in an outer housing. Bearings on the ring are arranged to contact moveable members extending from the housing into the groove thereby causing the moveable member to generate an electrical signal representing rotational speed. The SASS can include a vibration sensor having a ring spring mounted within a housing. Spherical bearings on the outer surface of the ring are configured to contact screens that are mounted to the housing and that generate a signal representing movement of the bearing/ring from vibration. Multiple SASS units configured to wirelessly transmit sensor data can be placed along a drill string providing a distributed self-powered system for measuring downhole parameters.

    Intelligent drilling system with external stationary sensing shield

    公开(公告)号:US12188342B2

    公开(公告)日:2025-01-07

    申请号:US18064105

    申请日:2022-12-09

    Abstract: An intelligent drilling system is disclosed. The intelligent drilling system includes an inner drill pipe adapted to rotate around a longitudinal axis in a transversal plane of a wellbore to advance a drill bit during a drilling operation, an external drill string shield surrounding the inner drill pipe and coupled to the inner drill pipe via at least one bearing system, the at least one bearing system adapted to decouple the external drill string shield from a rotational motion of the inner drill pipe in the transversal plane such that the external drill string shield remains substantially stationary during the drilling operation, and an in-situ sensing system disposed on an interior wall of the external drill string shield to measure at least one downhole parameter of the wellbore.

    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

    CPC classification number: E21B33/138 E21B47/08 E21B10/265

    Abstract: 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.

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