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31. 发明授权

US4474380A Inflatable packer assembly with control valve 失效
标题翻译：带控制阀的充气封隔器组件
公开(公告)号：US4474380A
公开(公告)日：1984-10-02
申请号：US433564
申请日：1982-10-08
申请人： Ernest E. Carter, Jr.
发明人： Ernest E. Carter, Jr.
IPC分类号： E21B33/127 , E21B33/12
CPC分类号： E21B33/127 , Y10T137/1677
摘要： An inflatable packer assembly includes a cylindrical mandrel with a cylindrical valve body concentrically disposed about the mandrel. The valve body includes an inlet communicating with an interior of the mandrel and an outlet for directing fluid to an inflatable element of the packer assembly. First and second axial bores, containing first and second pistons, respectively, are disposed in said valve body and communicate with an end surface thereof. The first bore also communicates with said inlet. A first port connects the first and second bores. A second port connects the second bore and the outlet. The first piston which includes a check valve is held in a first position blocking said first port until a pressure differential across the first piston reaches a first level at which the first piston is released and is moved to a second position allowing fluid communication between the inlet and the first port. The second piston is held in a first position allowing fluid communication between said first and second ports until a pressure differential across said second piston which senses the packer element inflation pressure reaches a second level, higher than said first level, at which said second piston is released and is moved to a second position blocking said second port. At this time the check valve of the first piston is actuated blocking said first port. A check valve disposed about the packer mandrel also prevents fluid flow from said inflated packer element.
摘要翻译：充气封隔器组件包括圆柱形心轴，其具有围绕心轴同心设置的圆柱形阀体。阀体包括与心轴的内部连通的入口和用于将流体引导到封隔器组件的可充气元件的出口。分别包含第一和第二活塞的第一和第二轴向孔设置在所述阀体中并与其端表面连通。第一孔还与所述入口连通。第一口连接第一和第二孔。第二个端口连接第二个孔和出口。包括止回阀的第一活塞被保持在阻挡所述第一端口的第一位置，直到跨过第一活塞的压力差达到第一水平，在第一水平处第一活塞被释放并且移动到第二位置，从而允许入口和第一个港口。第二活塞被保持在第一位置，允许所述第一和第二端口之间的流体连通，直到穿过所述第二活塞的感测封隔器元件充气压力的压差达到高于所述第二水平的第二水平，释放并移动到阻挡所述第二端口的第二位置。此时，第一活塞的止回阀被致动阻止所述第一端口。设置在封隔器心轴周围的止回阀还防止流体从所述膨胀的封隔器元件流出。

32. 发明授权

US4361165A Breakaway pipe coupling with automatically closed valves 失效
标题翻译：断路管接头与自动关闭阀
公开(公告)号：US4361165A
公开(公告)日：1982-11-30
申请号：US176080
申请日：1980-08-07
申请人： John F. Flory
发明人： John F. Flory
IPC分类号： F16K17/40 , F16L55/10
CPC分类号： F16K17/40 , E21B17/06 , E21B43/0107 , F16L55/1007 , Y10S285/90 , Y10T137/1662 , Y10T137/1677 , Y10T137/1774 , Y10T137/87941
摘要： A breakaway pipeline coupling is described which comprises first and second pipe sections forming a fluid seal and designed to separate at a predetermined axial load. A plurality of piston and cylinder pressure compensating devices are arranged around the exterior of the pipe sections to hold them together until separation.Shear pins or shear studs passing between the pipeline sections will fail when the coupling is subjected to an external tensile force exceeding the predetermined maximum force. The pressure compensating devices apply a compression load on the coupling to counteract the tension load exerted by internal pressure in the pipeline. The pressure compensating devices included pistons movable axially within cylinders in response to pressure differentials, and porting or tubing for exposing one side of the piston to the internal pressure within the coupling.When internal pressure produces a force which tends to separate the coupling, an opposing compressive force resulting from the pressure acting on the pistons tends to hold the coupling together. External tensile force tending to separate the coupling are resisted by the shear pins, but when a predetermined maximum external tensile force is exceeded, the shear pins fail and the pipeline sections separate.A first, normally closed valve is located within the first pipeline section, and a second, normally closed valve, or a valve lock pin, is located in the second pipeline section. When the pipeline sections are joined together, the valve(s) is locked in the open position and fluid can flow freely through the coupling and the pipeline in which the coupling is assembled. As the sections move relative to one another, each valve is shut to that the contents of the pipeline are not discharged into the environment.
摘要翻译：描述了一种分流管道联接器，其包括形成流体密封件并被设计成在预定轴向载荷下分离的第一和第二管段。多个活塞和气缸压力补偿装置围绕管部分的外部布置以将它们保持在一起直到分离。当联轴器经受超过预定最大力的外部张力时，在管道部分之间通过的剪切销或剪力柱将失效。压力补偿装置对联轴器施加压缩载荷以抵消由管道中的内部压力施加的张力负荷。压力补偿装置包括响应于压差而在气缸内轴向移动的活塞，以及用于将活塞的一侧暴露于联接器内的内部压力的移动或管道。当内部压力产生趋向于分离联接器的力时，由作用在活塞上的压力产生的相反的压缩力趋于将联接器保持在一起。倾向于分离联轴器的外部张力受到剪切销的抵抗，但是当超过预定的最大外力拉力时，剪切销失效，管道部分分开。第一个常闭阀位于第一管道段内，第二个常闭阀或一个阀锁销位于第二管道段中。当管道部分连接在一起时，阀被锁定在打开位置，并且流体可以自由地流过联接器和联接器组装在其中的管道。当这些部分相对于彼此移动时，每个阀关闭，使得管道的内容物不会排放到环境中。

