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    Select fire switch form factor system and method
    2.
    发明授权
    Select fire switch form factor system and method 有权

    公开(公告)号：US10030487B2

    公开(公告)日：2018-07-24

    申请号：US15044936

    申请日：2016-02-16

    Applicant: GEODynamics, Inc.

    Inventor： John T Hardesty ,  James A Rollins

    IPC: E21B43/11 ,  F42D1/04 ,  F42B3/00 ,  F42B3/02 ,  E21B43/1185

    Abstract: A wellbore select fire switch retaining member system and method with an integrated through wire and ground wire in a switch sub. The system/method includes a retaining member that has a form factor acceptable by a conventional switch sub. The retaining member incorporates an electrical connection to the center pin of a pressure switch. The system further includes a secondary piston aligned with a piston in the switch (switch piston) so that external pressure is fully acted upon the entire switch piston creating a reliable switch connection. Another system includes an integrated retaining member and switch module having a form factor compatible with existing switch subs. The integrated module inputs include a ground wire and a through wire and the outputs include a ground wire, through wire and an arming wire.

    Wellbore Gun Perforating System and Method
    5.
    发明申请
    Wellbore Gun Perforating System and Method 有权

    公开(公告)号：US20160245058A1

    公开(公告)日：2016-08-25

    申请号：US15090988

    申请日：2016-04-05

    Applicant: GEODynamics, Inc.

    Inventor： John T Hardesty ,  James A Rollins

    IPC: E21B43/1185 ,  E21B43/116

    CPC classification number: E21B43/1185 ,  E21B29/02 ,  E21B43/116 ,  E21B43/117 ,  E21B43/119 ,  F42D1/045 ,  F42D1/05 ,  F42D1/055 ,  F42D1/06

    Abstract: A wellbore perforating system and method with reliable and safer connections in a perforating gun assembly is disclosed. The system/method includes a gun string assembly (GSA) deployed in a wellbore with multiple perforating guns attached to plural switch subs. The perforating guns are pre-wired with a cable having multi conductors; the multi conductors are connected to electrical ring contacts on either end of the perforating guns. The switch subs are configured with electrical contacts that are attached to the electrical contacts of the perforating guns without the need for manual electrical connections and assembly in the field of operations. The system further includes detonating with a detonator that is positioned upstream of the perforating gun. The detonator is wired to a switch that is positioned downstream of the perforating gun.

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