公开(公告)号：US5944099A

公开(公告)日：1999-08-31

申请号：US823821

申请日：1997-03-25

申请人： Alexander Sas-Jaworsky

发明人： Alexander Sas-Jaworsky

IPC分类号： E21B19/22 ,  E21B33/068 ,  E21B33/08

CPC分类号： E21B33/068 ,  E21B19/22 ,  E21B33/08

摘要： In the use of composite materials for a coiled tubing for downhole use, precise external tubular dimension and durable wear surface become a critical factor because of the potential for damage to the external surface as the tubing passes through the stripper assembly at the wellhead which is provided to control high pressures within the well. An infuser arranged within the stripper provides lubrication for the passage of the composite tubing through the sealing members within the stripper and also infuses fluids into microfissures and cracks naturally occurring on the surface of the composite tubing to fill the voids and thereby enhance the structural integrity of the tubing.

摘要翻译： 在使用用于井下使用的连续油管的复合材料时，精确的外部管状尺寸和耐用磨损表面成为关键因素，因为当管道通过提供的井口处的汽提器组件时，可能损坏外表面 以控制井内的高压。 布置在汽提器内的输液器为复合管通过汽提器内的密封构件提供润滑，并且还将流体输入到复合管道表面天然存在的微裂缝和裂缝中以填充空隙，从而增强了结构完整性 管道。

公开(公告)号：US5848643A

公开(公告)日：1998-12-15

申请号：US770719

申请日：1996-12-19

申请人： William L. Carbaugh ,  Sylvester A. Joan

发明人： William L. Carbaugh ,  Sylvester A. Joan

IPC分类号： E21B33/08 ,  E21B33/06

CPC分类号： E21B33/085

摘要： A rotating blowout preventer is disclosed that provides the rotating spindle assembly with lugs that are moved downwardly through vertical slots in the preventer housing then horizontally into horizontal grooves in the housing to lock the rotating spindle assembly to the housing and that move horizontally out of the horizontal grooves and upwardly through vertical slots to release the rotary spindle assembly from the housing for making a connection or a trip.

摘要翻译： 公开了一种旋转防喷器，其向旋转主轴组件提供凸耳，该凸耳向下移动通过防水壳体中的垂直槽，然后水平地移动到壳体中的水平凹槽中，以将旋转主轴组件锁定到壳体并且水平地移出水平 槽和向上通过垂直槽以将旋转主轴组件从壳体释放以进行连接或跳闸。

公开(公告)号：US5791411A

公开(公告)日：1998-08-11

申请号：US617151

申请日：1996-03-18

申请人： Dale Ricalton ,  Raymond Rivard

发明人： Dale Ricalton ,  Raymond Rivard

IPC分类号： E21B33/08 ,  E21B33/03

CPC分类号： E21B33/085

摘要： A tubular mandrel is provided as a sleeve around the portion of the rod string polish rod extending through the stuffing box housing. The mandrel is coupled to the polish rod so that they rotate together. Bearings stabilize the mandrel within the housing. Stationary rotary seal means are provided in the housing to seal against the now-stabilized mandrel. Leakage and seal wear are improved when compared with the prior art approach of using compressed packing in direct contact with the polish rod to provide the rotary seal.

摘要翻译： 围绕延伸穿过填料函箱壳体的杆串抛光棒的部分设置有套筒作为套筒。 心轴连接到抛光棒，使它们一起旋转。 轴承将心轴固定在外壳内。 固定的旋转密封装置设置在壳体中以密封现在稳定的心轴。 与使用压缩填料直接与抛光棒接触以提供旋转密封件的现有技术方法相比，泄漏和密封件磨损得到改善。

公开(公告)号：US5647444A

公开(公告)日：1997-07-15

申请号：US697427

申请日：1996-08-23

申请人： John R. Williams

发明人： John R. Williams

IPC分类号： E21B33/08 ,  E21B33/06

CPC分类号： E21B33/085

摘要： A rotating blowout preventor having at least two rotating stripper rubber seals which provide a continuous seal about a drilling string having drilling string components of varying diameter. A stationary bowl is designed to support a blowout preventor bearing assembly and receives a swivel ball that cooperates with the bowl to self-align the blowout preventor bearing assembly and the swivel ball with respect to the fixed bowl. Chilled water is circulated through the seal boxes of the blowout preventor bearing assembly and liquid such as water is pumped into the bearing assembly annulus between the stripper rubbers to offset well pressure on the stripper rubbers. Lubricant is pumped into shaft bearings and serves to prolong the life of shaft. pressure seals by offsetting well pressure against the shaft pressure seals and clamp mechanisms are used to tighten the stripper rubbers on the respective mounting elements in the bearing assembly and swivel ball. A method for sealing a drilling string at the surface of a well, which method includes the steps of mounting a rotating blowout preventor having at least two sealing stripper rubbers on the well casing or other equipment connected to the well casing, in swiveling relationship, inserting a drilling string through the rotating blowout preventor and stripper rubbers, introducing a liquid into the rotating blowout preventor, circulating water around certain pressure seals and application of hydraulic pressure on the stripper rubbers and pressure seals to offset well pressure exerted against the stripper rubbers and pressure seals.

