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1. 发明授权

US08881806B2 Systems and methods for treating a subsurface formation with electrical conductors 有权
标题翻译：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。

2. 发明授权

US07575052B2 In situ conversion process utilizing a closed loop heating system 有权
标题翻译：使用闭环加热系统的原位转化过程
公开(公告)号：US07575052B2
公开(公告)日：2009-08-18
申请号：US11409556
申请日：2006-04-21
申请人： Chester Ledlie Sandberg , Thomas David Fowler , Harold J. Vinegar , Willen Jan Antoon Henri Schoeber
发明人： Chester Ledlie Sandberg , Thomas David Fowler , Harold J. Vinegar , Willen Jan Antoon Henri Schoeber
IPC分类号： E21B36/00 , E21B36/04 , E21B43/24
CPC分类号： E21B43/24 , C07C4/02 , E21B17/028 , E21B36/001 , E21B36/04 , E21B43/243 , Y10T29/49179 , C07C9/04
摘要： An in situ conversion system for producing hydrocarbons from a subsurface formation is described. The system includes a plurality of u-shaped wellbores in the formation. Piping is positioned in at least two of the u-shaped wellbores. A fluid circulation system is coupled to the piping. The fluid circulation system is configured to circulate hot heat transfer fluid through at least a portion of the piping to form at least one heated portion of the formation. An electrical power supply is configured to provide electrical current to at least a portion of the piping located below an overburden in the formation to resistively heat at least a portion of the piping. Heat transfers from the piping to the formation.
摘要翻译：描述了用于从地下地层生产烃的原位转化系统。该系统在地层中包括多个u形井筒。管道位于至少两个u形井眼中。流体循环系统耦合到管道。流体循环系统被配置为使热传热流体循环通过管道的至少一部分以形成地层的至少一个加热部分。电源构造成向位于地层中的覆盖层下方的管道的至少一部分提供电流，以电阻地加热管道的至少一部分。从管道传输到地层。

3. 发明授权

US07490665B2 Variable frequency temperature limited heaters 失效
标题翻译：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。

4. 发明授权

US07481274B2 Temperature limited heaters with relatively constant current 有权
标题翻译：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。

5. 发明授权

US09051829B2 Perforated electrical conductors for treating subsurface formations 有权
标题翻译：用于处理地下地层的穿孔电导体
公开(公告)号：US09051829B2
公开(公告)日：2015-06-09
申请号：US12576815
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： E21B43/00 , E21B43/24 , H05B3/48 , H01C3/00
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 plurality of conduits at least partially located in a portion of a hydrocarbon containing formation. At least part of two of the conduits are aligned in relation to each other such that electrical current will flow from a first conduit to a second conduit. The first and second conduits include electrically conductive material and at least one of the first and second conduits is perforated or configured to be perforated. A power supply is coupled to the first and second conduits. The power supply electrically excites at least one of the conductive sections such that current flows between the first conduit and the second conduit in the formation and heats at least a portion of the formation between the two conduits.
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的一部分中的多个管道。两个导管的至少一部分彼此相对排列，使得电流将从第一导管流到第二导管。第一和第二导管包括导电材料，并且第一和第二导管中的至少一个被穿孔或构造成穿孔。电源耦合到第一和第二导管。电源电动地激励导电部分中的至少一个，使得电流在地层中的第一导管和第二导管之间流动，并加热两个导管之间的至少一部分地层。

6. 发明申请

US20090189617A1 CONTINUOUS SUBSURFACE HEATER TEMPERATURE MEASUREMENT 审中-公开
标题翻译：连续表面加热器温度测量
公开(公告)号：US20090189617A1
公开(公告)日：2009-07-30
申请号：US12250303
申请日：2008-10-13
申请人： David Burns , Chester Ledlie Sandberg
发明人： David Burns , Chester Ledlie Sandberg
IPC分类号： G01R27/00
CPC分类号： H01F29/04 , E21B36/04 , E21B43/24 , E21B43/30 , H01F27/38 , H01J37/32926 , H01J37/32935 , Y10T29/49083
摘要： A method for assessing one or more temperatures of an electrically powered subsurface heater includes accessing an impedance profile of the electrically powered subsurface heater while the heater is being operated in the subsurface. The impedance profile is analyzed with a frequency domain algorithm to assess one or more temperatures of the heater.
摘要翻译：用于评估电动地下加热器的一个或多个温度的方法包括在加热器在地下工作的同时访问电动地下加热器的阻抗曲线。用频域算法分析阻抗曲线，以评估加热器的一个或多个温度。

