Pantograph underreamer
    1.
    发明授权
    Pantograph underreamer 有权
    受电影响者

    公开(公告)号:US06644422B1

    公开(公告)日:2003-11-11

    申请号:US09929175

    申请日:2001-08-13

    IPC分类号: E21B728

    CPC分类号: E21B10/32

    摘要: An underreamer for forming a cavity within a well bore is provided. The underreamer may include a housing rotatably disposed within the well bore. The underreamer may also include an actuation rod slidably positioned in the housing. The underreamer may further include a plurality of cutter sets where each cutter set is pivotally coupled to the housing and the actuation rod. The cutter sets are also pivotally coupled together. An axial force applied to the actuation rod operates to slide the actuation rod relative to the housing and extend the cutter sets from a retracted position radially outward relative to the housing to form the cavity when the housing is rotated.

    摘要翻译: 提供了用于在井眼内形成空腔的扩孔器。 扩孔器可以包括可旋转地设置在井眼内的壳体。 该扩孔器还可以包括可滑动地定位在壳体中的致动杆。 该扩孔器还可以包括多个切割器组,其中每个切割器组可枢转地联接到壳体和致动杆。 刀具组也可枢转地连接在一起。 施加到致动杆的轴向力操作以相对于壳体滑动致动杆,并且在壳体旋转时将切割器组从缩回位置径向向外延伸以形成空腔。

    Pantograph underreamer and method for forming a well bore cavity
    2.
    发明授权
    Pantograph underreamer and method for forming a well bore cavity 失效
    受电弓底流器和形成井筒腔的方法

    公开(公告)号:US06591922B1

    公开(公告)日:2003-07-15

    申请号:US09929568

    申请日:2001-08-13

    IPC分类号: B21B728

    CPC分类号: E21B10/32

    摘要: An underreamer for forming a cavity within a well bore may include a housing rotatably disposed within the well bore. The underreamer may also include an actuation rod slidably positioned in the housing. The underreamer may further include a plurality of cutter sets nested together around the actuation rod while the cutter sets are in a retracted position where each cutter set is pivotally coupled to the housing and the actuation rod. The cutter sets are also pivotally coupled together. An axial force applied to the actuation rod operates to slide the actuation rod relative to the housing and extend the cutter sets radially outward relative to the housing to form the cavity when the housing is rotated.

    摘要翻译: 用于在井眼内形成空腔的扩孔器可以包括可旋转地设置在井眼内的壳体。 该扩孔器还可以包括可滑动地定位在壳体中的致动杆。 所述扩孔器还可以包括在致动杆周围嵌套在一起的多个切割器组,同时切割器组处于缩回位置,其中每个切割器组可枢转地联接到壳体和致动杆。 刀具组也可枢转地连接在一起。 施加到致动杆的轴向力用于相对于壳体滑动致动杆,并且相对于壳体径向向外延伸切割器组,以在壳体旋转时形成空腔。

    Multi-blade underreamer
    3.
    发明授权
    Multi-blade underreamer 失效
    多刀片扩音器

    公开(公告)号:US06595302B1

    公开(公告)日:2003-07-22

    申请号:US09932487

    申请日:2001-08-17

    IPC分类号: E21B728

    CPC分类号: E21B10/322

    摘要: An underreamer for forming a cavity within a well bore includes a housing rotatably disposed within the well bore. The underreamer also includes a plurality of cutting blades pivotally coupled to the housing. The underreamer further includes a piston slidably disposed within the housing and adapted to engage the cutting blades. The piston is operable to receive a downwardly disposed force operable slide the piston relative to the housing. The sliding movement of the piston extends the cutting blades outwardly from a retracted position relative to the housing. The underreamer also includes a passage disposed within the piston and operable to communicate a fluid received via an annulus of the housing to the cutting blades.

