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    • 2. 发明授权
    • Method for in situ heat processing of hydrocarbonaceous formations
    • 烃类地层原位热处理方法
    • US4140180A
    • 1979-02-20
    • US828904
    • 1977-08-29
    • Jack BridgesAllen TafloveRichard Snow
    • Jack BridgesAllen TafloveRichard Snow
    • E21B36/04E21B43/24E21B43/30
    • E21B36/04E21B43/2401E21B43/305
    • The disclosure describes a technique for uniform heating of relatively large blocks of hydrocarbonaceous formations in situ using radio frequency (RF) electrical energy that is substantially confined to the volume to be heated and effects dielectric heating of the formations. An important aspect of the disclosure relates to the fact that certain hydrocarbonaceous earth formations, for example raw unheated oil shale, exhibit dielectric absorption characteristics in the radio frequency range. In accordance with the system of the invention, a plurality of conductors are inserted in the formations and bound a particular volume of the formations. The phrase "bounding a particular volume" is intended to mean that the volume is enclosed on at least two sides thereof. Electrical excitation is provided for establishing alternating electric fields in the volume. The frequency of the excitation is selected as a function of the dimensions of the volume so as to establish a substantially non-radiating electric field which is substantially confined in the volume. In this manner, volumetric dielectric heating of the formations will occur to effect approximately uniform controlled heating of the volume.
    • 本公开描述了使用基本上限于待加热体积并且影响地层的电介质加热的射频(RF)电能来均匀加热相对较大的烃类地层块的技术。 本公开的一个重要方面涉及某些烃类地层,例如原始的未加热油页岩,在无线电频率范围内表现出介电吸收特性。 根据本发明的系统,多个导体插入地层中并且结合了特定体积的地层。 短语“限定特定体积”旨在表示体积被封闭在其至少两侧。 提供电激励以在体积中建立交变电场。 选择激励的频率作为体积的尺寸的函数,以便建立基本上限制在体积中的基本上不辐射的电场。 以这种方式,将发生地层的体积电介质加热以实现体积的大致均匀的受控加热。
    • 3. 发明申请
    • Radio frequency technology heater for unconventional resources
    • 射频技术加热器用于非常规资源
    • US20070187089A1
    • 2007-08-16
    • US11655533
    • 2007-01-19
    • Jack Bridges
    • Jack Bridges
    • E21B43/24
    • E21B43/24E21B36/04E21B43/2401E21B43/2408
    • A system for heating at least a part of a subsurface hydro carbonaceous earth formation forms a borehole into or adjacent to the formation, places elongated coaxial inner and outer conductors into the borehole with the inner and outer conductors electrically connected to each other at a depth below the top of the formation, and connects an AC power source to at least the outer conductor to produce heat in at least one of the conductors. The AC output has a controlled frequency, and the outer conductor comprises a standard oil well component made of a ferromagnetic material that conducts current from the AC power source in only a surface region of the conductor due to the skin effect phenomenon. More heat is dissipated from portions of the conductor that is within the depth range of the formation than from other portions of the conductor. The inner conductor may optionally be a standard tubular oil well component made of a ferromagnetic material that conducts current from the AC power source in only a surface region of the conductor due to the skin effect phenomenon.
    • 用于加热至少一部分地下加氢碳质地层的系统在地层中或邻近地层形成钻孔,将细长的同轴内外导体放置在钻孔中,内和外导体在下面的深度彼此电连接 形成的顶部,并且将AC电源连接到至少外部导体,以在至少一个导体中产生热量。 交流输出具有受控频率,并且外导体包括由铁磁材料制成的标准油井部件,其由于皮肤效应现象而仅在导体的表面区域中传导来自AC电源的电流。 与导体的其他部分相比,在地层的深度范围内,导体部分的散热更多。 内部导体可以可选地是由铁磁材料制成的标准管状油井部件,其由于皮肤效应现象而仅在导体的表面区域中从AC电源传导电流。
    • 4. 发明授权
    • Apparatus and method for in situ heat processing of hydrocarbonaceous
formations
    • 烃类地层原位热处理装置及方法
    • US4144935A
    • 1979-03-20
    • US828621
    • 1977-08-29
    • Jack BridgesAllen Taflove
    • Jack BridgesAllen Taflove
    • E21B36/04E21B43/24E21B43/30
    • E21B43/2401E21B36/04E21B43/305
    • The disclosure describes a technique for uniform heating of relatively large blocks of hydrocarbonaceous formations in situ using radio frequency (RF) electrical energy that is substantially confined to the volume to be heated and effects of dielectric heating of the formations. An important aspect of the disclosure relates to the fact that certain hydrocarbonaceous earth formations, for example raw unheated oil shale, exhibit dielectric absorption characteristics in the radio frequency range. In accordance with the system of the invention, a plurality of conductors are inserted in the formations and bound a particular volume of the formations. The phrase "bounding a particular volume" is intended to mean that the volume is enclosed on at least two sides thereof. Electrical excitation is provided for establishing alternating electric fields in the volume. The frequency of the excitation is selected as a function of the dimensions of the volume so as to establish a substantially non-radiating electric field which is substantially confined in the volume. In this manner, volumetric dielectric heating of the formations will occur to effect approximately uniform controlled heating of the volume. BACKGROUND OF THE INVENTION
    • 本公开描述了使用基本上限于待加热的体积和地层的介电加热的影响的射频(RF)电能来均匀加热相对较大的烃类地层块的技术。 本公开的一个重要方面涉及某些烃类地层,例如原始的未加热油页岩,在无线电频率范围内表现出介电吸收特性。 根据本发明的系统,多个导体插入地层中并且结合了特定体积的地层。 短语“限定特定体积”旨在表示体积被封闭在其至少两侧。 提供电激励以在体积中建立交变电场。 选择激励的频率作为体积的尺寸的函数,以便建立基本上限制在体积中的基本上不辐射的电场。 以这种方式,将发生地层的体积电介质加热以实现体积的大致均匀的受控加热。