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1. 发明申请

WO2015175237A1 USE OF A FRACTAL ANTENNA IN ARRAY DIELECTRIC LOGGING 审中-公开
标题翻译：分散天线在阵列介质测井中的应用
公开(公告)号：WO2015175237A1
公开(公告)日：2015-11-19
申请号：PCT/US2015/028691
申请日：2015-05-01
申请人： BAKER HUGHES INCORPORATED
发明人： KOUCHMESHKY, Babak , FORGANG, Stanislav W. , KHOKHAR, Rashid W.
IPC分类号： G01V3/26 , E21B49/00
CPC分类号： E21B47/122 , E21B47/011 , E21B49/00 , G01V3/12 , G01V3/26 , G01V3/28 , G01V3/30
摘要： An apparatus for estimating a property of an earth formation includes: a carrier configured to be conveyed through a borehole penetrating an earth formation; a first fractalshaped antenna element disposed on the carrier and configured to at least one of transmit electromagnetic energy into the formation and receive electromagnetic energy from the formation; and a second fractal-shaped antenna element electrically connected to the first fractal-shaped antenna element at a connection and configured to at least one of transmit electromagnetic energy into the formation and receive electromagnetic energy from the formation; wherein the second fractal-shaped antenna element is substantially a mirror image of the first fractal antenna element with respect to a reflection about the connection.
摘要翻译：用于估计地球物理性质的装置包括：构造成通过穿透地层的钻孔传送的载体; 第一分形天线元件，设置在载体上并且被配置为将电磁能量发射到地层中并且从地层接收电磁能量中的至少一个; 以及第二分形状天线元件，其在连接处电连接到所述第一分形天线元件，并且被配置为向所述地层中传输电磁能量中的至少一个并且接收来自所述地层的电磁能量; 其中所述第二分形天线元件相对于关于所述连接的反射基本上是所述第一分形天线元件的镜像。

2. 发明申请

WO2017205045A1 ARRAYS OF RECEIVE ANTENNAS FOR MAGNETIC RESONANCE MEASUREMENTS 审中-公开
标题翻译：接收天线阵列用于磁共振测量
公开(公告)号：WO2017205045A1
公开(公告)日：2017-11-30
申请号：PCT/US2017/031700
申请日：2017-05-09
申请人： BAKER HUGHES INCORPORATED
发明人： RAMIREZ, Marc S. , EDWARDS, Carl M. , FORGANG, Stanislav W. , KOUCHMESHKY, Babak
IPC分类号： G01V3/32 , G01R33/341
CPC分类号： G01V3/32 , G01N24/081 , G01R33/34046 , G01R33/3415 , G01R33/365 , G01R33/3808 , G01R33/383
摘要： A nuclear magnetic resonance apparatus for estimating properties of an earth formation includes a carrier configured to be deployed in a borehole in the earth formation and at least one transmitting assembly disposed in the carrier and configured to generate an oscillating magnetic field in a volume of interest within the earth formation. The apparatus also includes at least one receiving assembly disposed in the carrier and configured to detect a nuclear magnetic resonance (NMR) signal originating in the volume of interest. In this apparatus, the receiving assembly includes at least a first longitudinal region with a loop coil and a butterfly coil, the loop coil central axis being located over a region of the magnet assembly where a static magnetic field is predominantly along an azimuthal direction to the carrier and the butterfly coil being at least partially overlapped with the loop coil to reduce mutual coupling.
摘要翻译：用于估计地球地层的性质的核磁共振设备包括：构造成布置在地层中的钻孔中的载体;以及布置在载体中并且构造成产生振荡的至少一个发射组件在地层内的感兴趣体积中的磁场。该装置还包括至少一个接收组件，该接收组件设置在载体中并且被配置为检测源自感兴趣体积的核磁共振（NMR）信号。在该设备中，接收组件至少包括具有环形线圈和蝶形线圈的第一纵向区域，环形线圈中心轴位于磁体组件的区域上方，其中静磁场主要沿着与磁体的方位角方向载体和蝶形线圈与环形线圈至少部分重叠以减少相互耦合。