7. 发明授权

US07431076B2 Temperature limited heaters using modulated DC power 失效
标题翻译：温度限制加热器采用调制直流电源
公开(公告)号：US07431076B2
公开(公告)日：2008-10-07
申请号：US11112713
申请日：2005-04-22
申请人： Chester Ledlie Sandberg , Harold J. Vinegar
发明人： Chester Ledlie Sandberg , Harold J. Vinegar
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： The invention provides 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); and one or more electrical conductors configured to be electrically coupled to the electrical power supply and placed in an opening in the formation, wherein at least one of the electrical conductors has a heater section, the heater section comprising an electrically resistive ferromagnetic material configured to provide an electrically resistive heat output when electrical current is applied to the ferromagnetic material, and the heater section is configured to provide a reduced amount of heat near or above a selected temperature during use due to the decreasing electrical resistance of the heater section when the temperature of the ferromagnetic material is near or above the selected temperature, and the heater section has a turndown ratio of at least 1.1 to 1.
摘要翻译：本发明提供一种被配置为加热地下地层的至少一部分的系统。该系统包括：配置成提供调制直流（DC）的电源; 以及一个或多个电导体，其被配置为电耦合到所述电源并且放置在所述地层中的开口中，其中所述电导体中的至少一个具有加热器部分，所述加热器部分包括电阻铁磁材料，当电流被施加到铁磁材料时，电阻热输出，并且加热器部分被配置为在使用期间提供接近或高于选定温度的减少的热量，这是由于当加热器部分的温度铁磁材料接近或高于所选择的温度，并且加热器部分的调节比至少为1.1比1。

8. 发明授权

US07353872B2 Start-up of temperature limited heaters using direct current (DC) 失效
标题翻译：使用直流（DC）启动温度限制加热器
公开(公告)号：US07353872B2
公开(公告)日：2008-04-08
申请号：US11112855
申请日：2005-04-22
申请人： Chester Ledlie Sandberg
发明人： Chester Ledlie Sandberg
IPC分类号： E21B36/04 , E21B43/24
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 method for heating a subsurface formation. The method includes applying direct electrical current (DC) to a heater section below a first selected temperature to provide an electrically resistive heat output. The 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. Time-varying current is applied to the heater section when a temperature of the heater section approaches or is above the selected temperature. Heat is allowed to transfer from the heater section to a part of the subsurface formation.
摘要翻译：某些实施例提供了一种加热地下地层的方法。该方法包括将直流电（DC）施加到低于第一选定温度的加热器部分以提供电阻热输出。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。当加热器部件的温度接近或高于所选择的温度时，时变电流被施加到加热器部分。允许热量从加热器部分转移到地下地层的一部分。

9. 发明授权

US07121341B2 Conductor-in-conduit temperature limited heaters 有权
标题翻译：电导管温度限制加热器
公开(公告)号：US07121341B2
公开(公告)日：2006-10-17
申请号：US10693819
申请日：2003-10-24
申请人： Harold J. Vinegar , Chester Ledlie Sandberg , Christopher Kelvin Harris , Jaime Santos Son , Fredrick Gordon Carl, Jr.
发明人： Harold J. Vinegar , Chester Ledlie Sandberg , Christopher Kelvin Harris , Jaime Santos Son , Fredrick Gordon Carl, Jr.
IPC分类号： E21B43/24 , E21B36/04
CPC分类号： E21B36/008 , E21B36/02 , E21B36/04 , E21B43/24 , E21B43/2401 , H05B2214/03
摘要： A heater may include an electrical conductor. Applying alternating current to the electrical conductor may generate resistively heat the electrical conductor. The electrical conductor may include an electrically resistive ferromagnetic material. The ferromagnetic material may at least partially surround a non-ferromagnetic material. The heater may provide a reduced amount of heat above or near a selected temperature. A conduit may at least partially surround the electrical conductor. A centralizer may maintain a separation distance between the electrical conductor and the conduit.
摘要翻译：加热器可以包括电导体。对电导体施加交流电可以产生电导体的电阻。电导体可以包括电阻铁磁材料。铁磁材料可以至少部分地围绕非铁磁材料。加热器可以在选定温度之上或附近提供减少的热量。导管可以至少部分地围绕电导体。扶正器可以保持电导体和导管之间的间隔距离。

10. 发明授权

US08224164B2 Insulated conductor temperature limited heaters 有权
标题翻译：绝缘导体温度限制加热器
公开(公告)号：US08224164B2
公开(公告)日：2012-07-17
申请号：US10693840
申请日：2003-10-24
申请人： Chester Ledlie Sandberg , Harold J. Vinegar , Christopher Kelvin Harris , Jaime Santos Son , Fredrick Gordon Carl, Jr.
发明人： Chester Ledlie Sandberg , Harold J. Vinegar , Christopher Kelvin Harris , Jaime Santos Son , Fredrick Gordon Carl, Jr.
IPC分类号： E21B36/04 , E21B36/00
CPC分类号： E21B36/008 , E21B36/02 , E21B36/04 , E21B43/24 , E21B43/2401 , H05B2214/03
摘要： A heater may include an electrical conductor. Applying alternating current to the electrical conductor may resistively heat the electrical conductor. The electrical conductor may include an electrically resistive ferromagnetic material. The ferromagnetic material may at least partially surround a non-ferromagnetic material. The heater may provide a reduced amount of heat above or near a selected temperature. An electrical insulator may at least partially surround the electrical conductor. A sheath may at least partially surround the electrical insulator.
摘要翻译：加热器可以包括电导体。向电导体施加交流电可以电阻地加热电导体。电导体可以包括电阻铁磁材料。铁磁材料可以至少部分地围绕非铁磁材料。加热器可以在选定温度之上或附近提供减少的热量。电绝缘体可以至少部分地围绕电导体。护套可以至少部分地围绕电绝缘体。

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