Hydraulic Artificial Lift for Driving Downhole Pumps

    公开(公告)号:US20180135620A1

    公开(公告)日:2018-05-17

    申请号:US15800717

    申请日:2017-11-01

    摘要: A hydraulic lift apparatus for operating a downhole pump features a hydraulic linear actuator with a piston longitudinally slidable on a central axis of a rotatable portion of a housing. An anti-rotation rod runs longitudinally through the piston at a position radially offset outwardly from the central axis to prevent rotation between the piston and housing. A stationary motor powers a drive train whose output is connected to the rotatable portion of the housing and centered on the central axis. The actuator is one-way actuator with a hydraulically driven upstroke. A leak detection passage extends through the piston to collect fluid that has leaked across the piston seals and convey it to a leak detection port and associated containment tank. A position sensor for monitoring the piston movement features a sensing rod depending downwardly into a hollow piston shaft carried by the piston and connected to the pump rod.

    Continuous well string injector using multi-piston cylinder blocks for application of skate pressure

    公开(公告)号:US10167686B2

    公开(公告)日:2019-01-01

    申请号:US15067338

    申请日:2016-03-11

    摘要: A continuous well string injector features a frame carrying a pair of endless chain conveyors on opposite sides of a pathway. Each chain carries gripper dies for engaging the continuous well string when received in the pathway. A respective skate and cylinder block reside in the closed loop path of each chain. Each cylinder block features a plurality of blind bores having open ends facing toward the respective skate, and a respective piston is slidably disposed within each bore. Hydraulic extension and retraction ports open into the cylinder bores on opposite sides of the piston, whereby back and forth displacement of the pistons forces the skates toward and away from one another to grip and release the continuous well string. A front wall of the frame has an open horizontal gap aligned with the pathway to enable lateral entrance and exit of the continuous string to and from the pathway.

    Continuous Well String Injector Using Multi-Piston Cylinder Blocks for Application of Skate Pressure
    3.
    发明申请
    Continuous Well String Injector Using Multi-Piston Cylinder Blocks for Application of Skate Pressure 审中-公开
    连续井式注射器使用多活塞缸体应用溜冰压力

    公开(公告)号:US20160265290A1

    公开(公告)日:2016-09-15

    申请号:US15067338

    申请日:2016-03-11

    IPC分类号: E21B19/22 E21B19/08 B66D3/00

    摘要: A continuous well string injector features a frame carrying a pair of endless chain conveyors on opposite sides of a pathway. Each chain carries gripper dies for engaging the continuous well string when received in the pathway. A respective skate and cylinder block reside in the closed loop path of each chain. Each cylinder block features a plurality of blind bores having open ends facing toward the respective skate, and a respective piston is slidably disposed within each bore. Hydraulic extension and retraction ports open into the cylinder bores on opposite sides of the piston, whereby back and forth displacement of the pistons forces the skates toward and away from one another to grip and release the continuous well string. A front wall of the frame has an open horizontal gap aligned with the pathway to enable lateral entrance and exit of the continuous string to and from the pathway.

    摘要翻译: 连续井柱喷射器具有在路径的相对侧上承载一对环形链式输送机的框架。 每个链条承载夹持器模具,用于当接收在通道中时与连续的井筒接合。 各个滑冰板和气缸体位于每个链条的闭环路径中。 每个气缸体具有多个盲孔,其具有朝向各个滑冰板的开口端,并且相应的活塞可滑动地设置在每个孔内。 液压延伸和回缩口在活塞的相对两侧的气缸孔内打开,活塞的往复运动使溜冰鞋相互朝向和远离,从而夹紧和释放连续的井筒。 框架的前壁具有与该通道对准的开放的水平间隙,以使连续的串能够和/或不从该路径的入口和出口。

    Hydraulic artificial lift for driving downhole pumps

    公开(公告)号:US10774829B2

    公开(公告)日:2020-09-15

    申请号:US15800717

    申请日:2017-11-01

    摘要: A hydraulic lift apparatus for operating a downhole pump features a hydraulic linear actuator with a piston longitudinally slidable on a central axis of a rotatable portion of a housing. An anti-rotation rod runs longitudinally through the piston at a position radially offset outwardly from the central axis to prevent rotation between the piston and housing. A stationary motor powers a drive train whose output is connected to the rotatable portion of the housing and centered on the central axis. The actuator is one-way actuator with a hydraulically driven upstroke. A leak detection passage extends through the piston to collect fluid that has leaked across the piston seals and convey it to a leak detection port and associated containment tank. A position sensor for monitoring the piston movement features a sensing rod depending downwardly into a hollow piston shaft carried by the piston and connected to the pump rod.

