Method for in situ gasification of a subterranean coal bed
    1.
    发明授权
    Method for in situ gasification of a subterranean coal bed 失效
    地下煤层原位气化的方法

    公开(公告)号:US4026356A

    公开(公告)日:1977-05-31

    申请号:US681647

    申请日:1976-04-29

    申请人: Lowell Z. Shuck

    发明人: Lowell Z. Shuck

    CPC分类号: E21B43/30 E21B43/247 E21B7/14

    摘要: The method of the present invention relates to providing controlled directional bores in subterranean earth formations, especially coal beds for facilitating in situ gasification operations. Boreholes penetrating the coal beds are interconnected by laser-drilled bores disposed in various arrays at selected angles to the major permeability direction in the coal bed. These laser-drilled bores are enlarged by fracturing prior to the gasification of the coal bed to facilitate the establishing of combustion zones of selected configurations in the coal bed for maximizing the efficiency of the gasification operation.

    摘要翻译: 本发明的方法涉及在地下地层,特别是煤层中提供受控的定向孔,以便于原位气化操作。 穿透煤层的钻孔通过以与煤层中的主要渗透方向成选定角度设置的各种阵列的激光钻孔相互连接。 这些激光钻孔在煤层气化之前通过压裂而扩大,以便于在煤层中建立选定构型的燃烧区,以最大化气化作业的效率。

    Wellbore pressure transducer
    2.
    发明授权
    Wellbore pressure transducer 失效
    井筒压力传感器

    公开(公告)号:US4157528A

    公开(公告)日:1979-06-05

    申请号:US849570

    申请日:1977-11-08

    申请人: Lowell Z. Shuck

    发明人: Lowell Z. Shuck

    IPC分类号: E21B43/26 E21B47/06 G01L9/00

    摘要: Subterranean earth formations containing energy values are subjected to hydraulic fracturing procedures to enhance the recovery of the energy values. These fractures are induced in the earth formation by pumping liquid into the wellbore penetrating the earth formation until the pressure of the liquid is sufficient to fracture the earth formation adjacent to the wellbore. The present invention is directed to a transducer which is positionable within the wellbore to generate a signal indicative of the fracture initiation useful for providing a timing signal to equipment for seismic mapping of the fracture as it occurs and for providing a measurement of the pressure at which the fracture is initiated.

    摘要翻译: 含有能量值的地下地层受到水力压裂程序的影响,以提高能量值的恢复。 通过将液体泵入穿透地层的井筒中,这些裂缝在地层中被诱发,直到液体的压力足以破坏与井筒相邻的地层。 本发明涉及一种能够在井孔内定位的换能器,以产生指示断裂起始点的信号,该信号用于向裂缝发生的地震测绘设备提供定时信号,并用于提供压力的测量, 骨折发生。

    Method for in situ combustion
    3.
    发明授权
    Method for in situ combustion 失效
    原位燃烧方法

    公开(公告)号:US4062404A

    公开(公告)日:1977-12-13

    申请号:US728358

    申请日:1976-09-30

    CPC分类号: E21B43/305 E21B43/247

    摘要: This invention relates to an improved in situ combustion method for the recovery of hydrocarbons from subterranean earth formations containing carbonaceous material. The method is practiced by penetrating the subterranean earth formation with a borehole projecting into the coal bed along a horizontal plane and extending along a plane disposed perpendicular to the plane of maximum permeability. The subterranean earth formation is also penetrated with a plurality of spaced-apart vertical boreholes disposed along a plane spaced from and generally parallel to that of the horizontal borehole. Fractures are then induced at each of the vertical boreholes which project from the vertical boreholes along the plane of maximum permeability and intersect the horizontal borehole. The combustion is initiated at the horizontal borehole and the products of combustion and fluids displaced from the earth formation by the combustion are removed from the subterranean earth formation via the vertical boreholes. Each of the vertical boreholes are, in turn, provided with suitable flow controls for regulating the flow of fluid from the combustion zone and the earth formation so as to control the configuration and rate of propagation of the combustion zone. The fractures provide a positive communication with the combustion zone so as to facilitate the removal of the products resulting from the combustion of the carbonaceous material.

