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    DOWNHOLE TOOL WITH A PROPELLANT CHARGE
    1.
    发明公开
    DOWNHOLE TOOL WITH A PROPELLANT CHARGE 审中-公开

    公开(公告)号：EP4036368A1

    公开(公告)日：2022-08-03

    申请号：EP22163563.4

    申请日：2016-04-13

    申请人： SPEX Corporate Holdings Ltd

    发明人： YOUNGER, Rae

    IPC分类号： E21B29/02 ,  E21B43/11

    摘要： A method of initiating a change in a target (14), includes providing at least one propellant source (12), igniting at least one of the propellant source(s) to form a combustion zone (20), and directing at least one combustion products jet (228) generated at the combustion zone (20) along at least one flow path (30). Upon exiting the flow path(s) the/each combustion products jet interacts with a target (14), to cause a change in the target. The method further comprises the step of providing at least one additive, the additive being provided in the at least one propellant source (12) or introduced to the at least one combustion products jet (228). The additive or additives adhere to the target (14). A tool (10) for carrying out the method is also provided.

    TOOL FOR MANIPULATING A TUBULAR IN A DOWNHOLE ENVIRONMENT
    3.
    发明公开
    TOOL FOR MANIPULATING A TUBULAR IN A DOWNHOLE ENVIRONMENT 审中-公开

    公开(公告)号：EP3869001A1

    公开(公告)日：2021-08-25

    申请号：EP20217283.9

    申请日：2017-05-18

    申请人： SPEX Corporate Holdings Ltd

    发明人： JOHNSTON, Sidney, Dantuma

    IPC分类号： E21B29/02

    摘要： A tool (10) for manipulating a tubular (12) in a downhole environment is described. The tool comprises a housing (24) defining a chamber (26), the chamber having at least one outlet (28), a propellant source (34) located within the chamber an ignition mechanism (46) for igniting the propellant source; and a control mechanism (52). Upon ignition of the propellant source (34), the propellant source is operable to deflagrate, creating at least one stream of combustion products, the chamber (26) directing the/each stream of combustion products through the/each outlet (28), towards the tubular (12) to be manipulated, at least one parameter of the/each stream of combustion products being changeable by the control mechanism (52).

    DOWNHOLE TOOL WITH A PROPELLANT CHARGE
    7.
    发明公开
    DOWNHOLE TOOL WITH A PROPELLANT CHARGE 审中-公开

    公开(公告)号：EP3869002A1

    公开(公告)日：2021-08-25

    申请号：EP21167910.5

    申请日：2015-11-18

    申请人： SPEX Corporate Holdings Ltd

    发明人： OAG, Jamie ,  YOUNGER, Rae, Andrew ,  JOHNSTON, Sidney, Dantuma

    IPC分类号： E21B29/02 ,  E21B33/12 ,  E21B33/13 ,  E21B43/11

    摘要： A tool (10) for manipulating a material includes a body defining a chamber (22) and at least one propellant source (26) located within the chamber (22). At least one nozzle (24) having an inlet and an outlet, is in selective fluid communication with the chamber (22). At least one mechanism (38) is provided for igniting the/each propellant source, creating a combustion zone (42) on the propellant source (26). At least one of the propellant sources (26) is configured to combust upon ignition to deflagrate and release a combustion jet. The chamber (22) includes an opening mechanism configured to prevent fluid communication between the chamber and the/each nozzle inlet until pressure in the chamber reaches a threshold pressure, higher than the environmental pressure, whereupon the combustion jet flows into the/each nozzle inlet, the combustion jet then flowing out of the tool through the/each nozzle outlet towards, and into engagement with, a material to be manipulated.