摘要翻译： 具有至少两个旋转剥离橡胶密封件的旋转防喷器，其提供围绕具有不同直径的钻柱组件的钻柱的连续密封。 固定碗被设计成支撑防喷器轴承组件，并且接收与碗配合的旋转球，以使防喷器轴承组件和旋转球相对于固定碗自对准。 冷冻水通过防喷器轴承组件的密封箱循环，液体如水被泵送到汽提橡胶之间的轴承组件环中，以抵消剥离橡胶上的井压力。 润滑剂被泵入轴轴承，用于延长轴的使用寿命。 用于通过抵抗轴压力密封件和夹紧机构的良好压力的压力密封件来紧固在轴承组件和旋转球中的相应安装元件上的剥离橡胶。 一种用于在井的表面处密封钻柱的方法，该方法包括以下步骤：将具有至少两个密封剥离橡胶的旋转防喷器安装在井套管或连接到井套管的其它设备中，以旋转关系插入 通过旋转防喷器和剥离橡胶的钻柱，将液体引入旋转的防喷器，围绕某些压力密封循环水，并在剥离橡胶和压力密封上施加液压以抵消施加在剥离橡胶上的井压力和压力 海豹

公开(公告)号：US5639227A

公开(公告)日：1997-06-17

申请号：US555316

申请日：1995-11-08

申请人： Robert A. R. Mills

发明人： Robert A. R. Mills

IPC分类号： E21B33/08 ,  F04B35/04

CPC分类号： E21B33/085

摘要： A leakproof seal arrangement is disclosed for use in the drivehead of a downhole rotary pump, which pump is operated by a drive string suspended from the drivehead for rotation in a production tubing about a longitudinal axis, the drivehead having a bore in fluid communication and coaxial with the production tubing and sized to permit the passage of a polished rod attached to a top end of the drive string. The seal arrangement includes a centralizer sleeve for receiving a portion of the polished rod; a bearing for rotatably supporting the centralizer sleeve in the drivehead coaxial with the bore, whereby an annular gap is created between the centralizer sleeve and an opposite, cylindrical wall of the drivehead which gap is in fluid communication with the production tubing. The seal arrangement further includes a centering packing for sealingly and concentrically connecting the centralizer sleeve with the polished rod for simultaneous rotation about the longitudinal axis. The centering packing is sufficiently elastic to accommodate wobble of the polished rod in the centralizer sleeve while preventing leakage of a pumped liquid present in the production tubing and the centralizer sleeve during operation of the pump. The seal arrangement also includes an annular drivehead seal for sealing the annular gap which is also filled with the pumped liquid during operation of the pump, to substantially prevent leakage of the pumped liquid from the drivehead. With this seal arrangement, polished rod wobble compensation and sliding sealing of the drivehead are carried out at separate locations in the drivehead which results in a more reliable seal and reduced stress on the seal materials used and provides the seal with an extended service period.

摘要翻译： 泄漏密封装置被公开用于井下旋转泵的驱动头中，该泵由驱动头悬挂的驱动柱来操作，用于围绕纵向轴线在生产管道中旋转，驱动头具有流体连通的孔和同轴的 与生产管道并且尺寸允许通过连接到驱动串的顶端的抛光杆。 密封装置包括用于容纳抛光棒的一部分的扶正器套筒; 用于可旋转地支撑在与孔同轴的驱动头中的扶正器套筒的轴承，由此在对中的套筒与驱动头的相对的圆柱形壁之间产生环形间隙，该间隙与生产管道流体连通。 密封装置还包括用于密封地并且同心地连接扶正器套筒和抛光杆的定心衬套，用于围绕纵向轴线同时旋转。 定心包装具有足够的弹性，以适应抛光杆在扶正器套筒中的摆动，同时防止泵的操作过程中存在于生产管道和扶正器套筒中的泵送液体的泄漏。 密封装置还包括用于密封环形间隙的环形驱动头密封件，其在泵的操作期间也填充有泵送的液体，以基本上防止泵送的液体从驱动头泄漏。 通过这种密封装置，驱动头的抛光杆摆动补偿和滑动密封在驱动头中的不同位置进行，这导致更可靠的密封和减少所使用的密封材料上的应力，并在延长的使用期限内提供密封。

