公开(公告)号：US4754812A

公开(公告)日：1988-07-05

申请号：US28742

申请日：1987-03-23

申请人： Mark Gentry

发明人： Mark Gentry

IPC分类号： E21B33/122 ,  E21B33/1295 ,  E21B23/00

CPC分类号： E21B33/122 ,  E21B33/1295

摘要： A packer, preferably utilized for dual string operations, comprising a plurality of axially stacked body elements including, from the bottom up, a hydraulic housing, a lower cone element, an annular slip cage containing radially expansible slip elements, an upper cone element, a lower packing expander, an expandable packing element, an upper packing expander, a receptacle, and a retainer plate. All of said elements are provided with two bores equal in diameter to that of the tubing string to be run which extend entirely through the axial stack. One bore accomodates a long string mandrel and the other bore accomodates a short string mandrel conventionally connected to a short tubing string. The short string mandrel is connected at one end to the hydraulic housing and at the other end to the receptacle housing. Fluid pressure is applied to concurrently effect the downward movement of the hydraulic housing and the upward movement of the lower cone to set the packer into engagement with the conduit wall. The packer is secured in set position by one or more locking rods detachably secured to the retainer plate and extending through the axially stacked assemblage to a unidirectional ratcheting connection with the lower cone element.

摘要翻译： 封隔器，优选用于双串操作，包括多个轴向堆叠的主体元件，其包括从下向上的液压壳体，下锥体元件，包含径向可膨胀滑动元件的环形滑动槽，上锥体元件， 下包装膨胀机，可膨胀包装元件，上包装膨胀机，容器和保持板。 所有所述元件设置有两个直径等于待运行的管柱的孔，其完全延伸穿过轴向堆叠。 一个孔容纳长串心轴，另一个孔容纳通常连接到短管柱的短串心轴。 短列心轴在一端连接到液压壳体，另一端连接到插座壳体。 施加流体压力以同时影响液压壳体的向下运动和下锥体的向上运动，以将封隔器设置成与导管壁接合。 封隔器通过一个或多个锁定杆固定在固定位置，该锁定杆可拆卸地固定到保持器板并且延伸穿过轴向堆叠的组合件到与下锥形元件的单向棘轮连接。

公开(公告)号：US4730835A

公开(公告)日：1988-03-15

申请号：US912253

申请日：1986-09-29

申请人： Raymond K. Wilcox ,  Gary L. Harris

发明人： Raymond K. Wilcox ,  Gary L. Harris

IPC分类号： E21B33/12 ,  F16J15/16 ,  F16J15/28 ,  E21B33/128

CPC分类号： F16J15/166 ,  E21B33/1216

摘要： A sealing assembly for effecting the sealing of an annulus between two telescopically related tubular conduits, of the type employed in subterranean wells, is achieved by utilizing annular seal backup elements dieformed from a knitted wire mesh by two successive dieforming steps. In the first dieforming, the knitted mesh backup element is formed to an external diameter equal to or preferably exceeding the maximum diameter that will be required for the backup member to assume when expanded into engagement with the outer wall of the annulus to be sealed. The second dieforming operation reduces the external diameter of the annular knitted mesh seal backup element to a dimension less than the outer wall of the annulus to be sealed, thus permitting convenient assembly and run-in of the sealing assemblage. The two step dieforming operation significantly reduces the amount of axial compressive force required to expand the sealing elements and the seal backup members to their sealed position.

摘要翻译： 通过利用通过两个连续的压制步骤从针织丝网压制的环形密封备用元件，实现了用于在地下井中使用的类型的两个可伸缩相关的管状管道之间的环空密封的密封组件。 在第一次模压成形中，针织网状支撑元件形成为等于或优选地超过当膨胀成与要密封的环空的外壁接合时支撑构件所需的最大直径的外径。 第二次成型操作将环形针织网状密封件支撑元件的外径减小到小于要密封的环形空间的外壁的尺寸，从而允许密封组合件的方便的组装和导入。 两步压模操作显着地减少了将密封元件和密封件支撑件膨胀到其密封位置所需的轴向压缩力的量。

公开(公告)号：US4722400A

公开(公告)日：1988-02-02

申请号：US862137

申请日：1986-05-12

申请人： Robert E. Burns

发明人： Robert E. Burns

IPC分类号： E21B34/12

CPC分类号： E21B34/12

摘要： An injection tool for use in injecting fluids into perforations of a production formation of an oil or gas well is mechanically set in the bore of the casing traversing the production formation, and mechanically releasable therefrom so that chemical treatment fluid can be injected between upper and lower packing elements into a single or a selected vertical group of perforations. The injection tool is connected to the tubing string by a circulation valve operable by rotational movement of the tubing string. Injection of the chemical fluid treatment is accomplished with the circulation valve in the closed position, while the circulation valve is opened to equalize tubing and annulus pressure whenever required.

