Pressure Set Liner Hanger/Packer without Tubing Wall Port

    公开(公告)号:US20170292339A1

    公开(公告)日:2017-10-12

    申请号:US15374144

    申请日:2016-12-09

    CPC classification number: E21B23/01 E21B23/04 E21B23/06 E21B33/1293 E21B43/10

    Abstract: Wall openings in a mandrel of a liner hanger/packer are eliminated and setting is accomplished with pressure against a landed object in a running tool. The wall of the running tool leads to a sealed annular space with a movable seal attached to a setting sleeve and the other end is a packer cup supported by the running tool. The setting sleeve sequentially sets the slips and releases the running tool followed by setting the packer seal. Optionally a dog sub can be used to set with set down weight on the setting sleeve. The set positions are locked in. The slips can be alternatively set with release of a contained spring force. The setting sleeve seal can be sheared out to allow removal of the running tool.

    Compliant seal for irregular casing

    公开(公告)号:US09617822B2

    公开(公告)日:2017-04-11

    申请号:US14095315

    申请日:2013-12-03

    CPC classification number: E21B33/1285 E21B33/12 E21B33/1208

    Abstract: A setting assembly for a packer seal features peripherally mounted rod pistons that abut the seal to be set by advancing the seal relative to a tapered surface. When parts of the seal engage an inner tubular wall before other parts of the seal the continuation of application of hydraulic pressure to the pistons moves parts of the seal that have yet to make contact with the tubular wall further relative to the ramp so that plastic deformation of the seal assembly can occur to allow portions thereof to move radially further outwardly to seal in the region where the radius of the tubular is enlarged. When hydraulic pressure is applied to the pistons in an opposite direction a lock mechanism is defeated and the c-ring or scroll reverts to a smaller shape optionally aided by a garter spring so that the packer can be selectively retrieved.

    Low Profile Remote Trigger for Hydrostatically Set Borehole Tools

    公开(公告)号:US20180045004A1

    公开(公告)日:2018-02-15

    申请号:US15234716

    申请日:2016-08-11

    Inventor: Keven O'Connor

    CPC classification number: E21B23/00 E21B23/01

    Abstract: A pin whose movement triggers setting of the borehole tool, is initially held by a collet that is supported off a surrounding housing. A spring is supported off the pin and would push a housing that locks the collet to the pin axially to unsupport the collet but for the presence of a Kevlar® wire that has an associated heater. The wire pulls the housing that locks the collet against the spring bias and has an end attached to the pin. Melting the wire allows the spring to move the housing that traps the collet to the pin. At that point hydrostatic pressure can move the pin to either open a port on the borehole tool to set it hydrostatically or to move an actuation rod attached to the pin to set the borehole tool mechanically or with a combination of mechanical and hydraulic force.

    Interventionless method of setting a casing to casing annular packer
    8.
    发明授权
    Interventionless method of setting a casing to casing annular packer 有权
    套管环形封隔器的无干扰方法

    公开(公告)号:US09580989B2

    公开(公告)日:2017-02-28

    申请号:US14482651

    申请日:2014-09-10

    CPC classification number: E21B33/1208 E21B23/06 E21B33/128

    Abstract: An annular packer to create an annulus seal that includes a solid mandrel with a first end, second end, central bore, and exterior. The annular packer includes first and second sealing elements connected to the exterior. The second sealing element is expanded radially by axial movement of at least a portion of the second sealing element. The annular packer includes a first piston movable from a first position to a second position. Pressure applied exterior of the mandrel moves a portion of the first sealing element away from the mandrel to create a first seal causing a pressure differential. The pressure differential moves the first piston to its second position axially moving at least a portion of the second sealing element to create a second seal against the casing. A port may be opened releasing the first seal, but the second seal remains set against the casing.

    Abstract translation: 环形封隔器,用于产生环形密封件,其包括具有第一端,第二端,中心孔和外部的实心心轴。 环形封隔器包括连接到外部的第一和第二密封元件。 第二密封元件通过第二密封元件的至少一部分的轴向移动而径向扩张。 环形封隔器包括可从第一位置移动到第二位置的第一活塞。 心轴的压力施加外部将第一密封元件的一部分远离心轴移动以形成导致压力差的第一密封。 压差将第一活塞移动到其第二位置,轴向移动第二密封元件的至少一部分,以产生抵靠壳体的第二密封。 可以打开端口,释放第一密封件,但是第二密封件保持抵靠壳体。

    Annulus mounted potential energy driven setting tool
    9.
    发明授权
    Annulus mounted potential energy driven setting tool 有权
    环形安装了潜在的能量驱动设置工具

    公开(公告)号:US09488028B2

    公开(公告)日:2016-11-08

    申请号:US14167189

    申请日:2014-01-29

    CPC classification number: E21B33/12 E21B23/04 E21B23/06

    Abstract: An actuator and method for setting a subterranean tool uses an externally mounted actuator on a tubular string that is operably engaged to the tool to be actuated. At the desired location for actuation a signal is given to a valve assembly. The opening of the valve releases the pressurized compressible fluid against a floating piston. The piston drives viscous fluid ahead of itself through the now open valve that in turn drives an actuating piston whose movement sets the tool. The triggering mechanism to open the valve can be a variety of methods including an acoustic signal, a vibration signal, a change in magnetic field, or elastic deformation of the tubular wall adjacent the valve assembly.

    Abstract translation: 用于设置地下工具的致动器和方法使用可操作地接合到待致动工具的管状柱体上的外部安装的致动器。 在用于致动的期望位置处,向阀组件提供信号。 阀的打开将压缩可压缩流体释放到浮动活塞上。 活塞通过现在打开的阀在其自身前方驱动粘性流体,该阀继而驱动致动活塞,其运动设定工具。 打开阀的触发机构可以是包括声学信号,振动信号,磁场变化或邻近阀组件的管状壁的弹性变形的多种方法。

    Self-energized seal or centralizer and associated setting and retraction mechanism
    10.
    发明授权
    Self-energized seal or centralizer and associated setting and retraction mechanism 有权
    自动密封或扶正器及相关的设定和退回机构

    公开(公告)号:US09341044B2

    公开(公告)日:2016-05-17

    申请号:US13675681

    申请日:2012-11-13

    CPC classification number: E21B33/126 E21B17/1014

    Abstract: A self energizing structure can function as a centralizer or as a seal when allowed to spring out after a retainer is moved away from an overlying position for run in to protect the structure. Segments extend from a common base ring and are radially offset during run in. Alternating segments have landing surfaces on opposed ends such that on release of the structure the intervening segments land on such surfaces to form a cohesive single layer with all segments circumferentially aligned and against a surrounding tubular or the borehole wall. The structure is held retracted with a bi-directionally movable sleeve operable in a variety of ways from the surface. Internally the sleeve has splines to push the segments with the landing surfaces back so that the structure can collapse back into the sleeve for removal. Structures can be stacked and used as centralizers with alternating segments removed.

    Abstract translation: 自动启动结构可以用作扶正器或作为密封件,当允许在保持器从覆盖位置移开之后弹出以保护结构。 分段从公共基座环延伸并且在运行期间径向偏移。交替段在相对的端部上具有着陆表面,使得在结构释放时,中间段落在这些表面上以形成粘结的单层,所有段都周向对齐并抵抗 周围的管状物或钻孔壁。 该结构通过可从表面以各种方式操作的双向可移动的套筒保持缩回。 在内部,套筒具有花键以将着陆面向后推动段,使得结构可以折回到套筒中以便移除。 可以将结构堆叠并用作移除交替段的扶正器。

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