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    Controlled downhole chemical injection
    2.
    发明授权
    Controlled downhole chemical injection 失效
    控制井下化学注入

    公开(公告)号：US06981553B2

    公开(公告)日：2006-01-03

    申请号：US10220372

    申请日：2001-03-02

    申请人： George Leo Stegemeier ,  Harold J. Vinegar ,  Robert Rex Burnett ,  William Mountjoy Savage ,  Frederick Gordon Carl, Jr. ,  John Michele Hirsch

    发明人： George Leo Stegemeier ,  Harold J. Vinegar ,  Robert Rex Burnett ,  William Mountjoy Savage ,  Frederick Gordon Carl, Jr. ,  John Michele Hirsch

    IPC分类号： E21B43/00

    CPC分类号： E21B47/122 ,  E21B17/003 ,  E21B34/066 ,  E21B34/08 ,  E21B34/16 ,  E21B37/06 ,  E21B41/02 ,  E21B43/123 ,  E21B43/14 ,  E21B47/12

    摘要： A petroleum well having a well casing, a production tubing, a source of time-varying current, a downhole chemical injection device, and a downhole induction choke. The casing extends within a wellbore of the well. The tubing extends within the casing. The current source is located at the surface. The current source is electrically connected to, and adapted to output a time-varying current into, the tubing and/or the casing, which act as electrical conductors for providing downhole power and/or communications. The injection device having a communications and control module, a chemical container, and an electrically controllable chemical injector. The communications and control module is electrically connected to the tubing and/or the casing. The chemical injector is electrically connected to the communications and control module, and is in fluid communication with the chemical container. The downhole induction choke is located about a portion of the tubing and/or the casing. The chemical injector is electrically connected to the communications and control module, and is in fluid communication with the chemical container. The downhole induction choke is located about a portion of the tubing and/or the casing. The induction choke is adapted to route part of the electrical current through the communications and control module by creating a voltage potential between one side of the induction choke and another side of the induction choke. The communications and control module is electrically connected across the voltage potential. Also, a method is provided for controllably injecting a chemical into the well downhole, which may be used to: improve lift efficiency with a foaming agent, prevent deposition of solids with a paraffin solvent, improve a flow characteristic of the flow stream with a surfactant, prevent corrosion with a corrosion inhibitor, and/or prevent scaling with scale preventers.

    摘要翻译： 具有井套管，生产管道，时变电流源，井下化学注入装置和井下感应扼流圈的石油井。 套管在井的井筒内延伸。 管道在套管内延伸。 电流源位于表面。 电流源电连接到并且适于将时变电流输出到用作提供井下功率和/或通信的电导体的管道和/或壳体中。 注射装置具有通信和控制模块，化学容器和电可控化学注射器。 通信和控制模块电连接到管道和/或壳体。 化学注射器电连接到通信和控制模块，并且与化学容器流体连通。 井下感应扼流圈位于管和/或壳体的一部分周围。 化学注射器电连接到通信和控制模块，并且与化学容器流体连通。 井下感应扼流圈位于管和/或壳体的一部分周围。 感应扼流圈适于通过在感应扼流圈的一侧和感应扼流圈的另一侧之间产生电压而将部分电流通过通信和控制模块。 通信和控制模块跨越电压电位电连接。 此外，提供了一种用于可控地将化学品注入井下孔的方法，其可用于：利用发泡剂提高提升效率，防止固体与石蜡溶剂沉积，用表面活性剂改善流动流的流动特性 ，防止腐蚀抑制剂腐蚀，和/或防止防垢剂结垢。

    Use of downhole high pressure gas in a gas-lift well and associated methods
    8.
    发明授权
    Use of downhole high pressure gas in a gas-lift well and associated methods 有权
    在气井中使用井下高压气体及相关方法

    公开(公告)号：US07147059B2

    公开(公告)日：2006-12-12

    申请号：US10220249

    申请日：2001-03-02

    申请人： John M. Hirsch ,  George Leo Stegemeier ,  James William Hall ,  Harold J. Vinegar ,  Robert Rex Burnett ,  William Mountjoy Savage ,  Frederick Gordon Carl, Jr.

    发明人： John M. Hirsch ,  George Leo Stegemeier ,  James William Hall ,  Harold J. Vinegar ,  Robert Rex Burnett ,  William Mountjoy Savage ,  Frederick Gordon Carl, Jr.

    IPC分类号： E21B43/12 ,  E21B43/14 ,  E21B43/00

    CPC分类号： E21B47/122 ,  E21B17/003 ,  E21B33/1294 ,  E21B34/066 ,  E21B34/08 ,  E21B34/16 ,  E21B43/122 ,  E21B43/123 ,  E21B43/14 ,  E21B47/12

    摘要： A gas-lift petroleum well and method for producing petroleum products using downhole pressurized gas to provide lift. The gas-lift well having a well casing, a production tubing, a packer, and a gas-lift valve. The well casing extends within a wellbore of the well, and the wellbore extends through oil and gas zones. The production tubing extends within the casing. The tubing having an opening formed therein, which is in fluid communication with an oil zone. The packer is located downhole in the casing and coupled to the tubing. The packer can have an electrically controllable packer valve, which is adapted to control a flow of downhole pressurized gas from one side of the packer to another. The downhole pressurized gas is provided by a gas zone that the wellbore passes through. The downhole gas-lift valve is coupled to the tubing and is adapted to control a flow of downhole pressurized gas into oil in the tubing for lifting the oil. The gas-lift valve can be an electrically controllable valve. The tubing and casing are used as electrical conductors for supplying power and/or communications downhole. The current in the tubing is routed using a ferromagnetic induction choke to create a voltage potential, which provides electrical power to downhole electrical devices. Also, there may be a bypass passageway to route downhole gas to gas-lift valves. There may also be downhole sensors to measure physical quantities (e.g., pressure). Such measurements can be used for feedback control of downhole electrically controllable valves.