摘要翻译： 用于将流体注入油井或气井的生产地层的穿孔中的注射工具机械地设置在穿过生产地层的套管的孔中，并且可机械地从其中释放，使得化学处理流体可以在上下之间注射 将元件包装成单个或选定的垂直穿孔组。 注射工具通过可由管柱的旋转运动操作的循环阀连接到油管柱。 化学流体处理的注入是通过循环阀在关闭位置进行的，同时循环阀打开以在需要时均衡管道和环形压力。

公开(公告)号：US4709758A

公开(公告)日：1987-12-01

申请号：US806030

申请日：1985-12-06

申请人： Dan C. Preston, Jr.

发明人： Dan C. Preston, Jr.

IPC分类号： E21B33/12 ,  E21B33/129 ,  F16J15/20 ,  E21B33/128

CPC分类号： F16J15/20 ,  E21B33/1208 ,  E21B33/1292

摘要： A packer for effecting steam treatment of a production formation of a subterranean well comprises an insulated mandrel which is slidably inserted within the bore of an inner tubular body assembly. An outer operative tubular assembly surrounds the inner assembly and mounts a plurality of drag blocks, upper and lower cone elements, a plurality of radially displaceable slips cooperating with the upper and lower cone elements, and an outer packing element fabricated by an assemblage of high temperature resistant, non-resilient seal elements formed primarily of graphite. An inner packing element is provided in the inner tubular body assembly, utilizing additional high temperature resistant, non-resilient seal elements formed primarily of graphite, which sealingly engages the insulated mandrel. The packer is set by rotation of the tubing string to position a J-pin in the axially elongated portion of a J-slot, followed by upward movement of the tubing string to effect compression of the external packing element to form a seal with the casing wall and concurrently, expansion of the slips by the upper and lower cones. A ratcheting element mounted in the same ring as the J-pin traps the axial forces within the packing element and the interengaged cones and slips.

摘要翻译： 用于对地下井的生产地层进行蒸汽处理的封隔器包括可滑动地插入内部管状主体组件的孔内的绝缘心轴。 外部操作管状组件围绕内部组件并且安装多个阻力块，上部和下部锥形元件，与上部和下部锥形元件配合的多个可径向移动的滑块以及由高温组合制成的外部填充元件 主要由石墨形成的耐磨，无弹性的密封元件。 内部包装元件设置在内部管状本体组件中，利用主要由石墨形成的附加的耐高温，非弹性的密封元件，密封地与绝缘心轴接合。 封隔器通过管柱的旋转来设定，以将J形销定位在J型槽的轴向细长部分中，随后是管柱的向上运动，以实现外部填料元件的压缩以与壳体形成密封 壁和同时，由上下锥的膨胀。 安装在与J形针相同的环中的棘轮元件捕获填料元件内的轴向力和相互啮合的锥体和滑动件。

公开(公告)号：US4708208A

公开(公告)日：1987-11-24

申请号：US877421

申请日：1986-06-23

申请人： Floyd A. Halbardier

发明人： Floyd A. Halbardier

IPC分类号： E21B23/06 ,  E21B33/127 ,  E21B33/13

CPC分类号： E21B23/06 ,  E21B33/127

摘要： Methods and apparatus are provided for retrieving an inflatable packer of a type which may be passed through a small diameter tubing, seal against a relatively large diameter casing by passing fluid to the packer through a remedial tubing, and then be retrieved to the surface through the small diameter tubing. If the downhole equipment assembly becomes hung up during retrieval, fluid may be passed through the remedial tubing to release an upper portion of the packer actuator assembly from a lower portion of the packer actuator assembly. The released upper portion and remedial tubing may then be retrieved to the surface, and a conventional fishing tool utilized to subsequently retrieve the lower portion and the packer.

