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公开(公告)号：US4599566A
公开(公告)日：1986-07-08
申请号：US480639
申请日：1983-03-31
申请人： Percy T. Cox , Wayne F. Warren
发明人： Percy T. Cox , Wayne F. Warren
CPC分类号： G01V3/28
摘要： An improvement to a conventional one transmitter coil-two receiver coil dielectric well logging sonde permits the well logging sonde to have deeper penetration of the earthen formation when measuring dielectric constants. The improvement includes increased spacing between the receiver coils and the transmitter coil and operation of the transmitter coil at a higher power level.
摘要翻译： 传统的一个发射器线圈两个接收器线圈电介质测井探头的改进允许测井探测器在测量介电常数时具有较深的土层形成。 改进包括增加接收器线圈与发射器线圈之间的间隔以及在较高功率电平下对发射器线圈的操作。
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12.发明授权
公开(公告)号：US4107597A
公开(公告)日：1978-08-15
申请号：US749845
申请日：1976-12-13
CPC分类号： G01V3/30
摘要： The invention disclosed herein includes methods and apparatus for determining true formation resistivity, flushed zone resistivity and invasion diameter of the earth formation in the vicinity of a well borehole. A radio frequency electromagnetic field in the frequency range from 800 kilohertz to 4 megahertz is generated in a borehole and the electromagnetic field is detected at a plurality of longitudinally spaced locations. Measurements of the attenuation and propagation velocity of the electromagnetic wave at the longitudinally spaced receivers may then be interpreted according to predetermined relationships in terms of the formation resistivity, flushed zone resistivity and invasion diameter surrounding the borehole.
摘要翻译： 本文公开的发明包括用于确定井眼附近的地层的真实地层电阻率，冲刷区电阻率和侵入直径的方法和装置。 在钻孔中产生频率范围从800千赫兹到4兆赫兹的射频电磁场，并且在多个纵向间隔位置检测电磁场。 然后可以根据围绕钻孔的地层电阻率，冲刷区电阻率和入侵直径根据预定的关系来解释在纵向间隔的接收器处的电磁波的衰减和传播速度的测量。
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13.发明授权
公开(公告)号：US3993944A
公开(公告)日：1976-11-23
申请号：US643421
申请日：1975-12-22
CPC分类号： G01V3/28
摘要： An exemplary embodiment of the invention includes method for measuring the dielectric constant and resistivity of the invaded zone and the virgin formation in a fluid filled well bore hole. Dual induction laterolog measurements are employed to determined R.sub.t and R.sub.xo. Dual spaced radio frequency dielectric induction log measurements are employed to determine .epsilon..sub.t and .epsilon..sub.xo. By combining these measurements, a movable oil plot may be obtained in highly resistive formations.
摘要翻译： 本发明的示例性实施例包括用于测量流体填充的井眼孔中的入侵区域和原始地层的介电常数和电阻率的方法。 采用双重感应测量来确定Rt和Rxo。 采用双重间隔的射频介电感应对数测量来确定ε和εx。 通过组合这些测量，可以在高电阻地层中获得可移动的油图。
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公开(公告)号：US5249455A
公开(公告)日：1993-10-05
申请号：US811633
申请日：1991-12-23
申请人： Percy T. Cox
发明人： Percy T. Cox
CPC分类号： G01N33/2823 , G01N27/223 , G01N27/226
摘要： A water cut meter includes a test cell through which a petroleum stream will flow. The test cell includes an outer shell, a sensor probe which cooperates with the outer shell to form a sensor capacitor with the flow of the petroleum stream as the dielectric and a reference probe surrounded with pure oil as the dielectric to form a reference capacitor. Processing apparatus includes a comparator network electrically connected to the sensor capacitor and to reference capacitor which compares the capacitance of the sensor capacitor with the capacitance of the reference capacitor. The comparator network provides a signal corresponding to the capacitance difference between the sensor and reference capacitors. An output circuit connected to the comparator network provides an output corresponding to the water cut of the petroleum stream in accordance with the signal from the comparator network.
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15.发明授权
公开(公告)号：US4972149A
公开(公告)日：1990-11-20
申请号：US890209
申请日：1986-07-28
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： The present invention is a thin bed resistivity well logging system and method which includes a transmitter transmitting electromagnetic energy into an earth formation, from within a borehole traversing the earth's formation, at a frequency lying within a range of frequencies from 500 kilohertz to 4 megahertz. The system, a portion of which is located in the borehole, determines the true resistivity of a thin strata in accordance with the transmitted electromagnetic energy that has propagated through the earth's formation.