33. 发明授权

US4114694A No-shock pressure plug apparatus 失效
标题翻译：无冲击压塞装置
公开(公告)号：US4114694A
公开(公告)日：1978-09-19
申请号：US797328
申请日：1977-05-16
申请人： Robert W. Dinning
发明人： Robert W. Dinning
IPC分类号： E21B34/14 , E21B23/06
CPC分类号： E21B34/14 , Y10T137/1677 , Y10T137/86807
摘要： Disclosed is releasable plugging apparatus for selectively closing a tubular member to permit fluid pressure buildup therein. When the fluid pressure is then decreased, a sealing device of the apparatus may be released, and the tubular member subsequently opened. Holding apparatus secures the sealing device in place until a compressed spring is permitted to move a piston so as to permit the holding apparatus to release the sealing device. A locking device prevents such movement by the piston until the pressure buildup first moves the piston in the opposite direction to release the locking device and to further compress the spring. The tubular member is thus not unplugged until the fluid pressure is decreased, thereby avoiding a large pressure pulse which might result if the sealing device were released with the fluid pressure at a high value. The embodiments described are particularly applicable for use with hydraulically-operated well tools, such as well packers. The present invention plugs the tubing string supporting the tool to allow hydraulic pressure aplication to operate the tool, and then unplugs the tubing string upon decrease of such hydraulic pressure rather than requiring a further increase of hydraulic pressure to force the plugging apparatus open.
摘要翻译：公开了一种可释放的堵塞装置，用于选择性地关闭管状构件以允许其中形成流体压力。当流体压力随之降低时，该装置的密封装置可以被释放，然后管状构件打开。保持装置将密封装置固定就位，直到允许压缩弹簧移动活塞以允许保持装置释放密封装置。锁定装置防止活塞的这种移动，直到压力累积首先沿相反方向移动活塞以释放锁定装置并进一步压缩弹簧。因此，直到流体压力降低，管状构件才被拔出，从而避免了如果在流体压力高的情况下将密封装置释放可能导致的大的压力脉冲。所描述的实施例特别适用于液压操作的井工具，例如井封包装机。本发明堵塞支撑工具的管柱，以允许液压施加操作工具，然后在降低这种液压压力时拔掉油管柱而不需要进一步增加液压以迫使堵塞装置打开。

34. 发明授权

US3885627A Wellbore safety valve 失效
标题翻译：井筒安全阀
公开(公告)号：US3885627A
公开(公告)日：1975-05-27
申请号：US36589273
申请日：1973-06-01
申请人： SUN OIL CO
发明人： BERRY HOLLAND J , LEWIS DAVID W
IPC分类号： E21B34/08 , E21B34/16 , E21B43/12
CPC分类号： E21B34/08 , E21B34/16 , Y10T137/1632 , Y10T137/1677
摘要： A wellbore safety valve system includes a plug held by a retention spider, a plug seat separated from and located above the plug, and a controlled release section for separating the spider from the plug so that the plug can engage the plug seat. The controlled release section may be responsive to electrical energy from the surface, flow rate in the well, or acoustical energy.
摘要翻译：井眼安全阀系统包括由保持蜘蛛保持的塞子，从插头上分离并位于插头上方的塞座，以及用于将蜘蛛与插头分离的控制释放部分，使得插头可以与插头座接合。控制释放部分可以响应于来自表面的电能，井中的流速或声能。

