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    DRILL STRING-CONNECTED PROTECTION FROM BOREHOLE PULSATION ENERGIES
    1.
    发明申请
    DRILL STRING-CONNECTED PROTECTION FROM BOREHOLE PULSATION ENERGIES 审中-公开

    公开(公告)号：WO2022147169A1

    公开(公告)日：2022-07-07

    申请号：PCT/US2021/065570

    申请日：2021-12-29

    Applicant: PERFORMANCE PULSATION CONTROL, INC.

    Inventor： ROGERS, John Thomas ,  JANTZON, Cersten

    IPC: F16L55/04 ,  F16L55/027 ,  E21B1/32 ,  E21B1/28

    Abstract: A pulsation dampening device includes a body having an upper connection end and a lower connection end, each connection end adapted to connect the body to connectors for a drill string pipe segment. Flow restriction is provided within an internal flow path extending axially through the body and is configured to reduce pumped fluid pressure pulses. The flow restriction is provided by a combination of one or more orifice(s) having sharp edges and restricting fluid flow within the internal flow path, optionally coupled with relief feature(s) gradually increasing or decreasing a cross-section of the internal flow path, or by an orifice device. The flow restriction may operate unidirectionally or bidirectionally relative to predominant fluid flow direction in attenuating pressure pulses. Spacing between the orifice(s) and the relief feature(s) is based on a waveform of pulsation energy for pressure pulsations to be attenuated.

    BLADDER SAVER DEVICE
    3.
    发明申请
    BLADDER SAVER DEVICE 审中-公开

    公开(公告)号：WO2021134079A1

    公开(公告)日：2021-07-01

    申请号：PCT/US2020/067222

    申请日：2020-12-28

    Applicant: PERFORMANCE PULSATION CONTROL, INC.

    Inventor： JANTZON, Cersten

    IPC: F16L55/04 ,  F16K15/10 ,  F16K17/04 ,  B01D35/28 ,  E21B21/00 ,  E21B47/18 ,  F16L55/053

    Abstract: To inhibit damage to or failure of the bladder within a bladder-type pulsation dampener, an internal passage 405, 415 of a bladder saver device 400, 501, 600-601 carrying pumped fluid from the pulsation bleed plate 416 mounted within the internal passage 415 and movable between a first position in which the pulsated fluid flow is unencumbered by the bleed plate and a second position in which the pulsated fluid flow is restricted by the bleed plate.

    TOP REPAIRABLE GAS-CHARGED BLADDER TYPE PULSATION DAMPENER
    5.
    发明申请
    TOP REPAIRABLE GAS-CHARGED BLADDER TYPE PULSATION DAMPENER 审中-公开

    公开(公告)号：WO2022147247A1

    公开(公告)日：2022-07-07

    申请号：PCT/US2021/065680

    申请日：2021-12-30

    Applicant: PERFORMANCE PULSATION CONTROL, INC.

    Inventor： ROGERS, John Thomas ,  JANTZON, Cersten

    IPC: F15B1/10 ,  F15B1/02 ,  F15B1/04 ,  F15B1/08 ,  F15B1/12 ,  F15B1/14 ,  F15B1/22

    Abstract: Top repairable gas-charged pulsation dampener designs (200, 300, 400, 500, 600) include one or both of a threaded cover (310, 410), for bladder replacement and a standardized bladder, (303, 403, 503, 603) with a single or double convex, anti-extrusion bladder button (409, 509, 609). The threaded cover, which speeds up bladder replacement over bolt-on covers, preferably has a two-piece construction to reduce torsion on the bladder neck. The bladder design, which includes a double convex, anti-extrusion bladder button, facilitates use of the same bladder design in both top repairable and bottom repairable gas-charged pulsation dampeners.

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