    摘要翻译： 一种气举石油井及使用井下加压气体生产石油产品的方法，以提供电梯。 气井具有井套管，生产管道，封隔器和气举阀。 井套管在井的井筒内延伸，井筒延伸穿过油气区域。 生产管道在套管内延伸。 管道具有形成在其中的开口，其与油区流体连通。 封隔器位于套管的井下，并与管道相连。 封隔器可以具有可电控制的封隔器阀，其适于控制从封隔器的一侧到另一侧的井下加压气体的流动。 井下加压气体由井筒通过的气体区域提供。 井下气体提升阀联接到管道，并适于控制井下加压气体流入管道中的油以提升油。 气举阀可以是电控阀。 管道和套管用作用于在井下供电和/或通信的电导体。 管道中的电流使用铁磁感应扼流圈布线，以产生电压电位，这为井下电气设备提供电力。 此外，可能有旁路通道将井下气体路由到气举阀。 还可以有井下传感器来测量物理量（例如压力）。 这种测量可用于井下电控阀的反馈控制。

    Measuring focused through-casing resistivity using induction chokes and also using well casing as the formation contact electrodes
    9.
    发明授权
    Measuring focused through-casing resistivity using induction chokes and also using well casing as the formation contact electrodes 有权

    公开(公告)号：US06633164B2

    公开(公告)日：2003-10-14

    申请号：US09798192

    申请日：2001-03-02

    申请人： Harold J. Vinegar ,  Robert Rex Burnett ,  William Mountjoy Savage ,  Frederick Gordon Carl, Jr. ,  John Michele Hirsch ,  Peter Anthony Crossley

    发明人： Harold J. Vinegar ,  Robert Rex Burnett ,  William Mountjoy Savage ,  Frederick Gordon Carl, Jr. ,  John Michele Hirsch ,  Peter Anthony Crossley

    IPC分类号： G01V318

    CPC分类号： E21B47/122 ,  E21B17/003 ,  E21B34/066 ,  E21B34/08 ,  E21B34/16 ,  E21B43/122 ,  E21B43/123 ,  E21B43/14 ,  E21B2041/0028 ,  G01V3/20

    摘要： A petroleum well (20) for producing petroleum products that incorporates a system adapted to controllably measure a formation resistivity using induction chokes (91-95) to form electrically isolated piping structure sections that can be used as the formation contact electrodes for time-varying current, and methods of producing petroleum products while measuring formation resistivity, are provided by the present invention. The system comprises a first induction choke (91), a second induction choke (92), and a device (50). The first induction choke (91) is located about a piping structure (30) of the well (20). The second induction choke (92) is also located about the piping structure (30) of the well (20), but the first induction choke (91) is distally spaced from the second induction choke (92). The device (50) is located outside of the piping structure (30) and comprises two terminals (71, 72). A first of the terminals (71) extending from the device (50) is electrically connected to the piping structure (30) on one side (81) of the first induction choke (91). A second of the terminals (72) extending from the device (50) is electrically connected to the piping structure (30) on another side (82) of the first induction choke (91), between the first and second induction chokes (91, 92), such that the downhole device (50) is electrically connected across an outside of the first induction choke (91). The system can further comprise other induction chokes (93-95), other terminals (97-99) extending from the device (50), a current sensor (114), a surface power source (54), a power transformer (104), a communications transformer (106), a surface modem (56), a downhole modem (102), a direct current power supply (101), and/or a power amplifier (110, 112). The piping structure can comprise at least a portion of a well casing (30), such that the well casing (30) acts as an electrode for making formation resistivity measurements due to the induction chokes (91-95).

    Power generation using batteries with reconfigurable discharge
    10.
    发明授权
    Power generation using batteries with reconfigurable discharge 失效
    使用具有可重新配置放电的电池的发电

    公开(公告)号：US07075454B2

    公开(公告)日：2006-07-11

    申请号：US10220253

    申请日：2001-03-02

    申请人： John Michele Hirsch ,  Harold J. Vinegar ,  Robert Rex Burnett ,  William Mountjoy Savage ,  Frederick Gordon Carl, Jr.

    发明人： John Michele Hirsch ,  Harold J. Vinegar ,  Robert Rex Burnett ,  William Mountjoy Savage ,  Frederick Gordon Carl, Jr.

    IPC分类号： G01V13/02

    CPC分类号： E21B47/122 ,  E21B17/003 ,  E21B17/028 ,  E21B34/066 ,  E21B34/08 ,  E21B34/16 ,  E21B41/0085 ,  E21B43/123 ,  E21B43/14

    摘要： A petroleum well for producing petroleum products that incorporates a system adapted to provide power to a downhole device in the well. The system includes a current impedance device and a downhole power storage device. The current impedance device is positioned such that when a time-varying electrical current is transmitted through the portion of a piping structure and/or a voltage potential forms between one side of the current impedance device and another side of the current impedance device. The device is adapted to be electrically connected to the piping structure and/or across the voltage potential formed by the current impedance device, is adapted to be recharged by the electrical current, and is adapted to be electrically connected to the downhole device to provide power to the downhole device as needed.

    摘要翻译： 用于生产石油产品的石油井，其结合了适于向井中的井下装置提供动力的系统。 该系统包括电流阻抗装置和井下蓄电装置。 电流阻抗器件被定位成使得当电流阻抗器件的一侧与电流阻抗器件的另一侧之间形成时变电流通过管道结构的部分和/或电压电势时。 该装置适于电连接到管道结构和/或跨过由电流阻抗装置形成的电压电势，适于由电流再次充电，并且适于电连接到井下装置以提供功率 根据需要到井下装置。