    摘要翻译: 本发明涉及一种用于从含有碳质材料的地下地层回收烃的改进的原位燃烧方法。 该方法是通过沿着水平面沿着垂直于最大磁导率平面设置的平面沿着水平面穿入地下地层而形成的。 地下地层也被沿着与水平钻孔的间隔开并且大致平行的平面设置的多个间隔开的垂直钻孔穿透。 然后在垂直钻孔中的每个垂直钻孔处沿着最大渗透平面突出并与水平钻孔相交,产生断裂。 燃烧在水平井眼开始,并且通过燃烧从地层排出的燃烧产物和流体产物经由垂直钻孔从地下地层中除去。 每个垂直钻孔又设置有适当的流动控制器,用于调节来自燃烧区域和地层的流体的流动,以便控制燃烧区域的构造和传播速率。 裂缝提供与燃烧区域的正向连通,以便于从碳质材料的燃烧中除去产物。

    Method for increasing the calorific value of gas produced by the in situ
combustion of coal
    4.
    发明授权
    Method for increasing the calorific value of gas produced by the in situ combustion of coal 失效
    提高煤原位燃烧产生的气体热值的方法

    公开(公告)号:US4095650A

    公开(公告)日:1978-06-20

    申请号:US823480

    申请日:1977-08-10

    申请人: Lowell Z. Shuck

    发明人: Lowell Z. Shuck

    摘要: The present invention relates to the production of relatively high Btu gas by the in situ combustion of subterranean coal. The coal bed is penetrated with a horizontally-extending borehole and combustion is initiated in the coal bed contiguous to the borehole. The absolute pressure within the resulting combustion zone is then regulated at a desired value near the pore pressure within the coal bed so that selected quantities of water naturally present in the coal will flow into the combustion zone to effect a hydrogen and carbon monoxide-producing steam-carbon reaction with the hot carbon in the combustion zone for increasing the calorific value of the product gas.

    摘要翻译: 本发明涉及通过地下煤的原位燃烧生产比较高的Btu气体。 煤层被水平延伸的钻孔穿透,并且在与钻孔相邻的煤床中开始燃烧。 然后将所得燃烧区内的绝对压力调节到接近煤层内孔隙压力的期望值,使得天然存在于煤中的选定量的水将流入燃烧区,以产生产生氢和一氧化碳的蒸汽 与燃烧区中的热碳反应,以增加产物气体的热值。

    Electromagnetic wave method for mapping subterranean earth formations
    5.
    发明授权
    Electromagnetic wave method for mapping subterranean earth formations 失效
    用于映射地下地层的电磁波方法

    公开(公告)号:US4045724A

    公开(公告)日:1977-08-30

    申请号:US674209

    申请日:1976-04-06

    IPC分类号: G01V3/30 G01V3/12 G01V3/18

    CPC分类号: G01V3/30

    摘要: The present invention is directed to a method for remotely mapping subterranean coal beds prior to and during in situ gasification operations. This method is achieved by emplacing highly directional electromagnetic wave transmitters and receivers in bore holes penetrating the coal beds and then mapping the anomalies surrounding each bore hole by selectively rotating and vertically displacing the directional transmitter in a transmitting mode within the bore hole, and thereafter, initiating the gasification of the coal at bore holes separate from those containing the transmitters and receivers and then utilizing the latter for monitoring the burn front as it progresses toward the transmitters and receivers.

