Dual seal packer for corrosive environments
    31.
    发明授权
    Dual seal packer for corrosive environments 失效
    双重密封封隔器,用于腐蚀性环境

    公开(公告)号:US4903777A

    公开(公告)日:1990-02-27

    申请号:US90431

    申请日:1987-08-26

    IPC分类号: E21B33/129

    CPC分类号: E21B33/1291

    摘要: A dual seal packer is shown having a central mandrel which carries upper and lower seal assemblies which straddle an outer cage assembly. Rocker type slips are carried in the cage assembly and are set by a single expander ring. Special support surfaces on the slips cooperate with mating support surfaces on the cage assembly to provide support for the slips under tensive and compressive loading. The slips and upper and lower seal assemblies are set in a single step operation by rotating the mandrel to the right while holding tension on the well string from the surface.

    摘要翻译: 双密封封隔器被示出具有中心心轴,其承载跨越外部笼组件的上部和下部密封组件。 摇摆式滑轨在笼式组件中承载,并由单个扩展器环设置。 滑盖上的特殊支撑表面与保持架组件上的配合支撑表面配合,以在沉重和压缩载荷下为滑块提供支撑。 滑块和上下密封组件通过将心轴向右旋转同时从表面保持井筒上的张力而设置在单步操作中。

    Locking production seal assembly
    32.
    发明授权
    Locking production seal assembly 失效
    锁定生产密封组件

    公开(公告)号:US4657077A

    公开(公告)日:1987-04-14

    申请号:US809615

    申请日:1985-12-16

    IPC分类号: E21B23/02

    CPC分类号: E21B23/02

    摘要: A locking production seal assembly is shown for sealing a well tubing string within the bore of a surrounding well conduit which has been provided with an internal recess. The seal assembly includes a sliding mandrel which is made up in the well tubing string and an outer sleeve which is carried about the mandrel. The outer sleeve has an external seal for sealing with the interior of the surrounding conduit and an internal seal for sealing with the sliding mandrel. A setting sleeve carried between the mandrel and outer sleeve carries a set of setting dogs for engaging the surrounding conduit and a set of locking dogs for locking the setting sleeve to the surrounding sleeve once the assembly is set. The load carrying setting dogs are separated from the mandrel exterior by the setting sleeve to prevent damage to the mandrel exterior.

    摘要翻译: 示出了锁定生产密封组件,用于将井管柱密封在已经设置有内部凹部的周围井道管道的孔内。 密封组件包括在井管柱中构成的滑动心轴和围绕心轴承载的外套筒。 外套筒具有用于与周围导管的内部密封的外部密封件和用于与滑动心轴密封的内部密封件。 承载在心轴和外套筒之间的设置套筒携带一组用于接合周围管道的设置卡爪和一组锁定卡爪,用于在设置组件时将安装套筒锁定到周围的套筒。 负载设置狗通过设置套筒与心轴外部分离,以防止心轴外部损坏。

    Well cementing valve
    33.
    发明授权
    Well cementing valve 失效
    固井阀

    公开(公告)号:US4602684A

    公开(公告)日:1986-07-29

    申请号:US670505

    申请日:1984-11-13

    摘要: A well cementing valve is shown which includes a tubular mandrel having at least one lateral port and which is adapted to be made in a well tubing string. An external seal ring having a seal region circumscribes the mandrel on one side of the lateral port. An axially movable sleeve valve initially covers the mandrel ports on the mandrel exterior. The sleeve valve has a pressure responsive seal area subject to fluid pressure in the mandrel for moving the sleeve valve. An axially slidable protective sleeve initially surrounds the mandrel and the sleeve valve. A plurality of shear pins connect the protective sleeve to the sleeve valve to restrain the sleeve valve against axial displacement. The pressure responsive seal area on the sleeve valve is operable to apply a shearing load on the pins to permit an axial displacement of the protective sleeve and an opposite axial displacement of the sleeve valve to open the ports.

    摘要翻译: 示出了一种固井阀,其包括具有至少一个侧向端口并且适于制成井管柱的管状心轴。 具有密封区域的外部密封环围绕侧向端口一侧的心轴。 一个可轴向移动的套筒阀最初覆盖了心轴外部的心轴端口。 套筒阀具有压力响应密封区域,其受心轴中的流体压力的作用,用于移动套筒阀。 一个可轴向滑动的保护套筒最初围绕心轴和套筒阀。 多个剪切销将保护套管连接到套筒阀以限制套筒阀抵抗轴向位移。 套筒阀上的压力响应密封区域可操作以在销上施加剪切载荷,以允许保护套筒的轴向位移和套筒阀的相反的轴向位移以打开端口。

