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    Systems and methods for treating a subsurface formation with electrical conductors
    7.
    发明授权
    Systems and methods for treating a subsurface formation with electrical conductors 有权
    用电导体处理地下地层的系统和方法

    公开(公告)号：US08881806B2

    公开(公告)日：2014-11-11

    申请号：US12576825

    申请日：2009-10-09

    申请人： Xueying Xie ,  Oluropo Rufus Ayodele ,  Harold J. Vinegar ,  Christopher Kelvin Harris ,  John Michael Karanikas ,  Chester Ledlie Sandberg ,  Dhruv Arora

    发明人： Xueying Xie ,  Oluropo Rufus Ayodele ,  Harold J. Vinegar ,  Christopher Kelvin Harris ,  John Michael Karanikas ,  Chester Ledlie Sandberg ,  Dhruv Arora

    IPC分类号： E21B43/24 ,  H01C3/00 ,  H05B3/48

    CPC分类号： E21B43/24 ,  E21B43/2401 ,  E21B43/2405 ,  E21B44/02 ,  H01C3/00 ,  H05B3/48 ,  H05B2214/03 ,  Y10T29/49083

    摘要： A system for treating a subsurface formation includes a wellbore at least partially located in a hydrocarbon containing formation. The wellbore includes a substantially vertical portion and at least two substantially horizontal or inclined portions coupled to the vertical portion. A first conductor is at least partially positioned in a first of the two substantially horizontal or inclined portions of the wellbore. At least the first conductor includes electrically conductive material. A power supply electrically excites the electrically conductive materials of the first conductor such that current flows between the electrically conductive materials in the first conductor, through at least a portion of the formation, to a second conductor at least partially positioned in a second of the two substantially horizontal or inclined portions of the wellbore. The current resistively heats at least a portion of the formation between the two substantially horizontally oriented or inclined portions of the wellbore.

    摘要翻译： 用于处理地下地层的系统包括至少部分地位于含烃地层中的井筒。 井筒包括基本垂直的部分和至少两个大致水平或倾斜的部分，其联接到垂直部分。 第一导体至少部分地定位在井筒的两个基本上水平或倾斜的部分中的第一个中。 至少第一导体包括导电材料。 电源电动地激发第一导体的导电材料，使得电流在第一导体中的导电材料之间流过地层的至少一部分，至少部分地定位在第二导体中的第二导体中的第二导体中。 井眼的大致水平或倾斜的部分。 电流电阻地加热井眼的两个基本水平定向或倾斜的部分之间的地层的至少一部分。

    Variable frequency temperature limited heaters
    8.
    发明授权
    Variable frequency temperature limited heaters 失效
    变频温度限制加热器

    公开(公告)号：US07490665B2

    公开(公告)日：2009-02-17

    申请号：US11112863

    申请日：2005-04-22

    申请人： Chester Ledlie Sandberg ,  Harold J. Vinegar ,  Christopher Kelvin Harris

    发明人： Chester Ledlie Sandberg ,  Harold J. Vinegar ,  Christopher Kelvin Harris

    IPC分类号： E21B36/04

    CPC分类号： E21B36/04 ,  E21B43/12 ,  E21B43/122 ,  E21B43/24 ,  E21B43/2401 ,  E21B43/2405 ,  E21B43/38 ,  H05B3/141

    摘要： Certain embodiments provide a heating system configured to heat at least a part of a subsurface formation. The system includes an electrical power supply. A heater section includes one or more electrical conductors electrically coupled to the electrical power supply. The heater section is configured to be placed in an opening in the formation. At least one of the electrical conductors includes ferromagnetic material. The heater section provides a first heat output when time-varying electrical current is applied to the heater section below a selected temperature, and provides a second heat output approximately at and above the selected temperature during use. The second heat output is reduced compared to the first heat output. The system is configured to allow heat to transfer from the heater section to a part of the formation. The system is configured to allow a frequency of the applied time-varying electrical current to be varied.

