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    METHOD AND SYSTEM FOR SEALING AN ANNULUR SPACE AROUND AN EXPANDED WELL TUBULAR
    1.
    发明申请
    METHOD AND SYSTEM FOR SEALING AN ANNULUR SPACE AROUND AN EXPANDED WELL TUBULAR 审中-公开

    公开(公告)号：US20180195363A1

    公开(公告)日：2018-07-12

    申请号：US15740197

    申请日：2016-07-01

    Applicant: SHELL OIL COMPANY

    Inventor： Jelle HOFSTEE ,  Antonius Leonardus Maria WUBBEN ,  Djurre Hans ZIJSLING

    IPC: E21B33/128 ,  E21B33/12 ,  E21B43/10

    CPC classification number: E21B33/128 ,  E21B33/1208 ,  E21B43/103 ,  E21B43/108

    Abstract: An annular space surrounding an expandable well tubular (1) is sealed by: —a concave seal pusher assembly (5) with concave pusher elements comprising buckling joints (7) of which assembly (5) a first end is secured at a selected first location (2) of the outer surface of the unexpanded well tubular (1); —an annular elastomeric sealing ring (9) arranged with an inwardly tapered first end thereof against an outwardly tapered second end (8) of the concave seal pusher assembly (5); —a set of staggered and overlapping steel support strips (11) arranged around a second end of the sealing ring (9) and connected at one end thereof to a selected second location (3) of the outer surface of the unexpanded tubular (1); —expanding and thereby shortening the tubular (1) to push the inwardly tapered end of the sealing ring over the outwardly tapered end (8) of the seal pusher assembly (5) and buckling the staggered strips (11) against the outer surface (12) of the annular space surrounding the expanded tubular (1) to compress the sealing ring (9) and seal off the annular space.

    RETRIEVABLE SELF-ENERGIZING TOP ANCHOR TOOL
    4.
    发明申请
    RETRIEVABLE SELF-ENERGIZING TOP ANCHOR TOOL 审中-公开

    公开(公告)号：US20190323306A1

    公开(公告)日：2019-10-24

    申请号：US16471060

    申请日：2017-12-19

    Applicant: SHELL OIL COMPANY

    Inventor： Antonius Leonardus Maria WUBBEN ,  Tino Walter VAN DER ZEE ,  Djurre Hans ZIJSLING

    IPC: E21B23/01 ,  E21B43/10

    Abstract: A retrievable self-energizing top anchor tool with a central energizing mandrel disposed around a central tool bore and a set of anchor segments distributed around a circumference of the central energizing mandrel, each having one or more wedge surfaces facing toward the central tool bore and corresponding to and engaging inclined surfaces of the central energizing mandrel. The tool is releasable by relative upward movement of a release sub against a release sub stop arranged within the central tool bore. A release mechanism houses one or more pre-loaded release spring members locked with a release locking mechanism. When unlocked the release spring members exert a retracting bias force on the central energizing mandrel in downward direction along the longitudinal axis relative to the set of anchor segments. This downward movement of the central energizing mandrel causes a radially inward movement of the set of anchor segments.

    REDUCING SWAB PRESSURE GENERATED BEHIND A WELL LINER EXPANSION CONE
    5.
    发明申请
    REDUCING SWAB PRESSURE GENERATED BEHIND A WELL LINER EXPANSION CONE 审中-公开

    公开(公告)号：US20190257179A1

    公开(公告)日：2019-08-22

    申请号：US16336423

    申请日：2017-09-11

    Applicant: SHELL OIL COMPANY

    Inventor： Wissam ASSAAD ,  Djurre Hans ZIJSLING

    IPC: E21B43/10 ,  E21B34/06

    Abstract: A tubular pull string assembly (5, 5A) may be used to pull up an expansion mandrel (1) through an area of overlap (2) between an upper section of a well liner (3) expanded by the expansion mandrel and a lower section of a previously installed liner (4). The tubular pull string assembly may be provided with at least one flow port (6), through which fluid is permitted to flow from the exterior (7) to the interior (8) of the tubular pull string assembly during pop out of the expansion mandrel from the area of overlap. In addition thereto, or instead thereof, the expansion mandrel may be provided with a streamlined tail (1A) section having an inwardly tapered outer surface (11) that intersects a longitudinal axis of the expansion mandrel at a sharp angle. The sharp angle can be less than 20 degrees. The tail section can have a length of at least several centimeters.

    PIPE CONNECTOR AND METHOD
    10.
    发明申请
    PIPE CONNECTOR AND METHOD 有权
    管接头及方​​法

    公开(公告)号：US20160186332A1

    公开(公告)日：2016-06-30

    申请号：US14653398

    申请日：2013-12-17

    Applicant: SHELL OIL COMPANY

    Inventor： Petrus Cornelis KRIESELS ,  Egbert Jan VAN RIET ,  Mark Michael SHUSTER ,  Djurre Hans ZIJSLING

    IPC: C23C24/10 ,  C25D15/00 ,  F16B33/06 ,  C25D5/50 ,  E21B17/042 ,  C23C4/18 ,  C25D7/04

    CPC classification number: C23C24/106 ,  C23C4/18 ,  C25D5/505 ,  C25D7/04 ,  C25D15/00 ,  E21B17/042 ,  F16B33/06

    Abstract: A method is provided of creating a pipe connector including a first connector member and a second connector member, said connector members being adapted to be connected and disconnected multiple times, the method comprising: a) providing at least one of the connector members with a contact surface; b) depositing particles of a galling resistant metal on each said contact surface; c) at least partially melting the particles of the galling resistant metal by subjecting the particles to a quantity of heat; and d) allowing the molten galling resistant metal to solidify thereby forming a galling resistant metal coating which is metallurgically bonded to the contact surface. The heat may be provided in the form of radiant energy, using a laser beam.

    Abstract translation: 提供一种创建包括第一连接器构件和第二连接器构件的管连接器的方法，所述连接器构件适于多次连接和断开，所述方法包括：a）至少一个所述连接器构件具有触点 表面; b）在每个所述接触表面上沉积耐磨损金属的颗粒; c）通过使颗粒经受一定量的热量至少部分地熔化耐磨损金属的颗粒; 和d）允许熔融耐磨损金属固化，从而形成耐磨损的金属涂层，该金属涂层与接触表面冶金结合。 可以使用激光束以辐射能的形式提供热量。

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