摘要翻译： 提供了用于回收可以通过小直径管道的类型的可充气封隔器的方法和装置，通过将流体通过补救管道将密封剂传递到封隔器，从而密封相对较大直径的套管，然后通过 小直径管。 如果在检索期间井下设备组件被挂起，则流体可以通过补救管道以从封隔器致动器组件的下部释放封隔器致动器组件的上部。 然后将释放的上部和补救管道取回到表面，以及用于随后取回下部分和封隔器的常规捕捞工具。

公开(公告)号：US4667737A

公开(公告)日：1987-05-26

申请号：US861553

申请日：1986-05-09

申请人： James G. Shaw ,  John H. Shore

发明人： James G. Shaw ,  John H. Shore

IPC分类号： E21B4/00 ,  F16J15/00 ,  E21B41/00 ,  F16J15/40 ,  F16J15/54

CPC分类号： E21B4/003 ,  F16J15/004

摘要： A sealing apparatus having particular utility in a submersible electric motor utilized in subterranean wells comprises a tubular housing assembly securable in upwardly projecting, sealed relationship to the motor housing. An extension of the motor shaft projects upwardly through the tubular housing to drive a pump or other subterranean well tool. The upper end of the extension shaft is exposed to well fluids and a first shaft seal is mounted in a seal mounting chamber defined in the upper end of the tubular housing assemblage. Below the seal mounting chamber, the tubular housing assemblage defines a diaphragm chamber. A conduit is provided between the lower portions of the seal mounting chamber and the lower portions of the diaphragm chamber. A flexible, annular diaphragm divides the diaphragm chamber and is exposed on its exterior to well fluids, and on its interior to a light density motor protective fluid, thus equalizing any pressure differential between the motor protective fluid and the external well fluids. The diaphragm chamber is connected at its upper end to a downwardly extending axial passage surrounding the motor shaft and communicating with the interior of the motor housing.

摘要翻译： 在用于地下井的潜水电动马达中具有特殊用途的密封装置包括可与电机壳体向上突出的密封关系固定的管状壳体组件。 电动机轴的延伸部向上突出通过管状壳体以驱动泵或其它地下井工具。 延伸轴的上端暴露于井液，第一轴密封件安装在限定在管状壳体组件的上端的密封安装室中。 在密封安装室下面，管状壳体组件限定隔膜室。 在密封安装室的下部和隔膜室的下部之间设置导管。 柔性的环形隔膜将隔膜室分隔开，并将其暴露在其外部的井液中，并在其内部暴露于轻密度马达保护流体，从而均衡马达保护流体和外部井液之间的任何压力差。 隔膜室在其上端连接到围绕电动机轴的向下延伸的轴向通道并与电动机壳体的内部连通。

公开(公告)号：US4612985A

公开(公告)日：1986-09-23

申请号：US758406

申请日：1985-07-24

申请人： Richard P. Rubbo ,  David M. Haugen

发明人： Richard P. Rubbo ,  David M. Haugen

IPC分类号： E21B17/06 ,  E21B33/12

CPC分类号： E21B17/06 ,  E21B33/12

摘要： A method and apparatus for inserting a seal stack in a seal bore defined by a well tool located downhole where ambient conditions would cause radial swelling of the seal stack. The seal stack is mounted at the surface in a confined space defined between a mandrel and a constraining sleeve shearably connected to the mandrel. Upon run-in of the mandrel to enter the seal bore, the constraining sleeve engages an upwardly facing surface surrounding the entrance to the seal bore which prevents further downward movement of the constraining sleeve. Application of a downward force effects the shearing of the connection between the mandrel and the constraining sleeve and permits the mandrel and seal stack to be inserted in the seal bore while the constraining sleeve moves upwardly relative to the mandrel.

摘要翻译： 一种用于将密封堆叠插入密封孔的方法和装置，所述密封孔由位于井下的井工具限定，其中环境条件将引起密封堆的径向膨胀。 密封堆叠被安装在限定在心轴和可剪切地连接到心轴的约束套管之间的限制空间中的表面处。 当心轴进入密封孔时，约束套筒接合围绕密封孔的入口的向上表面，防止约束套管进一步向下运动。 施加向下的力影响了心轴和约束套管之间的连接的剪切，并且允许心轴和密封组件被插入到密封孔中，而约束套筒相对于心轴向上移动。

公开(公告)号：US4605063A

公开(公告)日：1986-08-12

申请号：US609327

申请日：1984-05-11

申请人： Richard J. Ross

发明人： Richard J. Ross

IPC分类号： E21B17/10 ,  E21B23/01 ,  E21B23/00

CPC分类号： E21B23/01 ,  E21B17/1035

摘要： An anchoring apparatus for securing a production tubing string against axial movement in a subterranean well is disclosed. The anchoring apparatus can be employed with a conventional sucker rod pumping apparatus transporting fluids through the production tubing. A separate injection line is attached to the exterior of the production tubing and treating fluids are injected therethrough. A conduit which can be connected to the separate injection line extends along the exterior of the inner body of the anchoring apparatus in an axially extending groove and extends through encircling anchoring slips which are expanded by rotational movement of the production tubing and of the body of the anchoring apparatus.