公开(公告)号：US5566753A

公开(公告)日：1996-10-22

申请号：US474393

申请日：1995-06-07

申请人： D. Wayne Van Winkle ,  Bobby G. Hurst

发明人： D. Wayne Van Winkle ,  Bobby G. Hurst

IPC分类号： E21B33/06 ,  E21B33/068 ,  E21B33/08 ,  E21B33/02

CPC分类号： E21B33/062 ,  E21B33/068 ,  E21B33/08

摘要： A stripper/packer for use in a stack at a well head provides horizontal actuation and side access. This configuration enables maintenance of the packer in place. It also provides for the retraction of the packer to a diameter greater than the inside diameter of the packer to permit the withdrawal of coiled tubing with accessories attached. A hydraulically actuated rod has a pusher plate attached at one end with bushings and bushing carriers attached thereto. The bushings and bushing carriers hold a packer element in abutting relation to an energizer which evenly distributes pressure from the pusher plate to the packer element. The bushings and bushing carriers also hold the packer element so that, upon retraction of the rod, the entire assembly is withdrawn from the bore of the stripper/packer.

摘要翻译： 在井口的堆叠中使用的剥离器/打包器提供水平致动和侧面通道。 这种配置使得能够将封隔器维护在适当位置。 它还提供了将封隔器缩回到直径大于封隔器内径的直径，以允许连接附件的连续油管的抽出。 液压驱动杆具有一端连接有推动板，衬套和衬套承载件连接在其上。 衬套和衬套托架将封隔器元件保持在与激励器相邻的关系中，该激发器将压力从推板平均分配到封隔器元件。 衬套和衬套托架还保持封隔器元件，使得当杆退回时，整个组件从剥离器/封隔器的孔中取出。

公开(公告)号：US5540283A

公开(公告)日：1996-07-30

申请号：US406429

申请日：1995-03-20

申请人： Warren J. Hahn

发明人： Warren J. Hahn

IPC分类号： E21B33/08 ,  E21B43/12 ,  F04B53/16 ,  F16J3/04

CPC分类号： F04B53/164 ,  E21B33/08 ,  E21B43/127 ,  F16J3/046

摘要： A method and apparatus for protecting a polished rod of a pumping unit so that the portion of the polished rod that passes out of the top of a stuffing box of a wellhead on the upstroke of the polished rod is protected from the environment surrounding the wellhead. The method and apparatus also assist with containment of well fluids which may escape from the stuffing box.

摘要翻译： 一种用于保护泵送单元的抛光棒的方法和装置，使得抛光棒的从抛光棒上行程上的井口填料函顶部出来的部分免受围绕井口的环境的影响。 该方法和装置还有助于容纳可能从填料函中逸出的井液。

公开(公告)号：US5401104A

公开(公告)日：1995-03-28

申请号：US181244

申请日：1994-01-13

申请人： Hille Newton

发明人： Hille Newton

IPC分类号： E21B19/24 ,  E21B33/08 ,  F16C33/76 ,  F16C33/74

CPC分类号： F16C33/76 ,  E21B19/24 ,  E21B33/08 ,  E21B33/085

摘要： A rod guide assembly for rotary applications has a stationary housing and a rotating housing. The stationary housing has an exterior, an interior, a first end and a second end. A primary stationary annular bushing is positioned in the interior at the first end of the stationary housing. The primary bushing has an interior bore. A bearing is provided having an outer race, and an inner race with an inner circumference. The outer race of the bearing is non-rotatably fixed to the stationary housing. A secondary annular rod guide is positioned in the interior at the second end of the stationary housing. Annular packing is disposed within the interior of the stationary housing to provide a fluid seal. The cylindrical rotating housing has an exterior, an interior, a first end and a second end. The exterior has a neck portion adjacent the second end. The neck is adapted to engage the inner circumference of the inner race of the bearing disposed at the first end of the stationary housing. The inner race of the bearing rotates with the rotating housing. Annular packing is disposed within the interior of the rotating housing to provide a fluid seal.

