Retractable joint and cementing shoe for use in completing a wellbore
    1.
    发明申请
    Retractable joint and cementing shoe for use in completing a wellbore 有权
    用于完井的伸缩缝和固井鞋

    公开(公告)号:US20060185855A1

    公开(公告)日:2006-08-24

    申请号:US11343148

    申请日:2006-01-30

    IPC分类号: E21B19/16

    CPC分类号: E21B17/08 E21B21/10

    摘要: An improved method and/or apparatus for completing a wellbore is provided. In one embodiment, a method of lining a pre-drilled wellbore is provided. The method includes the act of providing a casing assembly, the casing assembly including a string of casing; and a retractable joint comprising an inner tubular and an outer tubular. The method further includes the acts of running the casing assembly into the pre-drilled wellbore and actuating the retractable joint, thereby reducing the length of the casing assembly through movement between the inner and outer tubulars.

    摘要翻译: 提供了一种用于完成井筒的改进的方法和/或装置。 在一个实施例中,提供了衬砌预钻井井筒的方法。 该方法包括提供壳体组件的动作,所述壳体组件包括套管套; 以及包括内管和外管的可收缩接头。 该方法还包括将壳体组件运行到预钻井井筒中并且致动可伸缩接头的动作,从而通过内管和外管之间的运动来减小壳体组件的长度。

    Apparatus and method of drilling with casing
    5.
    发明申请
    Apparatus and method of drilling with casing 失效
    套管钻孔设备及方法

    公开(公告)号:US20050217858A1

    公开(公告)日:2005-10-06

    申请号:US11140858

    申请日:2005-05-31

    摘要: The present invention generally relates to methods for drilling a subsea wellbore and landing a casing mandrel in a subsea wellhead. In one aspect, a method of drilling a subsea wellbore with casing is provided. The method includes placing a string of casing with a drill bit at the lower end thereof in a riser system and urging the string of casing axially downward. The method further includes reducing the axial length of the string of casing to land a wellbore component in a subsea wellhead. In this manner, the wellbore is formed and lined with the string of casing in a single run. In another aspect, a method of forming and lining a subsea wellbore is provided. In yet another aspect, a method of landing a casing mandrel in a casing hanger disposed in a subsea wellhead is provided.

    摘要翻译: 本发明一般涉及用于钻探海底井筒并将套管心轴着陆在海底井口中的方法。 在一个方面,提供了一种用壳体钻探海底井筒的方法。 该方法包括将一套具有钻头的套管在其下端放置在提升管系统中并且将套管轴向向下推动。 该方法还包括减小套管套管的轴向长度以将井眼部件落在海底井口中。 以这种方式,井筒在单次运行中形成并与套管串联。 另一方面,提供了形成和衬砌海底井筒的方法。 在另一方面,提供了一种将壳体心轴着陆在设置在海底井口中的壳体悬挂器中的方法。

    Drilling with concentric strings of casing
    6.
    发明申请
    Drilling with concentric strings of casing 有权
    用套管同心圆柱钻孔

    公开(公告)号:US20050133274A1

    公开(公告)日:2005-06-23

    申请号:US11063459

    申请日:2005-02-22

    IPC分类号: E21B7/20 E21B17/07 E21B7/04

    CPC分类号: E21B17/07 E21B7/20

    摘要: The present invention provides a method and apparatus for setting concentric casing strings within a wellbore in one run-in of a casing working string. In one aspect of the invention, the apparatus comprises a drilling system comprising concentric casing strings, with each casing string having a drill bit piece disposed at the lower end thereof. The drill bit pieces of adjacent casing strings are releasably connected to one another. In another aspect of the invention, a method is provided for setting concentric casing strings within a wellbore with the drilling system. In another aspect of the invention, the releasably connected drill bit pieces comprise a drill bit assembly.