    摘要翻译: 用于在井眼内形成空腔的扩孔器包括可旋转地设置在井眼内的壳体。 该扩孔器还包括多个可枢转地连接到壳体的切割刀片。 所述扩孔器还包括可滑动地设置在所述壳体内并适于接合所述切割刀片的活塞。 活塞可操作以接收向下布置的力,以可操作地相对于壳体滑动活塞。 活塞的滑动运动使切割刀片相对于壳体从缩回位置向外延伸。 所述扩孔器还包括设置在所述活塞内并可操作以将经由所述壳体的环空接收的流体连通到所述切割刀片的通道。

    Single-blade underreamer
    4.
    发明授权
    Single-blade underreamer 失效
    单刀片扩充器

    公开(公告)号:US06595301B1

    公开(公告)日:2003-07-22

    申请号:US09932482

    申请日:2001-08-17

    IPC分类号: E21B1034

    CPC分类号: E21B10/322

    摘要: A single-blade underreamer for forming a cavity within a well bore includes a housing rotatably disposed within the well bore, and a stabilizer coupled to the housing. The stabilizer is operable to stabilize the housing within the well bore during formation of the cavity. The underreamer also includes a single cutter pivotally coupled to the housing, and a piston slidably disposed within the housing and adapted to engage the cutter. A downwardly disposed force applied to the piston is operable slide the piston relative to the housing to correspondingly extend the cutter outwardly relative to the housing from a retracted position to form the cavity during rotation of the housing.

    摘要翻译: 用于在井眼内形成空腔的单刀片扩孔器包括可旋转地设置在井眼内的壳体和联接到壳体的稳定器。 稳定器可操作以在形成空腔期间将壳体稳定在井眼内。 所述扩孔器还包括可旋转地联接到所述壳体的单个切割器,以及可滑动地设置在所述壳体内并适于接合所述切割器的活塞。 施加到活塞的向下设置的力可操作地相对于壳体滑动活塞,以使切割器相对于壳体从缩回位置向外相对地延伸,以在壳体旋转期间形成空腔。

    Pantograph underreamer
    5.
    发明授权
    Pantograph underreamer 失效
    受电影响者

    公开(公告)号:US06722452B1

    公开(公告)日:2004-04-20

    申请号:US10079444

    申请日:2002-02-19

    IPC分类号: E21B728

    CPC分类号: E21B21/10 E21B10/322

    摘要: An underreamer for forming a cavity within a well bore includes a housing adapted to be rotatably disposed within the well bore and a piston slidably coupled to the housing. The underreamer also includes a first cutter having a first end and a second end. The first end of the first cutter is pivotally coupled to the housing. The underreamer further includes a second cutter having a first end and a second end. The first end of the second cutter is coupled to the piston. The second end of the first cutter is coupled to the second cutter such that an axial force applied to the piston is operable to slide the piston relative to the housing and extend the second end of the second cutter radially outward relative to the housing from a retracted position to form the cavity when the housing is rotated relative to the well bore.

    摘要翻译: 用于在井眼内形成空腔的扩孔器包括适于可旋转地设置在井眼内的壳体和可滑动地联接到壳体的活塞。 该扩孔器还包括具有第一端和第二端的第一切割器。 第一切割器的第一端枢转地联接到壳体。 所述扩孔器还包括具有第一端和第二端的第二切割器。 第二切割器的第一端联接到活塞。 第一切割器的第二端联接到第二切割器,使得施加到活塞的轴向力可操作以相对于壳体滑动活塞并且使第二切割器的第二端相对于壳体径向向外从缩回 当壳体相对于井眼旋转时形成空腔的位置。

    Pantograph underreamer
    6.
    发明授权
    Pantograph underreamer 失效
    受电影响者

    公开(公告)号:US06575255B1

    公开(公告)日:2003-06-10

    申请号:US09929551

    申请日:2001-08-13

    IPC分类号: E21B1062

    CPC分类号: E21B10/32 E21B17/1021

    摘要: An underreamer for forming a cavity within a well bore is provided. The underreamer may include a housing rotatably disposed within the well bore. The underreamer may also include a sleeve slidably positioned around the housing. The underreamer may further include at least one cutter set where each cutter set is pivotally coupled to the housing and the sleeve. An axial force applied to the sleeve operates to slide the sleeve relative to the housing and extend each cutter set from a retracted position radially outward relative to the housing to form the cavity when the housing is rotated.