    Foldable Continuous Rod Guide and a Jib for Servicing Rig for Supporting Same

    公开(公告)号:US20190085647A1

    公开(公告)日:2019-03-21

    申请号:US15709817

    申请日:2017-09-20

    IPC分类号: E21B19/22

    CPC分类号: E21B19/22

    摘要: An foldable guide for a continuous rod injector features first and second segments of similar length and a shorter third segment. In a fully folded state of the guide, the shorter third segment is foldable into a position contained between facing-together concave sides of the first and segments for improved collapse of the guide into a compact state for storage or transport. A proximal end of the first segment is mounted to the injector, which is carried on a mast having a selectively deployable jib thereon at an elevation above the installed position of the injector. The jib is movable between a slant-mode condition reaching outward from the mast and a vertical-mode position retracted into a more compact relation with the mast. The slant-mode condition provides improved support and stability by providing a more direct overhead support for the rod guide in slant well applications.

    Spherical ball skate for continuous well string injectors
    6.
    发明授权
    Spherical ball skate for continuous well string injectors 有权
    用于连续油井喷油器的球形溜冰鞋

    公开(公告)号:US09488016B2

    公开(公告)日:2016-11-08

    申请号:US14787407

    申请日:2014-05-02

    IPC分类号: E21B19/08 E21B19/22 B66D3/00

    CPC分类号: E21B19/08 B66D3/003 E21B19/22

    摘要: A skate for an injector apparatus in which gripper dies on a pair of endless chains driven around respective closed loop paths on different sides a continuous wellbore string are forced against the continuous string by forcing a set of the skates toward theretoward from inside the closed loop paths of the endless chains. The inventive skate features a skate body carrying a plurality of spherical balls that are exposed on a side of the skate that faces toward the continuous string in order to allow riding of endless chains over exposed surfaces of the spherical balls as the endless chains are driven through the respective closed-loop paths, whereby the gripper dies ride over the spherical balls of said skates under the forcing of said skates toward the continuous string.

    摘要翻译: 用于注射器装置的滑冰板,其中夹持器在一对环形链上死亡,所述环形链围绕不同侧面上的相应闭环路径驱动连续的井眼柱,通过迫使一组溜冰鞋从闭环路径内向内朝向连续的井筒 的无尽的链条。 本发明的溜冰鞋具有一个溜冰体,该溜冰体承载多个球形球,其露在溜冰板的面向连续弦的一侧,以便当环形链被驱动通过时能够将环形链条围绕在球形球的暴露表面上。 相应的闭环路径,由此所述夹具在所述溜冰鞋的强迫下朝向所述连续弦行进,所述擒纵机构在所述溜冰鞋的球形球之上。

    Spherical Ball Skate for Continuous Well String Injectors
    7.
    发明申请
    Spherical Ball Skate for Continuous Well String Injectors 有权
    用于连续井弦注射器的球形溜冰鞋

    公开(公告)号:US20160069143A1

    公开(公告)日:2016-03-10

    申请号:US14787407

    申请日:2014-05-02

    IPC分类号: E21B19/08 B66D3/00 E21B19/22

    CPC分类号: E21B19/08 B66D3/003 E21B19/22

    摘要: A skate for an injector apparatus in which gripper dies on a pair of endless chains driven around respective closed loop paths on different sides a continuous wellbore string are forced against the continuous string by forcing a set of the skates toward theretoward from inside the closed loop paths of the endless chains. The inventive skate features a skate body carrying a plurality of spherical balls that are exposed on a side of the skate that faces toward the continuous string in order to allow riding of endless chains over exposed surfaces of the spherical balls as the endless chains are driven through the respective closed-loop paths, whereby the gripper dies ride over the spherical balls of said skates under the forcing of said skates toward the continuous string.

