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    • 5. 发明授权
    • High pressure valve assembly
    • 高压阀门总成
    • US09519292B2
    • 2016-12-13
    • US14201474
    • 2014-03-07
    • Senior IP GmbH
    • Robert M ThornePeter A JordanPatrick B Reed
    • F04F1/08G05D16/06E21B43/12
    • G05D16/0616E21B43/123Y10T137/7836
    • A valve assembly for high pressure applications includes a pre-charge chamber, at least one inlet for pressurized gas to enter the assembly, a system poppet and an outlet for releasing pressurized gas into a desired environment. Pressurized gas can flow through access channels into a single bellows, which expands to move a shaft connected to the system poppet to open the poppet. In another embodiment, the pre-charge chamber compresses a first bellows to expand a second bellows, and vice versa upon reciprocation. The two bellows are hydraulically connected and filled with incompressible fluid. Each bellows has an internal limiting valve to retain incompressible fluid therewithin, and to preclude the complete nesting of either of the bellows. The retained fluid within the bellows maintains an internal pressure to minimize differential pressure, thereby minimizing the risk of bellows failure.
    • 用于高压应用的阀组件包括预充气室,用于加压气体进入组件的至少一个入口,用于将加压气体释放到期望环境中的系统提升阀和出口。 加压气体可以通过进入通道流入单个波纹管,其膨胀以移动连接到系统提升阀的轴以打开提升阀。 在另一个实施例中,预充气室压缩第一波纹管以膨胀第二波纹管,反之亦然。 两个波纹管液压连接并充满不可压缩流体。 每个波纹管都具有内部限制阀,以在其中保持不可压缩的流体,并且排除波纹管中任一个的完全嵌套。 波纹管内的保留流体保持内部压力以最小化压差,从而最小化波纹管故障的风险。
    • 7. 发明授权
    • Gas operated pump for hydrocarbon wells
    • 用于油气井的气动泵
    • US06973973B2
    • 2005-12-13
    • US10349501
    • 2003-01-22
    • William F. HowardWilliam C. Lane
    • William F. HowardWilliam C. Lane
    • E21B43/12E21B43/24F04F1/08E21B43/16
    • E21B43/2406E21B43/129F04F1/08
    • The present invention generally relates to an apparatus and method for improving production from a wellbore. In one aspect, a downhole pump for use in a wellbore is provided. The downhole pump includes two or more chambers for the accumulation of formation fluids and a valve assembly for filling and venting gas to and from the two or more chambers. The downhole pump further includes a fluid passageway for connecting the two or more chambers to a production tube. In another aspect, a downhole pump including a chamber for the accumulation of formation fluids is provided. In another aspect, a method for improving production in a wellbore is provided. In yet another aspect, a method for improving production in a steam assisted gravity drainage operation is provided. Additionally, a pump system for use in a wellbore is provided.
    • 本发明一般涉及一种用于改善从井眼产生的装置和方法。 在一个方面,提供了一种用于井眼的井下泵。 井下泵包括用于积存地层流体的两个或更多个腔室和用于向两个或更多个腔室填充和排出气体的阀组件。 井下泵还包括用于将两个或更多个室连接到生产管的流体通道。 在另一方面,提供了一种包括用于堆积地层流体的室的井下泵。 在另一方面,提供了一种用于改善井眼中的生产的方法。 在另一方面,提供了一种用于改善蒸汽辅助重力排水操作中的生产的方法。 另外,提供了用于井眼的泵系统。
    • 8. 发明授权
    • Pneumatic pump having radial ball check valve array
    • 气动泵具有径向球止回阀阵列
    • US5971715A
    • 1999-10-26
    • US846022
    • 1997-04-25
    • Michael K. Breslin
    • Michael K. Breslin
    • F04B53/10F04F1/08F04F1/06
    • F04B53/1015F04F1/08Y10T137/7839
    • In a pneumatic pump of the float actuated variety, a radial check valve array is utilized for minimizing the trigger point of the pump relative to the bottom of the leachate and/or groundwater table. The pump includes a fluid-tight casing from which fluid to be pumped can be discharged to an outflow conduit such as a well casing. An outflow conduit extends from a outflow conduit inlet at the bottom inside of the fluid-tight casing to a pumped fluid discharge--such as a well casing--exterior of the casing. An actuating float is disposed within the pump casing and is moveable over a distance responsive to liquid level within the casing from a first lower position adjacent the bottom of the casing to a second upper position for actuating an air inlet to discharge air into the casing. An air inlet check valve is provided having an inlet for communication to a source of air under pressure exterior of the pump casing and an outlet to the interior of the pump casing. Inlet of fluid to be pumped to the interior of the pump casing from the exterior of the pump occurs through the radial check valve array. The array functions to surround the outflow conduit of the pump to enable the outflow conduit and check valve array to overlap, reducing the minimum trigger depth of the pump.
    • 在浮子致动品种的气动泵中,使用径向止回阀阵列来使泵的触发点相对于渗滤液和/或地下水台的底部最小化。 该泵包括一个流体密封的外壳,待泵送的流体可从该外壳排出到诸如井套管的流出管道。 流出管道从流体密封的壳体的底部内部的流出管道入口延伸到泵送的流体排放物 - 诸如井套管 - 外壳的外部。 致动浮子设置在泵壳体内,并且能够响应于壳体内的液面从邻近壳体底部的第一下部位置到第二上部位置移动一定距离,用于致动空气入口以将空气排放到壳体中。 一个进气单向阀设有一个入口,用于与在泵壳体的外部压力下的空气源连通,以及一个到泵壳内部的出口。 从泵外部泵送到泵壳内部的流体通过径向止回阀阵列进入。 该阵列用于围绕泵的流出管道以使流出管道和止回阀阵列重叠,从而减小泵的最小触发深度。
    • 9. 发明授权
    • Nozzle-venturi gas lift flow control device and method for improving
production rate, lift efficiency, and stability of gas lift wells
    • 喷气文丘里气举流量控制装置及提升井升井效率及稳定性的方法
    • US5707214A
    • 1998-01-13
    • US723169
    • 1996-09-27
    • Zelimir Schmidt
    • Zelimir Schmidt
    • E21B43/12F04F1/08E21B21/00
    • E21B43/123
    • A gas flow control device for injecting gas into a production string for recovering pressure and reducing frictional losses, so that critical flow can be reached at lower pressure drops and higher production pressure, includes a nozzle having first and second ends, and a flow path therebetween, and a Venturi having first and second ends, and a flow path therebetween. The first end of the Venturi portion is disposed adjacent to the second end of the nozzle. The Venturi flow path coaxially aligned with the nozzle flow path to provide a continuous flow path through the valve. A method to increase the production rate, improve the lift efficiency, and eliminate or suppress instability in continuous-flow gas lift wells by use of a flow control device that has a gas flow rate performance that is independent of the tubing pressure even when the tubing pressure is as high as 80% to 93% of the casing pressure.
    • 一种用于将气体注入用于回收压力并减少摩擦损失的生产线中的气体流量控制装置,使得可以在较低的压降和较高的生产压力下达到临界流量,包括具有第一和第二端的喷嘴及其间的流动路径 和具有第一和第二端的文氏管以及它们之间的流路。 文丘里部分的第一端设置成与喷嘴的第二端相邻。 文丘里流动路径与喷嘴流动路径同轴对准以提供通过该阀的连续流动路径。 一种通过使用具有独立于管道压力的气体流速性能的流量控制装置来提高生产率,提高提升效率以及消除或抑制连续流动气举井中的不稳定性,即使当管 压力高达套管压力的80%至93%。