    Setting tool
    34.
    发明授权
    Setting tool 失效
    设置工具

    公开(公告)号:US4441560A

    公开(公告)日:1984-04-10

    申请号:US494587

    申请日:1983-05-13

    IPC分类号: E21B23/06 E21B43/10 E21B23/02

    CPC分类号: E21B43/10 E21B23/06

    摘要: A setting tool is shown of the type adapted to be made up in a pipe string for releasably engaging a setting sleeve in a well bore. The setting tool has a mandrel having an upper end adapted to be connected in the pipe string and having a lower end. A setting nut is carried on the mandrel having external connecting threads for engaging mating connecting threads located on the interior of a setting sleeve disposed about the lower end of the mandrel. The mandrel is slidably disposed within the setting nut when the setting nut is engaging the setting sleeve and the mandrel is slidable between an extended running-in position and a weight set-down position.A latch collar having at least one latch ear is carried on the mandrel exterior. The setting sleeve has at least one end notch adapted to receive the latch ear for preventing relative rotational movement between the connecting threads of the setting nut and the setting sleeve when the mandrel is in the extended running-in position and allowing relative movement between the connecting threads when the mandrel is in the weigh-down position to release the connecting threads. Torque override is provided for releasing the latch mechanism upon the application of a predetermined rotational torque to the mandrel to thereby allow relative rotational movement between the connecting threads without the application of downward force to the mandrel. The mandrel is spring biased in the extended running-in position and connected by a shear mechanism to the setting sleeve to prevent inadvertent release of the tool during the running in operations.

    摘要翻译: 显示了一种适于在管柱中制成的类型的设置工具,用于可释放地接合井筒中的固定套筒。 固定工具具有心轴,其具有适于连接在管柱中并具有下端的上端。 设置螺母承载在具有外部连接螺纹的心轴上,该连接螺纹用于接合位于围绕心轴下端设置的定位套筒内部的配合连接螺纹。 当调整螺母与固定套接合时,心轴可滑动地设置在调整螺母内,并且心轴可在延长的进入位置和重量设定位置之间滑动。 具有至少一个闩耳的闩锁环承载在心轴外部。 设置套筒具有至少一个端部凹口,其适于接收闩锁耳,用于当心轴处于延伸运行位置时允许相对于调节螺母的连接螺纹和安装套筒之间的相对旋转运动,并允许连接 当心轴处于称重位置以释放连接螺纹时的螺纹。 提供扭矩倍率以在将预定的旋转扭矩施加到心轴上时释放闩锁机构,从而允许连接螺纹之间的相对旋转运动,而不会向心轴施加向下的力。 心轴在延伸的进入位置被弹簧偏置并通过剪切机构连接到设置套筒,以防止在操作中的工具的意外释放。

    Cased hole perforating alternative
    35.
    发明授权
    Cased hole perforating alternative 失效
    套管穿孔替代

    公开(公告)号:US07520335B2

    公开(公告)日:2009-04-21

    申请号:US11007400

    申请日:2004-12-08

    IPC分类号: E21B43/10

    摘要: Casing is scored but not penetrated in one embodiment of a method that allows access to the formation without perforating or section milling the casing. In the run in condition the casing is impervious, to allow cement to be pumped through it to seal the annular space between the casing and the wellbore. After the cement is delivered and displaced through a shoe, the casing is expanded in the regions where it was scored to create openings that go against the wellbore wall. In between the expanded sections the cemented casing offers isolation between adjacent formations.

    摘要翻译: 在允许进入地层的方法的一个实施例中,套管被打分,但是没有被穿透,而没有对套管进行穿孔或分段铣削。 在运行条件下,外壳是不渗透的,以允许水泥泵送通过它来密封外壳和井眼之间的环形空间。 在水泥通过鞋子输送和移位之后,套管在其被刻痕的区域中膨胀以产生抵靠井筒壁的开口。 在扩张部分之间,胶合套管在相邻地层之间提供隔离。

    Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting elements
    36.
    发明授权
    Drilling efficiency through beneficial management of rock stress levels via controlled oscillations of subterranean cutting elements 有权
    通过地下切割元件的受控振荡有利地管理岩石应力水平,从而提高钻井效率

    公开(公告)号:US07341116B2

    公开(公告)日:2008-03-11

    申请号:US11038889

    申请日:2005-01-20

    IPC分类号: E21B7/24

    CPC分类号: E21B7/24

    摘要: A device and system for improving efficiency of subterranean cutting elements uses a controlled oscillation super imposed on steady drill bit rotation to maintain a selected rock fracture level. In one aspect, a selected oscillation is applied to the cutting element so that at least some of the stress energy stored in an earthen formation is maintained after fracture of the rock is initiated. Thus, this maintained stress energy can thereafter be used for further crack propagation. In one embodiment, an oscillation device positioned adjacent to the drill bit provides the oscillation. A control unit can be used to operate the oscillation device at a selected oscillation. In one arrangement, the control unit performs a frequency sweep to determine an oscillation that optimizes the cutting action of the drill bit and configures the oscillation device accordingly. One or more sensors connected to the control unit measure parameters used in this determination.