3. 发明申请

WO2016201057A1 ANTENNA STRUCTURES AND APPARATUS FOR DIELECTRIC LOGGING 审中-公开
标题翻译：天线结构和电介质记录装置
公开(公告)号：WO2016201057A1
公开(公告)日：2016-12-15
申请号：PCT/US2016/036619
申请日：2016-06-09
申请人： BAKER HUGHES INCORPORATED
发明人： KOUCHMESHKY, Babak , FANINI, Otto, N. , FORGANG, Stanislav, W.
IPC分类号： E21B47/00 , G01V3/18 , G01V3/26 , G01V3/28
CPC分类号： G01V3/38 , G01V3/30 , H01Q1/04 , H01Q7/00 , H01Q11/10 , H01Q21/24
摘要： This disclosure describes a dielectric logging tool for evaluating the earth formation using at least one transmitter antenna disposed in a cavity on a pad engaged with a borehole wall. The logging tool may comprise at least one power driver in electrical communication with the at least one transmitter antenna and configured to modulate a phase of output current of the at least one power driver. The logging tool may enforce symmetric current on both feeds of the at least one transmitter antenna causing a point of symmetry of the current to align with an axis of geometric symmetry of the at least one transmitter antenna. A parameter of interest of the formation may be estimated by using the attenuation and phase difference between the received and transmitted signals or between received signals from spaced receivers.
摘要翻译：本公开描述了一种用于使用至少一个发射天线来评估地层的介电测井工具，所述发射天线设置在与钻孔壁接合的垫上的空腔中。测井工具可以包括与至少一个发射机天线电通信的至少一个功率驱动器，并且被配置成调制至少一个功率驱动器的输出电流的相位。测井工具可以在至少一个发射机天线的两个馈电上施加对称电流，使得电流的对称点与至少一个发射器天线的几何对称轴对齐。可以通过使用接收和发送的信号之间的衰减和相位差或者来自间隔的接收器的接收信号来估计地层感兴趣的参数。

4. 发明申请

WO2017165480A2 ESTIMATING PARAMETERS OF ARCHIE'S LAW AND FORMATION TEXTURE INFORMATION 审中-公开
标题翻译：对ARCHIE法则参数的估计和形成纹理信息
公开(公告)号：WO2017165480A2
公开(公告)日：2017-09-28
申请号：PCT/US2017/023522
申请日：2017-03-22
申请人： BAKER HUGHES INCORPORATED
发明人： KOUCHMESHKY, Babak , KHOKHAR, Rashid W.
IPC分类号： G01V1/28 , G01V1/30 , G06F17/10
CPC分类号： G01V99/005 , E21B49/00 , G01V3/08 , G01V3/28
摘要： Methods and apparatus for evaluating an earth formation for generating a numerical model comprising an expression equating a representation for the effective conductivity under Archie's law with respect to direct current with a function for the effective conductivity representative of the mixing model with respect to direct current; and solving a system of equations to obtain values for the Archie parameters including at least i) the expression; ii) a second expression equating a first order variation of the representation with a first order variation of the function with respect to water saturation of the formation (Sw); and iii) a third expression equating a first order variation of the representation with a first order variation of the function with respect to porosity of the formation (φ). The second and third expressions may equate derivatives of the representation with derivatives of the function.
摘要翻译：用于评估用于生成数字模型的地球地层的方法和设备包括等同于Archie定律中关于直流的有效电导率的表示与表示混合的有效电导率的函数的表达式关于直流电的模型; 并且求解方程组以获得Archie参数的值，包括至少i）表达式; ii）将所述表示的一阶变化等同于所述函数关于所述地层的水饱和度的一阶变化（Sw）的第二表达式; 以及iii）将所述表示的一阶变化与所述函数关于地层孔隙度的一阶变化相等的第三表达式。第二和第三个表达式可以将表示的导数与函数的导数等同。

