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    Variable frequency temperature limited heaters
    3.
    发明申请
    Variable frequency temperature limited heaters 有权
    变频温度限制加热器

    公开(公告)号：US20050006097A1

    公开(公告)日：2005-01-13

    申请号：US10693700

    申请日：2003-10-24

    申请人： Chester Sandberg ,  Harold Vinegar ,  Christopher Harris ,  Jaime Son ,  Fredrick Carl

    发明人： Chester Sandberg ,  Harold Vinegar ,  Christopher Harris ,  Jaime Son ,  Fredrick Carl

    IPC分类号： E21B36/00 ,  E21B36/02 ,  E21B36/04 ,  E21B43/24

    CPC分类号： E21B36/008 ,  E21B36/02 ,  E21B36/04 ,  E21B43/24 ,  E21B43/2401 ,  H05B2214/03

    摘要： A heater system may include an alternating current supply and an electrical conductor. Alternating current may be applied to one or more electrical conductors at a frequency between about 100 Hz and about 1000 Hz. The electrical conductors may be located in a formation. The electrical conductors may resistively heat upon application of the alternating electrical current. At least one of the electrical conductors may include an electrically resistive ferromagnetic material. The electrical conductor may provide a reduced amount of heat above or near a selected temperature. Heat may transfer from the electrical conductor to a part of formation.

    摘要翻译： 加热器系统可以包括交流电源和电导体。 交流电可以以约100Hz至约1000Hz之间的频率施加到一个或多个电导体。 电导体可以位于地层中。 电导体可以在施加交流电流时进行电阻加热。 电导体中的至少一个可以包括电阻铁磁材料。 电导体可以在选定温度之上或附近提供减少量的热量。 热可能从电导体转移到形成部分。

    Temperature limited heaters with relatively constant current
    6.
    发明申请
    Temperature limited heaters with relatively constant current 有权

    公开(公告)号：US20060005968A1

    公开(公告)日：2006-01-12

    申请号：US11112878

    申请日：2005-04-22

    申请人： Harold Vinegar ,  Chester Sandberg ,  Christopher Harris

    发明人： Harold Vinegar ,  Chester Sandberg ,  Christopher Harris

    IPC分类号： E21B43/00 ,  E21B36/00

    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.

    Variable frequency temperature limited heaters
    7.
    发明申请
    Variable frequency temperature limited heaters 失效
    变频温度限制加热器

    公开(公告)号：US20050269093A1

    公开(公告)日：2005-12-08

    申请号：US11112863

    申请日：2005-04-22

    申请人： Chester Sandberg ,  Harold Vinegar ,  Christopher Harris

    发明人： Chester Sandberg ,  Harold Vinegar ,  Christopher Harris

    IPC分类号： E21B29/00 ,  E21B36/04 ,  E21B43/00 ,  E21B43/12 ,  E21B43/24 ,  E21B43/30 ,  E21B43/38 ,  H05B3/10 ,  H05B3/14 ,  H05B6/10

    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。

    Solution mining systems and methods for treating hydrocarbon containing formations
    8.
    发明申请
    Solution mining systems and methods for treating hydrocarbon containing formations 有权
    用于处理含烃地层的溶液开采系统和方法

    公开(公告)号：US20070221377A1

    公开(公告)日：2007-09-27

    申请号：US11584427

    申请日：2006-10-20

    申请人： Harold Vinegar ,  Eric Rouffignac ,  Lanny Schoeling

    发明人： Harold Vinegar ,  Eric Rouffignac ,  Lanny Schoeling

    IPC分类号： E21B43/24 ,  E21B43/17 ,  E21B43/28

    CPC分类号： E21B43/24 ,  C10G1/002 ,  C10G1/02 ,  C10G9/24 ,  C10G2300/308 ,  E21B43/2401 ,  E21B43/281 ,  E21B43/34

    摘要： A method for treating an oil shale formation comprising nahcolite is disclosed. The method includes providing a first fluid to a portion of the formation through at least two injection wells. A second fluid is produced from the portion through at least one injection well until at least two injection wells are interconnected such that fluid can flow between the two injection wells. The second fluid includes at least some nahcolite dissolved in the first fluid. The first fluid is injected through one of the interconnected injection wells. The second fluid is produced from at least one of the interconnected injection wells. Heat is provided from one or more heaters to the formation to heat the formation. Hydrocarbon fluids are produced from the formation.