摘要翻译： 公开了一种用于固定生产油管柱以防止地下井中的轴向移动的锚定装置。 锚定装置可以用传统的抽油杆泵送装置来运输流体通过生产管道。 单独的注射管线连接到生产管道的外部，并且处理流体通过其注入。 可以连接到单独的注入管线的管道沿着锚定装置的内部主体的外部沿着轴向延伸的凹槽延伸并且延伸穿过环绕的锚固滑动件，该锚定滑动件通过生产管道和主体的旋转运动而膨胀 锚定装置

公开(公告)号：US4576236A

公开(公告)日：1986-03-18

申请号：US608900

申请日：1984-05-10

申请人： Gregg W. Stout ,  John A. Nelson ,  John H. Crisp

发明人： Gregg W. Stout ,  John A. Nelson ,  John H. Crisp

IPC分类号： E21B23/02 ,  E21B33/12 ,  E21B43/116

CPC分类号： E21B33/12 ,  E21B23/02 ,  E21B43/116

摘要： A method and apparatus for effecting the sealing of a well conduit comprises the positioning of a sealing plug unit within a special nipple provided in the well conduit and defining first and second surfaces and a seal bore. The sealing plug unit is provided with external seal elements cooperable with the seal bore and a first and second latching elements respectively cooperable with the first and second surfaces provided on the nipple. The sealing plug is actuated by first passing it downwardly through the nipple and then retracting it upwardly, whereupon the first of the latching elements engages with one of the surfaces on the nipple, thus preventing further upward movement on the assembly and permitting the application of a tensile force to release the plugging unit from the remainder of the unit to bring a camming sleeve into engagement with the second latching element to cam such element outwardly into engagement with an upper recess of the nipple. The sealing plug unit may be removed from the nipple through the application of applied force which effects the release of the camming sleeve holding latch elements in their locked position, thus permitting the sealing plug unit to be forced through the special nipple and discarded into the bottom of the well.

摘要翻译： 用于实现井管道密封的方法和装置包括将密封塞单元定位在设置在井管道中的特殊接头中并限定第一和第二表面以及密封孔。 密封塞单元设置有与密封孔配合的外部密封元件和分别与设置在乳头上的第一和第二表面配合的第一和第二闩锁元件。 首先将密封塞向下通过乳头，然后向上缩回密封塞，由此第一个闩锁元件与乳头上的一个表面接合，从而防止组件上的进一步的向上移动并允许施加一个 张紧力以将堵塞单元从单元的其余部分释放，以使凸轮套与第二闭锁元件接合，从而将该元件向外凸出以与乳头的上凹部接合。 密封塞单元可以通过施加施加的力而从乳头上移除，其施加凸轮套筒将闩锁元件释放在其锁定位置，从而允许密封塞单元被迫通过特殊的接头并被丢弃到底部 的井。

公开(公告)号：US4557331A

公开(公告)日：1985-12-10

申请号：US551764

申请日：1983-11-14

申请人： Gregg W. Stout

发明人： Gregg W. Stout

IPC分类号： E21B34/06 ,  E21B34/14 ,  E21B43/116 ,  E21B43/1185 ,  E21B34/08 ,  E21B43/11

CPC分类号： E21B34/14 ,  E21B34/063 ,  E21B43/116 ,  E21B43/11855

摘要： A method and apparatus for effecting the perforation of a well casing and the adjoining production formation comprises a tubular housing communicating between a perforating gun housing and the lower end of a tubular string. The perforating gun housing which is adapted to be carriable by the tubular string contains an impact actuated firing head and the tubular housing contains a port normally closed by sleeve valve. The valve is biased towards an open position but is selectively secured in its closed position by a frangible restraining mechanism which extends into the free fall path of a detonating bar dropped through the tubular tool string and is removed by the detonating bar to initiate the opening of the port sleeve valve prior to impacting the firing head. In a modification, the sleeve valve is shifted to its open position by fluid pressure produced in the casing annulus subsequent to the firing of the perforating gun.

摘要翻译： 用于实现井套管穿孔的方法和装置以及相邻的生产装置包括在穿孔枪壳体和管状柱体的下端之间连通的管状壳体。 适于由管状支柱支撑的穿孔枪壳包含冲击致动的击发头，并且管状壳体包含通过套筒阀常闭的端口。 阀被朝向打开位置偏置，但是通过易碎的限制机构选择性地固定在其关闭位置，所述限制机构延伸到通过管状工具串下降的引爆杆的自由下落路径中，并被引爆杆移除以启动 在冲击头之前的端口套筒阀。 在一个变型中，套筒阀在射孔枪射击之后通过套管环中产生的流体压力移动到其打开位置。