    摘要翻译： 某些实施例提供了构造成加热地下地层的至少一部分的加热系统。 该系统包括电源。 加热器部分包括电耦合到电源的一个或多个电导体。 加热器部分被配置成放置在地层中的开口中。 电导体中的至少一个包括铁磁材料。 当对加热器部分施加时间变化的电流低于所选择的温度时，加热器部分提供第一热量输出，并且在使用期间提供大约等于或高于选定温度的第二热输出。 与第一热输出相比，第二热输出减少。 该系统构造成允许热量从加热器部分转移到地层的一部分。 该系统被配置为允许施加的时变电流的频率变化。

    Temperature limited heaters with relatively constant current
    9.
    发明授权
    Temperature limited heaters with relatively constant current 有权
    温度限制加热器具有相对恒定的电流

    公开(公告)号：US07481274B2

    公开(公告)日：2009-01-27

    申请号：US11112878

    申请日：2005-04-22

    申请人： Harold J. Vinegar ,  Chester Ledlie Sandberg ,  Christopher Kelvin Harris

    发明人： Harold J. Vinegar ,  Chester Ledlie Sandberg ,  Christopher Kelvin Harris

    IPC分类号： E21B36/04

    CPC分类号： E21B36/04 ,  E21B43/12 ,  E21B43/122 ,  E21B43/24 ,  E21B43/2401 ,  E21B43/2405 ,  E21B43/38 ,  H05B3/141

    摘要： Certain embodiments provide a system configured to heat a subsurface formation. The system includes an electrical power supply. A heater section includes one or more electrical conductors electrically coupled to the electrical power supply. At least one of the electrical conductors includes ferromagnetic material. The heater section provides a first heat output when time-varying electrical current is applied to the heater section below a selected temperature, and a second heat output approximately at and above the selected temperature during use. The second heat output is reduced compared to the first heat output. The system is configured to allow heat to transfer from the heater section to a part of the formation. The electrical power supply is configured to provide a relatively constant amount of time-varying electrical current that remains within about 15% of a selected constant current value when a load of the electrical conductors changes.

    摘要翻译： 某些实施例提供了一种配置成加热地下地层的系统。 该系统包括电源。 加热器部分包括电耦合到电源的一个或多个电导体。 电导体中的至少一个包括铁磁材料。 加热器部分提供当在所选择的温度下将加热器部分施加时变电流时的第一热输出，以及在使用期间大约等于或高于选定温度的第二热输出。 与第一热输出相比，第二热输出减少。 该系统构造成允许热量从加热器部分转移到地层的一部分。 电源被配置为当电导体的负载变化时，提供保持在所选定电流值的约15％内的相对恒定量的时变电流。

    SYSTEMS AND METHODS FOR TREATING A SUBSURFACE FORMATION WITH ELECTRICAL CONDUCTORS
    10.
    发明申请
    SYSTEMS AND METHODS FOR TREATING A SUBSURFACE FORMATION WITH ELECTRICAL CONDUCTORS 有权
    用电导体处理表面形成的系统和方法

    公开(公告)号：US20100147522A1

    公开(公告)日：2010-06-17

    申请号：US12576825

    申请日：2009-10-09

    申请人： Xueying Xie ,  Oluropo Rufus Ayodele ,  Harold J. Vinegar ,  Christopher Kelvin Harris ,  John Michael Karanikas ,  Chester Ledlie Sandberg ,  Dhruv Arora

    发明人： Xueying Xie ,  Oluropo Rufus Ayodele ,  Harold J. Vinegar ,  Christopher Kelvin Harris ,  John Michael Karanikas ,  Chester Ledlie Sandberg ,  Dhruv Arora

    IPC分类号： E21B43/24

    CPC分类号： E21B43/24 ,  E21B43/2401 ,  E21B43/2405 ,  E21B44/02 ,  H01C3/00 ,  H05B3/48 ,  H05B2214/03 ,  Y10T29/49083

    摘要： A system for treating a subsurface formation includes a wellbore at least partially located in a hydrocarbon containing formation. The wellbore includes a substantially vertical portion and at least two substantially horizontal or inclined portions coupled to the vertical portion. A first conductor is at least partially positioned in a first of the two substantially horizontal or inclined portions of the wellbore. At least the first conductor includes electrically conductive material. A power supply electrically excites the electrically conductive materials of the first conductor such that current flows between the electrically conductive materials in the first conductor, through at least a portion of the formation, to a second conductor at least partially positioned in a second of the two substantially horizontal or inclined portions of the wellbore. The current resistively heats at least a portion of the formation between the two substantially horizontally oriented or inclined portions of the wellbore.

    摘要翻译： 用于处理地下地层的系统包括至少部分地位于含烃地层中的井筒。 井筒包括基本垂直的部分和至少两个大致水平或倾斜的部分，其联接到垂直部分。 第一导体至少部分地定位在井筒的两个基本上水平或倾斜的部分中的第一个中。 至少第一导体包括导电材料。 电源电动地激发第一导体的导电材料，使得电流在第一导体中的导电材料之间流过地层的至少一部分，至少部分地定位在第二导体中的第二导体中的第二导体中。 井眼的大致水平或倾斜的部分。 电流电阻地加热井眼的两个基本水平定向或倾斜的部分之间的地层的至少一部分。