Method and system for introducing electric current into a well
    2.
    发明授权
    Method and system for introducing electric current into a well 失效
    将电流引入井的方法和系统

    公开(公告)号:US4716960A

    公开(公告)日:1988-01-05

    申请号:US884963

    申请日:1986-07-14

    摘要: An invention for supplying power to a well. In one embodiment power heats a tubing from adjacent the surface to a selected level to prevent the formation of solids. The tubing is heated by passing an electric current therethrough. In one form the tubing is insulated from the wellhead and the casing down to a selected level where an electrical connection is made between the tubing and casing. Current is applied to the tubing at a point below an insulating tubing collar. In another form an insulated conduit is run into the well to a selected depth and connected to the tubing. Electrical power is connected to the tubing and to the insulated conduit.In another form a sucker rod is electrically insulated from the tubing down to a selected depth. The sucker rod includes a non-conducting section such as a fiberglas sucker rod. A conduit is run through the fiberglas rod and connected to the steel sucker rod therebelow.Also disclosed is a system for preventing formation of solids in a petroleum well by suspending a loop of wire in a well and passing a controlled amount of power along said loop of wire to heat the wire in which the loop of wire has sections of different resistance to apply different amounts of heat at different depths of the well. Further, there is disclosed an electromagnet for use as a contact between a wire and a well tubing and/or as an anchor.

    摘要翻译: 用于向井供电的发明。 在一个实施例中,功率将管道从邻近的表面加热到选定的水平以防止固体的形成。 通过使电流通过其来加热管道。 在一种形式中,管道与井口和套管隔离到选定的水平,在管道和套管之间形成电气连接。 电流在绝缘油管套管下方的一点处施加到管道上。 在另一种形式中,绝缘管道进入井中至选定的深度并连接到管道。 电力连接到管道和绝缘导管。 在另一种形式中,抽油杆与油管电绝缘至选定的深度。 抽油杆包括非导电部分,例如纤维浆抽油杆。 导管穿过玻璃钢棒并连接到下面的钢吸盘。 还公开了一种用于防止在石油井中形成固体的系统,该方法是通过将一环的线悬挂在井中并沿着所述线路通过受控量的动力来加热其中所述线的环具有不同电阻的部分的导线 在井的不同深度应用不同量的热量。 此外,公开了一种电磁铁,用作线和井管之间的接触和/或作为锚。

    Well heater
    3.
    发明授权
    Well heater 失效
    加热器好

    公开(公告)号:US4678034A

    公开(公告)日:1987-07-07

    申请号:US867338

    申请日:1986-05-23

    IPC分类号: E21B36/04 E21B36/00

    CPC分类号: E21B36/04

    摘要: The tubing of a cased petroleum well is heated for any purpose such as to prevent deposition of solids by coupling a microwave source to the well annulus at the surface and transmitting the waves down the annulus.Special coupling means is provided to couple at the annulus to accommodate the arbitrary positions of naturally occurring microwaves in the annulus of the well.

    摘要翻译: 加热套管石油井的管道用于任何目的,例如通过将微波源耦合到表面处的井环并将波浪传播到环形空间来防止固体沉积。 提供特殊耦合装置以耦合在环空处以适应井的环空中天然存在的微波的任意位置。

    Backflush filter system for downhole pumps
    4.
    发明授权
    Backflush filter system for downhole pumps 失效
    井下泵倒冲过滤系统

    公开(公告)号:US5494109A

    公开(公告)日:1996-02-27

    申请号:US375463

    申请日:1995-01-19

    摘要: A well rod pump having a filter system to remove particulate material from the fluids produced from the well and an automatic back flush system using pumped fluid to flush particulate material from the filter system in response to increased pressure differential across the filter system, including a rod moved by a piston to open the valves of the pump, and a time delay connected to continue to hold the valves open for a period sufficient to allow back flushed particles to settle in the well. Well treatment chemicals may be injected into the well with the back flushing fluid.

    摘要翻译: 一种井杆泵,其具有用于从井中产生的流体中除去颗粒材料的过滤系统和使用泵送流体的自动反冲洗系统,以响应于跨越过滤系统的增加的压差而从过滤系统冲洗颗粒材料,包括杆 通过活塞移动以打开泵的阀门,并且延时连接以继续保持阀门打开足够的时间以允许反冲洗的颗粒沉降在井中。 井后处理化学品可能会与后冲洗液一起注入井中。

    Fuel cell stack assembly
    5.
    发明授权
    Fuel cell stack assembly 失效
    燃料电池堆组件

    公开(公告)号:US07005209B1

    公开(公告)日:2006-02-28

    申请号:US10264578

    申请日:2002-10-04

    IPC分类号: H01M2/18 H01M8/10

    摘要: Disclosed herein is a novel fuel cell stack assembly. In one embodiment, the stacks of the present invention comprise: a first and a second end plate; a plurality of fuel cells interposed between the first and second end plates, at least one of the fuel cells having a unitized MEA assembly and/or a compound flow field; a means to separate neighboring fuel cell components; and a compression means.