    摘要翻译: 本发明提供了一种用于在套管工作串的一次接入中将同心套管柱设置在井眼内的方法和装置。 在本发明的一个方面,该装置包括一个包括同心套管柱的钻井系统,每个套管柱具有设置在其下端的钻头件。 相邻套管柱的钻头件彼此可释放地连接。 在本发明的另一方面,提供了一种用于在钻井系统中将同心套管柱设置在井筒内的方法。 在本发明的另一方面,可释放地连接的钻头件包括钻头组件。

    Apparatus and methods for utilizing a downhole deployment valve
    9.
    发明授权
    Apparatus and methods for utilizing a downhole deployment valve 有权
    利用井下展开阀的装置和方法

    公开(公告)号:US07178600B2

    公开(公告)日:2007-02-20

    申请号:US10783982

    申请日:2004-02-20

    IPC分类号: E21B34/10

    摘要: Methods and apparatus for utilizing a downhole deployment valve (DDV) to isolate a pressure in a portion of a bore are disclosed. Any combination of fail safe features may be used with or incorporated into the DDV such as redundant valve members, an upward opening flapper valve or a metering flapper below a sealing valve. In one aspect, a barrier or diverter located in the bore above a valve member of the DDV permits passage through the bore when the valve member is open and actuates when the valve member is closed. Once actuated, the barrier or diverter either stops or diverts any dropped objects prior to the dropped object reaching and potentially damaging the valve member. In another aspect, the tool string tripped in above the DDV includes an acceleration actuated brake that anchors the tool string to a surrounding tubular if the tool string is dropped.

    摘要翻译: 公开了利用井下展开阀(DDV)隔离孔的一部分中的压力的​​方法和装置。 任何故障安全特征的组合可以与DDV一起使用或并入DDV,例如冗余阀构件,向上打开的挡板阀或密封阀下方的计量挡板。 在一个方面,当阀构件打开时,位于DDV的阀构件上方的孔中的阻挡层或分流器允许通过孔,并且当阀构件关闭时致动。 一旦启动,屏障或分流器在落下的物体到达并潜在地损坏阀构件之前停止或转移任何掉落的物体。 在另一方面,在DDV以上跳闸的工具串包括加速致动的制动器,如果工具串下降,则将工具串锚固到周围的管状物。

    Annulus pressure control drilling systems and methods
    10.
    发明授权
    Annulus pressure control drilling systems and methods 有权
    环形压力控制钻井系统及方法

    公开(公告)号:US08122975B2

    公开(公告)日:2012-02-28

    申请号:US12949170

    申请日:2010-11-18

    IPC分类号: E21B7/00

    摘要: In one embodiment, a method for drilling a wellbore includes an act of drilling the wellbore by injecting drilling fluid through a tubular string disposed in the wellbore, the tubular string comprising a drill bit disposed on a bottom thereof. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The drilling fluid and cuttings (returns) flow to a surface of the wellbore via an annulus defined by an outer surface of the tubular string and an inner surface of the wellbore. The method further includes an act performed while drilling the wellbore of measuring a first annulus pressure (FAP) using a pressure sensor attached to a casing string hung from a wellhead of the wellbore. The method further includes an act performed while drilling the wellbore of controlling a second annulus pressure (SAP) exerted on a formation exposed to the annulus.

    摘要翻译: 在一个实施例中,用于钻井井的方法包括通过将钻井流体喷射穿过设置在井筒中的管状钻柱来钻井井的动作,该管柱包括设置在其底部的钻头。 钻井液离开钻头,并从钻头中携带钻屑。 钻井液和钻屑(返回)经由由管柱的外表面和井眼的内表面限定的环形空气流到井筒的表面。 该方法还包括使用连接到从井筒的井口悬挂的套管柱的压力传感器来钻探测井第一环形压力(FAP)的井筒进行的动作。 该方法还包括在钻井时执行的动作,以控制施加在暴露于环空的地层上的第二环带压力(SAP)。