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39 条记录 (耗时 0.037 秒)

    Slotted Backup Ring Assembly
    3.
    发明申请
    Slotted Backup Ring Assembly 有权

    公开(公告)号：US20210010343A1

    公开(公告)日：2021-01-14

    申请号：US17032816

    申请日：2020-09-25

    申请人： Guijun Deng ,  John K. Wakefield ,  Adam Patterson ,  Alexander Kendall

    发明人： Guijun Deng ,  John K. Wakefield ,  Adam Patterson ,  Alexander Kendall

    IPC分类号： E21B33/12 ,  E21B33/128 ,  F16J15/02 ,  E21B43/26 ,  E21B43/14

    摘要： A unique backup ring against ends of a sealing element features axial slots extending part way along a cylindrical segment of the backup ring. The slots end in rounded openings to relieve stress and a part of the cylindrical shape of the backup ring is solid. The slotted end of the cylindrical portion is tapered in section toward the end overlapping the sealing element. The face of the backup ring away from the sealing element is tapered and rides on an adjacent tapered surface away from the mandrel during the setting. The tapered seal end of the backup ring bends to reach the surrounding tubular before the balance of the cylindrical portion reaches the surrounding tubular. Extrusion along the mandrel is stopped by a mandrel seal on an adjacent wedge ring. The mandrel end of the backup ring has a peripheral stiffener to lend rigidity.

    Multi-layer backup ring including interlock members
    4.
    发明授权
    Multi-layer backup ring including interlock members 有权

    公开(公告)号：US10677014B2

    公开(公告)日：2020-06-09

    申请号：US16395459

    申请日：2019-04-26

    申请人： Guijun Deng ,  Alexander Kendall ,  Christopher Cook ,  Frank Maenza

    发明人： Guijun Deng ,  Alexander Kendall ,  Christopher Cook ,  Frank Maenza

    IPC分类号： E21B33/128 ,  E21B23/06 ,  E21B33/12 ,  E21B33/00

    摘要： A backup ring assembly has a plurality of radially offset ring members including an outermost ring member formed from plurality of axially extending segments. Each of the plurality of axially extending segments includes an outer surface. A first interlock member support is coupled to the outer surface of one of the plurality of axially extending segments of the outer most ring member. A second interlock member support is coupled to the outer surface of an another one of the plurality of axially extending segments of the outermost ring member. An interlock member includes a first end supported at the first interlock member support and a second end supported at the second interlock member support. The interlock member restrains radially outward expansion of the ring and circumferential expansion of a gap extending between the one of the axially extending segments and the another one of the axially extending segments.

    MULTI-LAYER BACKUP RING INCLUDING INTERLOCK MEMBERS
    5.
    发明申请
    MULTI-LAYER BACKUP RING INCLUDING INTERLOCK MEMBERS 审中-公开

    公开(公告)号：US20190249511A1

    公开(公告)日：2019-08-15

    申请号：US16395459

    申请日：2019-04-26

    申请人： Guijun Deng ,  Alexander Kendall ,  Christopher Cook ,  Frank Maenza

    发明人： Guijun Deng ,  Alexander Kendall ,  Christopher Cook ,  Frank Maenza

    IPC分类号： E21B33/128 ,  E21B33/12 ,  E21B23/06

    摘要： A backup ring assembly has a plurality of radially offset ring members including an outermost ring member formed from plurality of axially extending segments. Each of the plurality of axially extending segments includes an outer surface. A first interlock member support is coupled to the outer surface of one of the plurality of axially extending segments of the outer most ring member. A second interlock member support is coupled to the outer surface of an another one of the plurality of axially extending segments of the outermost ring member. An interlock member includes a first end supported at the first interlock member support and a second end supported at the second interlock member support. The interlock member restrains radially outward expansion of the ring and circumferential expansion of a gap extending between the one of the axially extending segments and the another one of the axially extending segments.

    Multi-layer backup ring
    6.
    发明授权
    Multi-layer backup ring 有权

    公开(公告)号：US10907438B2

    公开(公告)日：2021-02-02

    申请号：US16749703

    申请日：2020-01-22

    申请人： Guijun Deng ,  Alexander Kendall

    发明人： Guijun Deng ,  Alexander Kendall

    IPC分类号： E21B33/12 ,  E21B23/06 ,  E21B23/01 ,  E21B33/128

    摘要： A backup ring assembly has a plurality of radially offset ring members including an outermost ring member formed from plurality of axially extending segments. Each of the plurality of axially extending segments includes an outer surface. A first interlock member support is coupled to the outer surface of one of the plurality of axially extending segments of the outer most ring member. A second interlock member support is coupled to the outer surface of an another one of the plurality of axially extending segments of the outermost ring member. An interlock member includes a first end supported at the first interlock member support and a second end supported at the second interlock member support. The interlock member restrains radially outward expansion of the ring and circumferential expansion of a gap extending between the one of the axially extending segments and the another one of the axially extending segments.

    METHODS AND SYSTEMS FOR HANGING STRUCTURES IN DOWNHOLE ENVIRONMENTS
    9.
    发明申请
    METHODS AND SYSTEMS FOR HANGING STRUCTURES IN DOWNHOLE ENVIRONMENTS 有权

    公开(公告)号：US20210277751A1

    公开(公告)日：2021-09-09

    申请号：US16809858

    申请日：2020-03-05

    申请人： Zhiyue Xu ,  Guijun Deng ,  Oleksandr Kuznetsov ,  Deepak Kumar

    发明人： Zhiyue Xu ,  Guijun Deng ,  Oleksandr Kuznetsov ,  Deepak Kumar

    IPC分类号： E21B43/10 ,  E21B17/08

    摘要： Downhole hanger systems and methods for hanging a first structure from a second structure in downhole environments are described. The systems include a first structure and a second structure, with the first structure disposed within the second structure. A composite joint is arranged on an outer surface of the first structure. The composite joint is formed of a material configured to be fused to both the first structure and the second structure and form a hanger joint having a shear strength of at least 2 ksi when the material is fused to the outer surface of the first structure and an inner surface of the second structure.

    Wear-resistant and self-lubricant bore receptacle packoff tool
    10.
    发明授权
    Wear-resistant and self-lubricant bore receptacle packoff tool 有权

    公开(公告)号：US09840887B2

    公开(公告)日：2017-12-12

    申请号：US14710674

    申请日：2015-05-13

    申请人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

    发明人： Lei Zhao ,  Zhiyue Xu ,  Guijun Deng

    IPC分类号： E21B33/12

    CPC分类号： E21B33/1212 ,  E21B33/1208

    摘要： A packoff assembly comprises: a tubing connectable mandrel; and at least one packoff element disposed on the mandrel; the packoff element comprising an annular seal comprising a carbon composite and having an inner surface and an opposing outer surface; the inner surface being in contact with a surface of the mandrel; a wear-resistant member at least partially encapsulating the seal; an annular guide member disposed on the mandrel; and a retainer member disposed between the guide member and the mandrel for securing the guide member to a predetermined position on the mandrel.