    摘要翻译: 这里公开了一种新型燃料电池堆组件。 在一个实施例中,本发明的堆叠包括:第一和第二端板; 介于所述第一和第二端板之间的多个燃料电池,所述燃料电池中的至少一个具有组合的MEA组件和/或复合流场; 分离相邻燃料电池组件的手段; 和压缩装置。

    Unitized MEA assemblies and methods for making same
    6.
    发明授权
    Unitized MEA assemblies and methods for making same 失效
    组合MEA组件及其制造方法

    公开(公告)号:US07001687B1

    公开(公告)日:2006-02-21

    申请号:US10265052

    申请日:2002-10-04

    IPC分类号: H01M2/10 H01M2/16

    摘要: The present invention comprises a unitized MEA assembly for use in a fuel cell or a fuel cell stack assembly. In the embodiments of the invention, the MEA is made integral to the frame to reduce certain risks and disadvantages associated with nonstabilized MEAs in fuel cell applications. Specifically disclosed are two preferred embodiments of the unitized MEA assembly of the present invention and methods for making same.

    摘要翻译: 本发明包括用于燃料电池或燃料电池堆组件的单元化MEA组件。 在本发明的实施例中,MEA与框架成一体,以减少与燃料电池应用中的不稳定MEA相关的某些风险和缺点。 具体公开了本发明的单元化MEA组件的两个优选实施例及其制造方法。

    HYDRAULICALLY OPERATED WELLBORE LIQUID LIFT USING CASING GAS AS ENERGY SOURCE
    7.
    发明申请
    HYDRAULICALLY OPERATED WELLBORE LIQUID LIFT USING CASING GAS AS ENERGY SOURCE 审中-公开
    使用气体作为能源的液压操作的井筒液体升降机

    公开(公告)号:US20120247785A1

    公开(公告)日:2012-10-04

    申请号:US13079083

    申请日:2011-04-04

    IPC分类号: E21B43/00

    CPC分类号: E21B43/121

    摘要: A system for lifting liquid from a wellbore includes a turbine selectively coupled to a source of gas flow originating in the wellbore. The turbine is arranged to convert the gas flow directly into rotation of the turbine. An hydraulic pump is rotationally coupled to the turbine. An hydraulic cylinder and piston are arranged to move a sucker rod string disposed in the wellbore. Control valves are provided to selectively apply gas flow to the turbine and hydraulic pressure from the pump to lift the piston and enable lowering thereof by the weight of the sucker rod string. The system further comprises control circuits configured to operate the control valves.

    摘要翻译: 用于从井眼提升液体的系统包括选择性地耦合到源自井筒的气流源的涡轮机。 涡轮机被布置成将气流直接转换成涡轮机的旋转。 液压泵旋转地联接到涡轮机。 液压缸和活塞被布置成移动设置在井筒中的抽油杆串。 提供控制阀以选择性地将气流引导到涡轮机和来自泵的液压,以提升活塞并且能够通过抽油杆杆的重量来降低活塞。 该系统还包括配置成操作控制阀的控制电路。

    Backflush filter system for downhole pumps
    8.
    发明授权
    Backflush filter system for downhole pumps 失效
    井下泵倒冲过滤系统

    公开(公告)号:US5413721A

    公开(公告)日:1995-05-09

    申请号:US100612

    申请日:1993-07-30

    摘要: A filter assembly for filtering particulate matter from well fluids to be pumped by a downhole pump in an oil well including a filter and apparatus to reverse the flow through the filter in response to a pre-selected level of differential pressure across the filter, the apparatus including a check valve which opens to allow fluid to flow through to operate a piston to open a pump valve and allow fluid flow out of the pump.

    摘要翻译: 一种过滤器组件,其用于从井下泵送的井下泵中排出的颗粒物质,该油井井下泵包括过滤器和装置,用于响应于过滤器上的预先设定的压差水平来反向流过过滤器的流体, 包括止回阀,其打开以允许流体流过以操作活塞以打开泵阀并允许流体流出泵。

    Reciprocating rod type downhole pump
    10.
    发明授权
    Reciprocating rod type downhole pump 失效
    往复式井下泵

    公开(公告)号:US4969518A

    公开(公告)日:1990-11-13

    申请号:US463166

    申请日:1990-01-10

    IPC分类号: E21B43/08 E21B43/12 F04B47/02

    摘要: There is disclosed a reciprocating rod type downhole pump for an oil well wherein a filter on the lower end of the barrel of the pump includes a solid body of filtering media having small tortuous passageways connecting its inner and outer sides and decreasing in size from its outer to its inner side.

    摘要翻译: 公开了一种用于油井的往复式杆式井下泵,其中泵的下端上的过滤器包括具有连接其内侧和外侧的小曲折通道的过滤介质的固体本体,并且其尺寸与其外部尺寸相比减小 到它的内侧。