    摘要翻译: 提供了用于在井眼内形成空腔的扩孔器。 扩孔器可以包括可旋转地设置在井眼内的壳体。 该扩孔器还可以包括可滑动地定位在壳体周围的套筒。 所述扩孔器还可以包括至少一个切割器组,其中每个切割器组可枢转地联接到所述壳体和所述套筒。 施加到套筒的轴向力用于相对于壳体滑动套筒并且使每个刀具组从相对于壳体的径向向外的缩回位置延伸,以在壳体旋转时形成腔。

    Milling tool and method for milling multiple casing strings
    7.
    发明授权
    Milling tool and method for milling multiple casing strings 失效
    用于铣削多个套管柱的铣削工具和方法

    公开(公告)号:US5150755A

    公开(公告)日:1992-09-29

    申请号:US680702

    申请日:1991-04-04

    IPC分类号: B23B5/16 E21B10/46 E21B29/00

    摘要: A cutting tool (22) includes a plurality of pivoted blades (36) for swinging outwardly to an expanded radial position for first cutting the walls of multiple casing strings (10, 11), and then removing a predetermined length of the casing strings (10, 11) simultaneously in a cutting action. Pivoted blades (36) have cutting elements (66) of a similar size and shape positioned about upper, lower, and outer sides (60, 62, 64) of the blades (36). The lower sides (62) of the blades (36) engage the upper annular cut ends of the casing strings (10, 11) in a cutting action without tripping or removal from the bore hole.

    摘要翻译: 切割工具(22)包括多个枢转叶片(36),用于向外摆动到扩展的径向位置,用于首先切割多个套管柱(10,11)的壁,然后移除预定长度的套管柱(10 ,11)同时进行切割动作。 枢轴刀片(36)具有围绕叶片(36)的上,下和外侧(60,62,64)定位的类似尺寸和形状的切割元件(66)。 叶片(36)的下侧(62)在切割作用下与套管柱(10,11)的上环形切割端接合,而不会从钻孔中脱落或移除。

    One trip cemented expandable monobore liner system and method
    8.
    发明授权
    One trip cemented expandable monobore liner system and method 有权
    一次胶合可膨胀单柱内衬系统和方法

    公开(公告)号:US07708060B2

    公开(公告)日:2010-05-04

    申请号:US11348754

    申请日:2006-02-07

    IPC分类号: E21B34/06

    摘要: An apparatus to protect the mounting area of casing and a locating profile and optionally a sliding sleeve valve and a flow path from the outside of the valve to the annulus when subsequent attachment of an expanded liner is intended and the expanded liner is to be cemented in place. A barrier sleeve, nose, and outer sleeve define a sealed cavity having a loose incompressible material inside that covers the mounting location on the casing. A locating profile and an optional sliding sleeve valve and a flow path from the outside of the valve to the annulus can be provided. The cementing of the casing takes place through the barrier sleeve. After the cementing, the sleeve and nose are drilled out and the incompressible material is removed to the surface with the drill cuttings. A liner is inserted in the casing and is preferably expanded into sealing contact with the mounting location on the casing. After expansion a cement retainer positioned at the bottom of the expanded liner and the sliding sleeve located either above the mounting location of the liner in the casing shoe or in the liner below the mounted top section allow cement to be delivered outside the expanded liner and the displaced wellbore fluid to return into the casing through so that the liner can be cemented. The cement retainer can be delivered with either the liner or the expansion tools to allow expansion and cementing in a single trip. A shifting tool can be run on the expansion string to actuate the sliding sleeve and if necessary to allow for cement to be pumped from the drill string into the annulus through the sliding sleeve. The cement retainer can be milled out in a separate trip.