    摘要翻译: 用于提高地下切割元件效率的装置和系统使用施加在稳定钻头旋转上的受控振荡来保持选定的岩石断裂水平。 在一个方面,选择的振动被施加到切割元件,使得在开始破坏岩石之后,保持存储在土层中的至少一些应力能量。 因此,此后保持的应力能量可以用于进一步的裂纹扩展。 在一个实施例中,邻近钻头定位的振动装置提供振荡。 可以使用控制单元以选定的振荡来操作振荡装置。 在一种布置中,控制单元执行频率扫描以确定优化钻头的切割动作并相应地配置振荡装置的振荡。 连接到控制单元的一个或多个传感器测量在该确定中使用的参数。

    Expandable slip ring
    37.
    发明申请
    Expandable slip ring 有权
    可膨胀滑环

    公开(公告)号:US20080047704A1

    公开(公告)日:2008-02-28

    申请号:US11402077

    申请日:2006-07-07

    IPC分类号: E21B33/129

    CPC分类号: E21B43/106

    摘要: An expandable slip ring is used to secure attachment of an expanded tubular to a surrounding tubular. It features elongated generally axially oriented openings separated by narrow segments. As a swage is advanced within a tubular that has the slip ring outside it the narrow segments or tabs expand and can break but the ring is still held to its shape as the expansion progresses due to the integrity of other tabs that can subsequently break as the swage advances within the tubular that is surrounded by the slip ring. The integrity of the slip ring is enhanced for storage and run in while the expansion characteristics are more uniform as the ring retains some structural integrity during much of the expansion process.

    摘要翻译: 可膨胀滑环用于固定一个膨胀的管子与周围的管子的连接。 它具有由窄段分开的细长的大致轴向定向的开口。 由于在管内具有滑环的模具被推进,窄的区段或突片膨胀并且可以断裂,但是当膨胀进行时,环仍然保持其形状,这是由于随后可能破坏的其它突片的完整性 在由滑环包围的管状物内进行挤压。 增强滑环的完整性以便储存和运行,同时膨胀特性更均匀,因为在大部分膨胀过程中环保持一定的结构完整性。

    Flexible swedge
    38.
    发明授权
    Flexible swedge 有权
    弹性波纹

    公开(公告)号:US06450261B1

    公开(公告)日:2002-09-17

    申请号:US09685264

    申请日:2000-10-10

    申请人: John L. Baugh

    发明人: John L. Baugh

    IPC分类号: E21B2910

    CPC分类号: E21B43/105 E21B43/103

    摘要: A swedge assembly is disclosed which has the capability of allowing for a sealing connection between an inner tubular and an outer tubular where the outer tubular has significant out of roundness. A resilient segment or segments is disposed on the swedge in contact with the inner tubular to be expanded so as to fill any voids created by out of roundness of the outer tubular. The resilient material may be an elastomer or any pliable metallic or any other material compatible with the applicable well bore conditions.

    摘要翻译: 公开了一种楔形组件,其具有允许内管和外管之间的密封连接的能力,其中外管具有显着的不圆度。 弹性段或段设置在与要扩展的内管接触的楔形件上,以便填充由外管的圆度引起的任何空隙。 弹性材料可以是弹性体或任何柔韧的金属或与适用的井眼条件相适应的任何其它材料。

    Float valve assembly for downhole tubulars
    39.
    发明授权
    Float valve assembly for downhole tubulars 失效
    用于井下管的浮阀组件

    公开(公告)号:US06401822B1

    公开(公告)日:2002-06-11

    申请号:US09602326

    申请日:2000-06-23

    申请人: John L. Baugh

    发明人: John L. Baugh

    IPC分类号: E21B3408

    摘要: A check valve assembly for the bottom of a casing string with increased open area is provided. Multiple check valves are provided for assurance of ultimate closure. Bypass flow paths are available during run in that increase the normal available open area from about 3 square inches to a range of about 10 square inches and even higher. Components freely float during run in to provide the greater open area and are subsequently repositioned with known techniques of dropping a ball and pressurization when the casing has reached the desired depth.

    摘要翻译: 提供了一种具有增加的开口面积的套管柱底部的止回阀组件。 提供多个止回阀以确保最终关闭。 旁路流路在运行期间可用,从而将正常可用的开放面积从约3平方英寸增加到约10平方英寸甚至更高的范围。 组件在运行期间自由浮动以提供更大的开放面积,并且随后通过已知的技术将球排出并且当套管达到期望的深度时加压。

    Apparatus for dropping articles downhole
    40.
    发明授权
    Apparatus for dropping articles downhole 有权
    用于将物品落入井下的装置

    公开(公告)号:US06206095B1

    公开(公告)日:2001-03-27

    申请号:US09332233

    申请日:1999-06-14

    申请人: John L. Baugh

    发明人: John L. Baugh

    IPC分类号: E21B3305

    CPC分类号: E21B33/05

    摘要: A plug-dropping head in which the objects to be dropped are placed in individual discrete passages. A motor-driven or hand-operated rotating member orients an entrance to a passage going through it to, in series, individual passages in the housing for sequential dropping of objects downhole. A relief port is provided so that as the rotating outlet member moves from one passage in the housing to the next, the relief passage allows continuing flow delivered by the surface pump.

    摘要翻译: 其中将待掉落物体放置在独立离散通道中的插头头。 马达驱动或手动旋转构件将通过其的通道的入口定向到壳体中的单独通道,以顺序地将物体落下。 提供了一个释放口,使得当旋转出口构件从壳体中的一个通道移动到下一个通道时,释放通道允许由表面泵输送的持续的流动。