Downhole Shut Off Assembly for Artificially Lifted Wells
    51.
    发明申请
    Downhole Shut Off Assembly for Artificially Lifted Wells 有权
    井下关闭人造井的装配

    公开(公告)号:US20090314499A1

    公开(公告)日:2009-12-24

    申请号:US12141398

    申请日:2008-06-18

    CPC classification number: E21B34/14 E21B43/128

    Abstract: A multi-string well has an electric submersible pump (ESP) that can be removed without killing the well. A slotted liner is sealingly secured externally to casing and internally to a guide string that remains in the wellbore when the ESP is removed. A ported sub is part of the guide string and a concentric screen that can have instruments that moves relatively to the guide string can selectively allow flow in an annulus between them and to the ported sub or that annulus between the guide and concentric strings can be blocked off by manipulation of the concentric string to close the ported sub. With the lower portion of the well now blocked off, the wellhead can be removed so that the ESP can come out with the production string. The device has particular application to steam assisted gravity drainage (SAGD) systems as well as other downhole applications.

    Abstract translation: 多串井具有可以在不杀死井的情况下被移除的电潜泵(ESP)。 一个开槽衬套密封地固定在套管的外部,并在内部被固定到当ESP被移除时留在井眼中的导向柱。 移动的子是引导弦的一部分,并且可以具有相对于引导弦线移动的乐器的同心屏幕可以选择性地允许在它们之间的环形空间和移动的子空间中流动,或者可以阻止导向和同心弦线之间的环形空间 通过操纵同心弦来关闭移动子。 当井的下部被堵住时,可以拆下井口,以便ESP能够与生产线一起出来。 该设备特别适用于蒸汽辅助重力排水(SAGD)系统以及其他井下应用。

    BACKOFF SUB AND METHOD FOR REMOTELY BACKING OFF A TARGET JOINT
    52.
    发明申请
    BACKOFF SUB AND METHOD FOR REMOTELY BACKING OFF A TARGET JOINT 失效
    备用副本和远程备份目标接头的方法

    公开(公告)号:US20090260822A1

    公开(公告)日:2009-10-22

    申请号:US12104185

    申请日:2008-04-16

    CPC classification number: E21B31/1075 E21B17/06

    Abstract: A backoff sub includes a housing; and a backoff facilitator at least partially within the housing and capable of adding energy to a system within which the sub is disposable and method.

    Abstract translation: 退避子部分包括壳体; 以及至少部分地在所述壳体内并且能够将能量添加到所述子系统的系统中的退避促进者,所述系统在其中是一次性的和方法。

    CAPILLARY ACTUATOR DEVICE
    53.
    发明申请
    CAPILLARY ACTUATOR DEVICE 审中-公开
    毛细作动器装置

    公开(公告)号:US20090139722A1

    公开(公告)日:2009-06-04

    申请号:US11948640

    申请日:2007-11-30

    CPC classification number: G05D23/1921

    Abstract: A pressure storage device includes a porous material; and a non-wetting fluid having a glass transition temperature above a normal exposure temperature for the device and method.

    Abstract translation: 压力存储装置包括多孔材料; 以及玻璃化转变温度高于设备和方法的正常暴露温度的非润湿流体。

    FLUID LOSS CONTROL SYSTEM AND METHOD FOR CONTROLLING FLUID LOSS
    54.
    发明申请
    FLUID LOSS CONTROL SYSTEM AND METHOD FOR CONTROLLING FLUID LOSS 有权
    流体损失控制系统和控制流体损失的方法

    公开(公告)号:US20080041595A1

    公开(公告)日:2008-02-21

    申请号:US11838529

    申请日:2007-08-14

    Inventor: Terry R. Bussear

    CPC classification number: E21B43/14 E21B21/003 E21B34/06 E21B34/12

    Abstract: A fluid loss control system having a loss control valve and a plurality of zones including an isolation assembly disposed in a wellbore and a string having a stinger at a downhole most end thereof. The string is supportive of a moveable seal at a selected position uphole of the stinger, the position being calculated to cause engagement of the seal with the isolation assembly and to position the moveable seal to facilitate fluid-flow around the seal when the stinger is engaged with a seal bore of one of the plurality of zones. A method for controlling fluid loss including isolating a fluid column uphole of a pressure seal spaced from the lower completion, opening a fluid loss control valve, stabbing a stinger into a seal bore of the lower completion, and positioning the seal to facilitate fluid flow therearound.

    Abstract translation: 一种具有损失控制阀和多个区域的流体损失控制系统,所述多个区域包括设置在井筒中的隔离组件和在其最下端处具有托管架的管柱。 绳子支撑在托管架上孔的选定位置处的可移动密封件,该位置被计算为使密封件与隔离组件接合并定位可移动密封件,以便当托管架接合时便于围绕密封件的流体流动 具有多个区域中的一个的密封孔。 一种用于控制流体损失的方法,包括将压力密封件与下部完井间隔开的液体塔的上部隔离,打开流体损失控制阀,将托管架刺入下部完井的密封孔中,并且定位密封件以便于其周围的流体流动 。

    Well completion system and method
    59.
    发明授权
    Well completion system and method 失效
    完井系统和方法

    公开(公告)号:US5743335A

    公开(公告)日:1998-04-28

    申请号:US534552

    申请日:1995-09-27

    Inventor: Terry R. Bussear

    CPC classification number: E21B33/16 E21B43/10

    Abstract: The method includes running a liner, production packer and polished bore receptacle (PBR) into a well on the production tubing string, cementing the liner in place by pumping cement through the production tubing string, setting the packer, and optionally thereafter releasing an upper portion of the tubing string from a PBR. A seal assembly isolates the PBR bore from cement exposure during liner cementation. Annular pressure produces a reverse fluid surge and circulating flow to prevent PBR seal area contamination when the tubing string is lifted away from the PBR. A connecting assembly 12 is suspended from a production tubing string 11 to position a liner 17 in a wellbore. The connecting assembly transmits rotational and longitudinal forces from the production tubing string to properly position and cement the liner in the wellbore. The connecting assembly includes a device 20 to limit torque forces on the tubing string, and a longitudinal slip mechanism 28 permits limited longitudinal movement between the connecting assembly and tubing string. A packer 15 is set to seal between the production tubing string 11 and the well casing. An extended length of tubing 11a extends below the packer to provide a continuous tubing/liner-casing overlap area for cementation.

    Abstract translation: 该方法包括将衬管,生产封隔器和抛光孔容器(PBR)运行到生产油管柱上的井中,通过将水泥泵送通过生产油管柱固定衬垫到位,设置封隔器,以及随后释放上部 的管柱。 密封组件在衬垫固化期间将PBR孔与水泥暴露隔离。 环形压力产生反向流体浪涌和循环流动,以防止当管柱从PBR提起时PBR密封区域被污染。 连接组件12从生产油管柱11悬挂以将衬套17定位在井眼中。 连接组件从生产油管柱传递旋转和纵向力,以适当地定位并将衬套粘结在井眼中。 连接组件包括用于限制油管柱上的扭矩力的装置20,并且纵向滑动机构28允许在连接组件和油管柱之间的有限纵向运动。 封隔器15被设置为在生产油管柱11和井套管之间进行密封。 管道11a的延伸长度延伸到封隔器下方,以提供用于胶结的连续的管道/衬套 - 套管重叠区域。

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