    摘要翻译: 一种用于保护壳体的安装区域和定位轮廓以及可选的滑动套筒阀以及从阀外部到环形空间的流动路径的装置,当随后附接膨胀衬套时,将膨胀衬套粘结在 地点。 阻挡套筒,鼻子和外套筒限定了密封腔体,其具有内部的松散的不可压缩材料,其覆盖壳体上的安装位置。 可以提供定位轮廓和可选的滑动套筒阀以及从阀外部到环空的流动路径。 外壳的固定通过隔离套筒进行。 固井后,钻出套筒和鼻子,用钻屑将不可压缩材料移至表面。 衬套插入到壳体中,并且优选地膨胀成与壳体上的安装位置密封接触。 在膨胀之后,位于膨胀衬垫底部的水泥保持器和位于套管鞋衬里的衬套的安装位置上方或安装的顶部部分下方的衬套中的滑动套管允许水泥被输送到膨胀衬套外部,并且 位移的井筒流体返回到壳体中,使得衬套可以胶合。 水泥保持器可与衬套或膨胀工具一起运输,以允许在单次行程中进行膨胀和固井。 可以在膨胀绳上运行换档工具来致动滑动套筒,并且如果需要允许水泥通过滑动套筒从钻柱泵送到环形空间中。 水泥保持器可以在单独的行程中铣出。

    One trip cemented expandable monobore liner system and method
    9.
    发明授权
    One trip cemented expandable monobore liner system and method 有权
    一次胶合可膨胀单柱内衬系统和方法

    公开(公告)号:US07458422B2

    公开(公告)日:2008-12-02

    申请号:US11349015

    申请日:2006-02-07

    IPC分类号: E21B43/10 E21B33/13

    摘要: A liner is inserted in the casing and is preferably expanded into sealing contact with the mounting location on the casing. After expansion a cement retainer positioned at the bottom of the expanded liner and the sliding sleeve located either above the mounting location of the liner in the casing shoe or in the liner below the mounted top section allow cement to be delivered outside the expanded liner and the displaced wellbore fluid to return into the casing through so that the liner can be cemented. The cement retainer can be delivered with either the liner or the expansion tools to allow expansion and cementing in a single trip. A shifting tool can be run on the expansion string to actuate the sliding sleeve and if necessary to allow for cement to be pumped from the drill string into the annulus through the sliding sleeve. The cement retainer can be milled out in a separate trip.

    摘要翻译: 衬套插入到壳体中,并且优选地膨胀成与壳体上的安装位置密封接触。 在膨胀之后,位于膨胀衬垫底部的水泥保持器和位于套管鞋衬里的衬套的安装位置上方或安装的顶部部分下方的衬套中的滑动套管允许水泥被输送到膨胀衬套外部,并且 位移的井筒流体返回到壳体中,使得衬套可以胶合。 水泥保持器可与衬套或膨胀工具一起运输,以允许在单次行程中进行膨胀和固井。 可以在膨胀绳上运行换档工具来致动滑动套筒,并且如果需要允许水泥通过滑动套筒从钻柱泵送到环形空间中。 水泥保持器可以在单独的行程中铣出。

    WELLBORE ANCHOR
    10.
    发明申请
    WELLBORE ANCHOR 审中-公开
    井身锚

    公开(公告)号:US20120298378A1

    公开(公告)日:2012-11-29

    申请号:US13250896

    申请日:2011-09-30

    IPC分类号: E21B23/01

    CPC分类号: E21B23/01

    摘要: An anchor tool has a body, a plurality of slips coupled to the body, each of the slips hingedly coupled to a link at a first end, each of the slips slidably retained in a channel at a second end and each of the slips operably moveable from a retracted orientation to an expanded orientation.

    摘要翻译: 锚固工具具有主体,联接到主体的多个滑动件,每个滑块在第一端处铰接地联接到连杆,每个滑动件在第二端处可滑动地保持在通道中,并且每个滑动件可操作地移动 从缩回方向到扩展方向。