    Apparatus and method for determining directional characteristics of
fracture systems in subterranean earth formations
    6.
    发明授权
    Apparatus and method for determining directional characteristics of fracture systems in subterranean earth formations 失效
    用于确定地下地层断裂系统方向特征的装置和方法

    公开(公告)号:US4446433A

    公开(公告)日:1984-05-01

    申请号:US272683

    申请日:1981-06-11

    申请人: Lowell Z. Shuck

    发明人: Lowell Z. Shuck

    IPC分类号: E21B47/02 G01V3/30 H01Q1/04

    CPC分类号: H01Q1/04 E21B47/02 G01V3/30

    摘要: The present invention is directed to a wireless fracture-mapping tool utilized for determining fracture directional and length characteristics of hydraulically induced fractures in subterranean earth formations containing recoverable energy values. The apparatus of the present invention utilizes antenna packages from which a transmitting antenna is propelled from a wellbore penetrating the earth formation into the fracture system. Signal-receiving antennas disposed on opposite sides of the transmitting antenna are likewise propelled into the fracture system for receiving signals from the transmitting antenna that are indicative of the fracture orientation and length. With the present invention the axial and singular three-dimensional location of the fracture or other fracture profiles may be readily mapped. This fracture-mapping system of the present invention aids in the recovery of the energy values from the subterranean earth formation by facilitating the strategic emplacement of wellbores to more efficiently recover the energy values in the subterranean earth formations.

    摘要翻译: 本发明涉及一种用于确定含有可恢复能量值的地下地层中水力诱发裂缝的断裂方向和长度特征的无线断裂映射工具。 本发明的装置利用天线包,其中发射天线从穿透地层的井筒推进到断裂系统中。 设置在发射天线的相对侧上的信号接收天线同样被推进到断裂系统中,用于从发射天线接收指示断裂取向和长度的信号。 利用本发明,可以容易地映射断裂或其它断裂轮廓的轴向和奇异的三维位置。 本发明的这种断裂映射系统有助于通过促进井眼的战略位置来更有效地回收地下地层中的能量值来从地下地层中回收能量值。

    Portable device and method for determining permeability characteristics
of earth formations
    7.
    发明授权
    Portable device and method for determining permeability characteristics of earth formations 失效
    便携式装置及确定地层渗透特性的方法

    公开(公告)号:US4052885A

    公开(公告)日:1977-10-11

    申请号:US717429

    申请日:1976-08-24

    申请人: Lowell Z. Shuck

    发明人: Lowell Z. Shuck

    IPC分类号: E21B49/00 G01N15/08 G01V9/00

    摘要: The invention is directed to a device which is used for determining permeability characteristics of earth formations at the surface thereof. The determination of the maximum permeability direction and the magnitude of permeability are achieved by employing a device comprising a housing having a central fluid-injection port surrounded by a plurality of spaced-apart fluid flow and pressure monitoring ports radially extending from the central injection port. With the housing resting on the earth formation in a relatively fluid-tight manner as provided by an elastomeric pad disposed therebetween, fluid is injected through the central port into the earth formation and into registry with the fluid-monitoring ports disposed about the injection port. The fluid-monitoring ports are selectively opened and the flow of the fluid through the various fluid ports is measured so as to provide a measurement of flow rates and pressure distribution about the center hole which is indicative on the earth formation permeability direction and magnitude. For example, the azimuthal direction of the fluid-monitoring ports in the direction through which the greatest amount of injected fluid flows as determined by the lowest pressure distribution corresponds to the direction of maximum permeability in the earth formation.

    摘要翻译: 本发明涉及一种用于确定地表在其表面的渗透特性的装置。 通过使用包括壳体的装置来实现最大磁导率方向和磁导率的大小的确定,所述壳体具有被从中心喷射口径向延伸的多个间隔开的流体流动和压力监测端口包围的中心流体注入口。 当壳体以相对流体密封的方式搁置在地层上时,由设置在它们之间的弹性体垫提供,流体通过中心端口注入地层并与设置在注射端口周围的流体监测端口对准。 流体监测端口被选择性地打开,并且测量流体通过各种流体端口的流动,以便提供围绕中心孔的流量和压力分布的测量,其指示地层渗透率方向和大小。 例如,由最低压力分布决定的最大量的注入流体流动的方向上的流体监测端口的方位方向对应于地层中最大磁导率的方向。

    Apparatus for providing directional permeability measurements in
subterranean earth formations
    8.
    发明授权
    Apparatus for providing directional permeability measurements in subterranean earth formations 失效
    用于在地下地层中提供定向渗透率测量的装置