35. 发明授权

US3759281A Cementing float shoe 失效
标题翻译： CEMENTING FLOAT SHOE
公开(公告)号：US3759281A
公开(公告)日：1973-09-18
申请号：US3759281D
申请日：1971-11-19
申请人： GRUPUL IND PENTRU FORAJ SI EXT
发明人： FALCUTA P
IPC分类号： F16K17/40
CPC分类号： F16K17/40 , Y10T137/1677 , Y10T137/7436 , Y10T137/7873
摘要： A float valve for a well casing comprises a fixed ring or seat threaded onto the wall of a generally cylindrical shell and receiving a tubular boss to which the ball cage is threaded. The cylindrical boss and the cage are anchored on the shoe casing by a plurality of shear pins so that they may be dislodged by the application of downward over-pressure in the event the valve becomes plugged. A fluted ring is provided beyond the aforementioned fixed ring to intercept the boss and thereby retain the valve while permitting fluid circulation through the flutes.

36. 发明授权

US3051246A Automatic fluid fill apparatus for subsurface conduit strings 失效
标题翻译：用于地下管道管道的自动流体填充装置
公开(公告)号：US3051246A
公开(公告)日：1962-08-28
申请号：US80597559
申请日：1959-04-13
申请人： BAKER OIL TOOLS INC
发明人： CLARK JR EARNEST H , KEITHAHN JULIAN D
IPC分类号： E21B21/10
CPC分类号： E21B21/10 , Y10T137/1677 , Y10T137/7856 , Y10T137/8803

37. 发明授权

US2945678A Bottom hole drilling fluid control valve 失效
标题翻译：井下钻孔液控制阀
公开(公告)号：US2945678A
公开(公告)日：1960-07-19
申请号：US64158757
申请日：1957-02-21
申请人： PHILLIPS PETROLEUM CO
发明人： BOUDREAUX GEORGE S , BOBO ROY A
IPC分类号： E21B21/10
CPC分类号： E21B21/10 , Y10T137/1677 , Y10T137/7839

38. 发明授权

US2848053A Back pressure valve 失效
公开(公告)号：US2848053A
公开(公告)日：1958-08-19
申请号：US59290056
申请日：1956-06-21
申请人： PHILLIPS PETROLEUM CO
发明人： CURRY JOHN L
IPC分类号： E21B21/10
CPC分类号： E21B21/10 , Y10T137/1677

39. 发明授权

US2713870A Apparatus for automatically filling well casing 失效
标题翻译：自动灌装套管的装置
公开(公告)号：US2713870A
公开(公告)日：1955-07-26
申请号：US33478453
申请日：1953-02-03
申请人： BAKER OIL TOOLS INC
发明人： BAKER REUBEN C
IPC分类号： E21B21/10
CPC分类号： E21B21/10 , Y10T137/1677

40. 发明授权

US09255646B2 Excess flow shutoff valve 有权
标题翻译：过流截流阀
公开(公告)号：US09255646B2
公开(公告)日：2016-02-09
申请号：US13930474
申请日：2013-06-28
申请人： AIR PRODUCTS AND CHEMICALS INC.
发明人： Micah S. Kiffer , Stephen Clyde Tentarelli
IPC分类号： F16K17/22 , F16K17/40 , F16K17/28
CPC分类号： F16K17/406 , F16K17/22 , F16K17/28 , Y10T137/1624 , Y10T137/1677 , Y10T137/7782 , Y10T137/7785
摘要： Excess flow shutoff valve comprising a valve body, a valve plug, a partition, and an activation component where the valve plug, the partition, and activation component are disposed within the valve body. A suitable flow restriction is provided to create a pressure difference between the upstream end of the valve plug and the downstream end of the valve plug when fluid flows through the valve body. The pressure difference exceeds a target pressure difference needed to activate the activation component when fluid flow through the valve body is higher than a desired rate, and thereby closes the valve.
摘要翻译：过流量截止阀包括阀体，阀塞，分隔件和活塞部件，其中阀塞，分隔件和激活部件设置在阀体内。提供合适的流动限制以在流体流过阀体时在阀塞的上游端和阀塞的下游端之间产生压力差。当流过阀体的流体高于期望的速率时，压力差超过激活激活部件所需的目标压力差，从而关闭阀门。

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