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    Selective rotationally aligning indicating mechanism
    1.
    发明授权
    Selective rotationally aligning indicating mechanism 有权

    公开(公告)号：US10683729B2

    公开(公告)日：2020-06-16

    申请号：US15680156

    申请日：2017-08-17

    Applicant: Baker Hughes, a GE Company, LLC

    Inventor： Zachary S. Silva

    IPC: E21B34/12 ,  E21B23/00 ,  E21B47/09 ,  E21B34/00 ,  E21B33/13 ,  E21B37/00 ,  E21B43/04 ,  E21B43/24 ,  E21B43/25 ,  E21B43/26 ,  E21B43/20

    Abstract: A multi-function tool is connected to an inner string to selectively align a port or ports in the inner string with ports in the outer string at various locations. The tool is locked from functioning at some locations where a locating collet will not selectively engage with an unlocking profile. In this more the tool will pass through the location unhindered. If an unlock profile is engaged the tool is enabled to be unlocked so that manipulation allows a support mandrel to align with collets that have an external V-shaped profile. Setting down weight allows the supported V-shaped profile on the collets engage a similar profile on the outer tubular to rotate, if needed, and to find support on a V-shaped profile on the surrounding tubular for performance of the borehole operation. Thereafter the locating collet engages a locking profile to disable the tool again.

    Check valve with valve member biased by connectors extending from a valve seat for operation of a subterranean tool
    2.
    发明授权
    Check valve with valve member biased by connectors extending from a valve seat for operation of a subterranean tool 有权

    公开(公告)号：US10184317B2

    公开(公告)日：2019-01-22

    申请号：US14930334

    申请日：2015-11-02

    Applicant: BAKER HUGHES, A GE COMPANY, LLC

    Inventor： Zachary S. Silva ,  Andre′ J. Porter

    IPC: E21B34/10 ,  E21B43/116 ,  F16K15/02

    Abstract: A check valve has a valve member flexibly attached to a seat with resilient members that fold in response to flow above a predetermined value to shut the valve. The flexibly extending members store potential energy that is released to separate the valve member from the seat when the pressure applied against the seated valve member declines to the point that the potential energy stored in the flexible members is able to move the valve member off the seat. The valve assembly including the valve member, the seat and the flexible members can be a common material, or can be all one or more nonmetallic materials or involve composites or other easily drilled materials that are compatible with the operating conditions of pressure differential, temperature and composition of the well fluid. The check valve assembly can be pushed with pressure when closed to operate a subterranean tool.

    Straddle frac tool with pump through feature apparatus and method
    5.
    发明授权
    Straddle frac tool with pump through feature apparatus and method 有权

    公开(公告)号：US10214993B2

    公开(公告)日：2019-02-26

    申请号：US15019729

    申请日：2016-02-09

    Applicant: BAKER HUGHES, A GE COMPANY, LLC

    Inventor： Zachary S. Silva ,  Christopher K. Elliott ,  James A. Smith ,  Adam M. McGuire ,  Robert S. O'Brien

    IPC: E21B34/12 ,  E21B33/12 ,  E21B43/26 ,  E21B34/00

    Abstract: A fracturing tool features spaced releasable packers with an outlet in between. The housing has relatively moving components for opening the frac port between the packers with weight set on the lower packer. Once the frac port is opened the upper packer is set and the pumping begins. The upper packer can be released so that tension can be pulled on the lower packer to close the frac port and open a through passage in the housing. In one embodiment the through passage can be located above the lower packer to a sand jet perforator to clean debris away from the lower packer if it is difficult to release the lower packer or to abrasively perforate through a tubular. The housing outlet can be below bottom packer to perform a treatment further downhole or to operate another tool. The straddle tool can be run in on coiled tubing.

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