    摘要翻译： 公开了一种用于处理包含海带石灰石的油页岩地层的方法。 该方法包括通过至少两个注入井向地层的一部分提供第一流体。 通过至少一个注入井从该部分产生第二流体，直到至少两个注入井互连，使得流体可以在两个注入井之间流动。 第二流体包括溶解在第一流体中的至少一些黑曲霉。 第一流体通过一个相互连接的注入井注入。 第二流体由互连的注入井中的至少一个产生。 从一个或多个加热器向地层提供热量以加热地层。 烃流体是从地层中产生的。

    Temperature limited heater with a conduit substantially electrically isolated from the formation
    9.
    发明申请
    Temperature limited heater with a conduit substantially electrically isolated from the formation 有权
    温度限制加热器具有与地层基本上电隔离的导管

    公开(公告)号：US20080017370A1

    公开(公告)日：2008-01-24

    申请号：US11585302

    申请日：2006-10-20

    申请人： Harold Vinegar ,  Chester Sandberg

    发明人： Harold Vinegar ,  Chester Sandberg

    IPC分类号： E21B43/00

    CPC分类号： E21B43/24 ,  C10G1/002 ,  C10G1/02 ,  C10G9/24 ,  C10G2300/308 ,  E21B43/2401 ,  E21B43/281 ,  E21B43/34

    摘要： A system for heating a hydrocarbon containing formation is described. A conduit may be located in an opening in the formation. The conduit includes ferromagnetic material. An electrical conductor is positioned inside the conduit, and is electrically coupled to the conduit at or near an end portion of the conduit so that the electrical conductor and the conduit are electrically coupled in series. Electrical current flows in the electrical conductor in a substantially opposite direction to electrical current flow in the conduit during application of electrical current to the system. The flow of electrons is substantially confined to the inside of the conduit by the electromagnetic field generated from electrical current flow in the electrical conductor so that the outside surface of the conduit is at or near substantially zero potential at 25° C. The conduit may generate heat and heat the formation during application of electrical current.

    摘要翻译： 描述了用于加热含烃地层的系统。 导管可以位于地层中的开口中。 导管包括铁磁材料。 电导体定位在导管内部，并且在导管的端部处或附近电连接到导管，使得电导体和导管电串联连接。 在向系统施加电流时，电流在电导体中以与导管中的电流流动基本相反的方向流动。 电子的流动通过由电导体中的电流流动产生的电磁场基本上限制在导管的内部，使得导管的外表面在25℃处于或接近基本为零电位。导管可以产生 在施加电流期间加热和加热地层。

    Temperature limited heaters using modulated DC power
    10.
    发明申请
    Temperature limited heaters using modulated DC power 失效
    温度限制加热器采用调制直流电源

    公开(公告)号：US20050269089A1

    公开(公告)日：2005-12-08

    申请号：US11112713

    申请日：2005-04-22

    申请人： Chester Sandberg ,  Harold Vinegar

    发明人： Chester Sandberg ,  Harold Vinegar

    IPC分类号： E21B29/00 ,  E21B36/04 ,  E21B43/00 ,  E21B43/12 ,  E21B43/24 ,  E21B43/30 ,  E21B43/38 ,  H05B3/10 ,  H05B3/14 ,  H05B6/10

    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 at least a part of a subsurface formation. The system includes an electrical power supply configured to provide modulated direct current (DC). The system also includes a heater section including 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 electrical current is applied to the heater section below a selected temperature. The heater section provides a second heat output approximately at and above the selected temperature during use. The heater section has a turndown ratio of at least 1.1 to 1. The system is configured to heat at least part of a subsurface formation.

    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系统。 该系统包括被配置为提供调制直流（DC）的电源。 该系统还包括加热器部分，其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。 当将电流施加到加热器部分低于选定温度时，加热器部分提供第一热量输出。 加热器部分在使用期间提供大约等于或高于选定温度的第二热输出。 加热器部分具有至少1.1比1的调节比。该系统构造成加热至少部分地下地层。