    公开(公告)号:US4043192A

    公开(公告)日:1977-08-23

    申请号:US694117

    申请日:1976-06-08

    申请人: Lowell Z. Shuck

    发明人: Lowell Z. Shuck

    摘要: Directional permeability measurements are provided in a subterranean earth formation by injecting a high-pressure gas from a wellbore into the earth formation in various azimuthal directions with the direction having the largest pressure drop being indicative of the maximum permeability direction. These measurements are provided by employing an inflatable boot containing a plurality of conduits in registry with a like plurality of apertures penetrating the housing at circumferentially spaced-apart locations. These conduits are, in turn, coupled through a valved manifold to a source of pressurized gas so that the high-pressure gas may be selectively directed through any conduit into the earth formation defining the bore with the resulting difference in the pressure drop through the various conduits providing the permeability measurements.

    摘要翻译: 在地下地层中提供定向渗透率测量,通过将压力高的气体从井筒注入到地层中,在各方位角方向上,压力最大的方向指示最大渗透方向。 这些测量通过采用包含多个导管的可充气靴来提供,所述多个导管与在周向间隔开的位置穿透壳体的类似多个孔对准。 这些管道又通过阀门歧管耦合到加压气体源,使得高压气体可以被选择性地引导通过任何导管进入限定孔的地层中,从而导致通过各种不同的压降产生的差异 提供渗透性测量的导管。

    Apparatus for installing condition-sensing means in subterranean earth
formations
    9.
    发明授权
    Apparatus for installing condition-sensing means in subterranean earth formations 失效
    用于在地下地层中安装条件感测装置的装置

    公开(公告)号:US4279299A

    公开(公告)日:1981-07-21

    申请号:US101370

    申请日:1979-12-07

    申请人: Lowell Z. Shuck

    发明人: Lowell Z. Shuck

    摘要: The present invention is directed to an apparatus for installing strain gages or other sensors-transducers in wellbores penetrating subterranean earth formations. The subject apparatus comprises an assembly which is lowered into the wellbore, secured in place, and then actuated to sequentially clean the wellbore or casing surface at a selected location with suitable solvents, etchants and neutralizers, grind the surface to a relatively smooth finish, apply an adhesive to the surface, and attach the strain gages or the like to the adhesive-bearing surface. After installing the condition-sensing gages to the casing or earth formation the assembly is withdrawn from the wellbore leaving the sensing gages securely attached to the casing or the subterranean earth formation.

    摘要翻译: 本发明涉及一种用于在穿透地下地层的井眼中安装应变计或其它传感器的换能器。 主体装置包括一个下降到井眼中的组件,固定在适当位置,然后被致动以在合适的溶剂,蚀刻剂和中和剂在选定的位置依次清洁井筒或套管表面,将表面研磨成相对平滑的表面,涂覆 粘合剂到表面,并将应变计等附着到粘合剂承载表面上。 在将条件感测量规安装到套管或地层之后,将组件从井筒中取出,使感测量规牢固地附接到壳体或地下地层。

    Method for describing fractures in subterranean earth formations
    10.
    发明授权
    Method for describing fractures in subterranean earth formations 失效
    描述地下地层断裂的方法

    公开(公告)号:US4057780A

    公开(公告)日:1977-11-08

    申请号:US668346

    申请日:1976-03-19

    申请人: Lowell Z. Shuck

    发明人: Lowell Z. Shuck

    摘要: The configuration and directional orientation of natural or induced fractures in subterranean earth formations are described by introducing a liquid explosive into the fracture, detonating the explosive, and then monitoring the resulting acoustic emissions with strategically placed acoustic sensors as the explosion propagates through the fracture at a known rate.

    摘要翻译: 地下地层中天然或诱发裂缝的构型和定向取向是通过将液体炸药引入裂缝中,引爆爆炸物,然后在爆炸传播通过裂缝的情况下用策略性放置的声传感器监测所产生的声发射 已知率