5. 发明申请

WO2017066003A1 WHOLE-SPACE INVERSION USING PHASE CORRECTION METHOD FOR MULTI-FREQUENCY DIELECTRIC ARRAY LOGGING TOOL 审中-公开
标题翻译：多频电介质阵列测井工具相位校正法的全空间反演
公开(公告)号：WO2017066003A1
公开(公告)日：2017-04-20
申请号：PCT/US2016/054972
申请日：2016-09-30
申请人： BAKER HUGHES INCORPORATED
发明人： KOUCHMESHKY, Babak , FANINI, Otto, N.
IPC分类号： E21B47/00 , G01V3/18 , G01V3/38
CPC分类号： G01V3/30 , E21B47/01 , E21B47/02216 , E21B47/082 , E21B47/102 , E21B47/122 , E21B47/14 , H04Q9/12
摘要： Systems, methods, and devices for evaluation of an earth formation intersected by a borehole using a logging tool. Methods include exciting an upper and lower transmitter; receiving signals at a plurality of receivers between the upper and lower transmitter; estimating a phase shift attributable to a volume of interest of the formation adjacent to a section of the carrier corresponding to the plurality of receivers by estimating phase shifts attributable only to portions of the volume of interest adjacent to corresponding portions of the section between each adjacent pair of receivers of the plurality of receivers; wherein each adjacent pair is positioned at a corresponding distance that is no more than half of the shortest wavelength of those wavelengths associated with the received signals. Estimating a phase shift between an adjacent pair of receivers may be carried out using a first relative phase value; and a second relative phase value.
摘要翻译：用于使用测井工具评估与钻孔相交的地层的系统，方法和设备。方法包括激发上下发射机; 在上部和下部发射机之间的多个接收机处接收信号; 通过估计仅归因于邻近于每个相邻对之间的部分的对应部分的感兴趣体积的部分的相移，估计可归因于邻近与多个接收器对应的载体部分的地层的感兴趣体积的相移多个接收机的接收机; 其中每个相邻对定位在不大于与所述接收信号相关联的那些波长的最短波长的一半的对应距离处。估计相邻接收器对之间的相移可以使用第一相对相位值来执行; 和第二相对相位值。

6. 发明申请

WO2016003678A1 METHOD AND APPARATUS FOR INVERSION IN DIELECTRIC LOGGING 审中-公开
标题翻译：用于电介质记录反演的方法和装置
公开(公告)号：WO2016003678A1
公开(公告)日：2016-01-07
申请号：PCT/US2015/036861
申请日：2015-06-22
申请人： BAKER HUGHES INCORPORATED
发明人： KOUCHMESHKY, Babak , KHOKHAR, Rashid W. , MAURER, Hans-Martin , MEYER, Wallace H.
IPC分类号： E21B47/00 , G01V3/18 , G01V3/36
CPC分类号： G01V3/38 , G01V3/20 , G01V3/28
摘要： A method for inverting dielectric logging tool measurement data to estimate an electrical characteristic of an earth formation includes: receiving measurement data from the logging tool having a transmitter antenna and receiver antennas spaced known distances from the transmitter antenna; establishing an equation relating magnetic field measurements made by the receiver antennas to the distances and a wave vector; establishing an error equation that quantifies a difference between the magnetic field measurements made by the receiver antennas to magnetic field measurements made by the receiver antennas that would be obtained with an estimated formation electrical characteristic; calculating an error using the error equation for an initial estimated value of the wave vector that comprises a term having a first number multiplied times a second number of radians to provide a plurality of calculated errors; and determining a minimum error from the plurality of calculated errors to estimate the electrical characteristic.
摘要翻译：一种用于反转介电测井工具测量数据以估计地球地层电气特性的方法，包括：从测井工具接收测量数据，该测量工具具有距发射机天线间隔已知距离的发射机天线和接收机天线; 建立将接收机天线进行的磁场测量与距离和波矢量相关联的方程; 建立一个误差方程，其量化由接收机天线进行的磁场测量之间的差异与由估计的地层电特性获得的接收机天线进行的磁场测量; 使用所述波矢量的初始估计值的误差方程来计算误差，所述误差方程包括具有第一数乘以第二数量弧度的项，以提供多个计算误差; 以及从所述多个计算的误差确定最小误差以估计所述电特性。

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