摘要翻译： 用于旋转应用的杆导向组件具有固定壳体和旋转壳体。 固定壳体具有外部，内部，第一端和第二端。 主固定环形衬套位于固定壳体的第一端的内部。 主衬套具有内孔。 提供具有外圈的轴承和具有内圆周的内圈。 轴承的外圈不可转动地固定在固定的外壳上。 第二环形杆导向件位于固定壳体的第二端的内部。 环形填料设置在固定壳体的内部以提供流体密封。 圆柱形旋转壳体具有外部，内部，第一端和第二端。 外部具有与第二端相邻的颈部。 颈部适于接合设置在固定壳体的第一端处的轴承的内圈的内周。 轴承的内圈与旋转的外壳一起旋转。 环形填料设置在旋转壳体的内部以提供流体密封。

公开(公告)号：US5377748A

公开(公告)日：1995-01-03

申请号：US126070

申请日：1993-09-23

申请人： Gilbert A. Gayaut

发明人： Gilbert A. Gayaut

IPC分类号： E21B33/08

CPC分类号： E21B21/01 ,  E21B33/08

摘要： A spill preventing device for use on a tubular portion of a well head is provided. The device has at least two sections forming an open-topped container with a bottom, the container being of a size to receive spills around the well. The container sections have a central opening in the bottom of the container of a size to fit around a tubular portion of a well head. An upstanding centrally located cylindrical flange is provided to fit around the tubular member. The flange is formed with upwardly extending walls from the container sections, which are releasably connected together to form the flange. A splash suppression assembly is positioned in the open-topped container to prevent liquid from splashing out. The splash suppression assembly has a plurality of rings mounted above the bottom of the container. The rings are concentrically positioned about the central cylindrical flange.

摘要翻译： 提供了一种用于井口管状部分的溢出防止装置。 该装置具有形成具有底部的敞开顶部容器的至少两个部分，该容器具有接近于井周围的溢出物的尺寸。 容器部分具有容器底部的中心开口，其尺寸适合于井口的管状部分周围。 提供了一个直立的中心位置的圆柱形凸缘以配合在管状构件周围。 凸缘由容器部分形成有向上延伸的壁，它们可释放地连接在一起以形成凸缘。 防溅组件位于敞开的容器中，以防止液体溅出。 防溅组件具有安装在容器底部上方的多个环。 环围绕中心圆柱形凸缘同心定位。

公开(公告)号：US5348107A

公开(公告)日：1994-09-20

申请号：US23499

申请日：1993-02-26

申请人： Thomas F. Bailey ,  Larry F. Moeller ,  John E. Campbell

发明人： Thomas F. Bailey ,  Larry F. Moeller ,  John E. Campbell

IPC分类号： E21B33/08 ,  F16J15/48 ,  E21B19/08

CPC分类号： E21B33/085 ,  F16J15/48

摘要： A system for maintaining an optimum pressure balance within an inner chamber of a drilling head for improved seal life and integrity. The system maintains a pressure differential across the seals thereby preventing well fluids from contaminating the seals and improving their useful life. The drive ring of a drilling head is rotatably supported by a series of bearings disposed within a bearing chamber. The secondary chamber of the drilling head is sealed to prevent contaminants from entering the chamber and fouling the seals. The seals withstand the borehole well pressures to prevent the introduction of contaminants, by maintaining a pressure differential across the seals. The present system compensates for variations in the borehole pressure. A pressure compensator is in communication with the borehole to activate a lubricant pump for increasing lubricant pressure within the inner chamber in response to increased borehole pressures. A relief valve associated with the inner chamber relieves pressure in the seal chamber to maintain lubricant pressure at optimum levels when borehole pressure decreases for controlled operation of the seals. Additional check valves are included in the inner chamber to control the chamber pressure while preventing contamination of the lubricant.

摘要翻译： 一种用于在钻头的内腔内保持最佳压力平衡的系统，以提高密封寿命和完整性。 该系统保持两个密封件之间的压力差，从而防止井液体污染密封件并提高其使用寿命。 钻头的驱动环由设置在轴承室内的一系列轴承可旋转地支撑。 钻头的二次腔被密封以防止污染物进入腔室并污染密封件。 通过保持密封件两端的压力差，密封件能承受井眼井压力以防止污染物的引入。 本系统补偿井眼压力的变化。 压力补偿器与钻孔连通，以响应于增加的井眼压力来启动润滑剂泵，以增加内腔内的润滑剂压力。 与内室相关联的安全阀可减轻密封室中的压力，以便在密封件受控操作时，当井眼压力降低时，将润滑剂压力保持在最佳水平。 在内腔中包括附加止回阀以控制室压力，同时防止润滑剂的污染。