    摘要翻译: 用于注射器装置的滑冰板,其中夹持器在一对环形链上死亡,所述环形链围绕不同侧面上的相应闭环路径驱动连续的井眼柱,通过迫使一组溜冰鞋从闭环路径内向内朝向连续的井筒 的无尽的链条。 本发明的溜冰鞋具有一个溜冰体,该溜冰体承载多个球形球,其露在溜冰板的面向连续弦的一侧,以便当环形链被驱动通过时能够将环形链条围绕在球形球的暴露表面上。 相应的闭环路径,由此所述夹具在所述溜冰鞋的强迫下朝向所述连续弦行进,所述擒纵机构在所述溜冰鞋的球形球之上。

    Foldable continuous rod guide and a jib for servicing rig for supporting same

    公开(公告)号:US10597957B2

    公开(公告)日:2020-03-24

    申请号:US15709817

    申请日:2017-09-20

    IPC分类号: E21B19/22

    摘要: An foldable guide for a continuous rod injector features first and second segments of similar length and a shorter third segment. In a fully folded state of the guide, the shorter third segment is foldable into a position contained between facing-together concave sides of the first and segments for improved collapse of the guide into a compact state for storage or transport. A proximal end of the first segment is mounted to the injector, which is carried on a mast having a selectively deployable jib thereon at an elevation above the installed position of the injector. The jib is movable between a slant-mode condition reaching outward from the mast and a vertical-mode position retracted into a more compact relation with the mast. The slant-mode condition provides improved support and stability by providing a more direct overhead support for the rod guide in slant well applications.

    Gripping dies for continuous coiled rod injectors and fabrication and use methods relating to same
    9.
    发明授权
    Gripping dies for continuous coiled rod injectors and fabrication and use methods relating to same 有权
    用于连续盘管杆注射器的夹持模具以及与之相关的制造和使用方法

    公开(公告)号:US09371706B2

    公开(公告)日:2016-06-21

    申请号:US13785420

    申请日:2013-03-05

    IPC分类号: E21B19/22 B66D3/00

    摘要: Gripper dies for a continuous coiled rod injector are machined from a single, unitary, integral steel body forming both the base portion for connection to the injector drive chain and the gripping portion for engagement of the continuous coiled rod. Curved transitions are provided between ends of a gripping portion of the die and a profiled gripping face thereof, which features an arcuate surface and diverging planar surfaces extending therefrom to accommodate varying sizes of round and elliptical rod.

    摘要翻译: 用于连续卷绕棒式注射器的夹爪模具由单一的整体式钢体加工而成,其形成用于连接到喷射器驱动链的基部和用于连续盘绕杆接合的夹持部分。 在模具的夹持部分的端部和其成型夹持面之间提供弯曲的过渡部,其特征在于具有弓形表面和从其延伸的发散的平坦表面以适应不同尺寸的圆形和椭圆形的杆。

    Gripping Dies for Continuous Coiled Rod Injectors and Fabrication and Use Methods Relating to Same
    10.
    发明申请
    Gripping Dies for Continuous Coiled Rod Injectors and Fabrication and Use Methods Relating to Same 有权
    连续盘式注射器的夹持模具和与之相关的制造和使用方法

    公开(公告)号:US20140251637A1

    公开(公告)日:2014-09-11

    申请号:US13785420

    申请日:2013-03-05

    IPC分类号: E21B19/22 B23P13/00

    摘要: Gripper dies for a continuous coiled rod injector are machined from a single, unitary, integral steel body forming both the base portion for connection to the injector drive chain and the gripping portion for engagement of the continuous coiled rod. Lower skate pressure is required relative to conventional aluminum dies, increasing the lifespan of injector components while providing improved performance and avoiding damage to the coiled rod by use of alternating grooves and ridges in the gripping face of the die and smoothly radiused transitions the ends thereof.

    摘要翻译: 用于连续卷绕棒式注射器的夹爪模具由单一的整体式钢体加工而成,其形成用于连接到喷射器驱动链的基部和用于连续盘绕杆接合的夹持部分。 相对于传统的铝模具需要较低的滑冰压力,从而提高喷射器部件的使用寿命,同时提供改进的性能,并且通过使用模具的夹持面中的交替的凹槽和凸脊来避免对螺旋杆的损坏,并且平滑地向外延伸。