摘要翻译： 本发明是一种薄床电阻率测井系统和方法，其包括从在500千赫兹至4兆赫兹的频率范围内的频率从穿过地球地层的钻孔内将电磁能传输到地层中的发射器。 该系统的一部分位于钻孔中，根据传播通过地球形成的电磁能确定薄层的真实电阻率。
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公开(公告)号：US4897605A
公开(公告)日：1990-01-30
申请号：US840370
申请日：1986-03-17
IPC分类号： G01V3/30
CPC分类号： G01V3/30
摘要： A well logging system and method of the present invention determines the dielectric constant and/or conductivity of earth formations some of which have fluid invasion. The system and method of the present invention includes the transmission of electromagnetic energy into the earth formation from a first location in a borehole in the formations at a frequency which enables the electromagnetic energy to propagate throughout the surrounding earth formations. Electromagnetic energy is received by receivers at three locations in the borehole which are spaced longitudinally from the location of the transmission of the electromagnetic energy. The receivers provide signals representative of the total electromagnetic fields at those locations. The dielectric constant and/or resistivity of the earth formations are determined in accordance with portions of the signals from the three receivers corresponding to secondary electromagnetic fields at the three receiving locations.
摘要翻译： 本发明的测井系统和方法确定地层的介电常数和/或电导率，其中一些具有流体侵入。 本发明的系统和方法包括以能够使电磁能量传播到周围地层的频率从地层中的钻孔中的第一位置将电磁能传输到地层中。 电磁能被接收机在钻孔中的三个位置接收，这些位置与电磁能量传输的位置纵向隔开。 接收器提供代表这些位置处的总电磁场的信号。 地层的介电常数和/或电阻率根据三个接收器对应于次级电磁场的信号的部分来确定。
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公开(公告)号：US4700141A
公开(公告)日：1987-10-13
申请号：US826532
申请日：1986-02-06
CPC分类号： G01V3/30
摘要： A well logging system and method of the present invention determines the dielectric constant and/or conductivity of earth formations some of which have fluid invasion. The system and method of the present invention include the transmission of electromagnetic energy into the earth formations from a first location in a borehole in the formations at a frequency which enables the electromagnetic energy to propagate throughout the surrounding earth formations. Electromagnetic energy is received by receivers at three locations in the borehole which are spaced longitudinally from the location of the transmission of the electromagnetic energy. The receivers provide signals representative of the received electromagnetic energy. The dielectric constant and/or resistivity of the earth formations are determined in accordance with the signals from the three receivers.
摘要翻译： 本发明的测井系统和方法确定地层的介电常数和/或电导率，其中一些具有流体侵入。 本发明的系统和方法包括以能够使电磁能量传播到周围地层的频率从地层中的钻孔中的第一位置将电磁能传输到地层中。 电磁能被接收机在钻孔中的三个位置接收，这些位置与电磁能量传输的位置纵向隔开。 接收器提供表示所接收的电磁能的信号。 根据来自三个接收器的信号确定地层的介电常数和/或电阻率。
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18.发明授权
公开(公告)号：US4012689A
公开(公告)日：1977-03-15
申请号：US517704
申请日：1974-10-24
CPC分类号： G01V3/28
摘要： The invention disclosed herein includes methods and apparatus for determining the resistivity and dielectric constant of earth materials in the vicinity of a well borehole. A radio frequency electromagnetic field in the frequency range from 20 to 40 megahertz is generated in a borehole and the total electromagnetic field at two longitudinally spaced locations is detected. Measurements of the relative phase shift in the field between the detector locations and the amplitude of the field at least at one of the detector locations may then be interpreted according to predetermined relationships in terms of the earth formation resistivity and dielectric constant.
摘要翻译： 本文公开的本发明包括用于确定井眼附近的土壤材料的电阻率和介电常数的方法和装置。 在井眼中产生频率范围为20至40兆赫兹的射频电磁场，并且检测两个纵向间隔位置处的总电磁场。 可以根据地球电阻率和介电常数的预定关系来解释至少在检测器位置之一处的检测器位置与场的振幅之间的场中相对相移的测量。
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公开(公告)号：US5033289A
公开(公告)日：1991-07-23
申请号：US467078
申请日：1990-01-18
申请人： Percy T. Cox
发明人： Percy T. Cox
CPC分类号： G01N27/223 , G01N33/2823
摘要： Apparatus monitors the water cut of a petroleum stream flowing in a pipeline by comparing a probe signal to a reference signal. A probe is located in the pipeline and is connected to the reference signal through a series resistance. The probe signal changes as a function of the impedance of the petroleum stream. A circuit measures the changes in the probe signal, compares the changes to the reference signal and derives a water cut value for the petroleum stream based on these measurements.
摘要翻译： 设备通过将探测信号与参考信号进行比较来监测在管道中流动的石油流的切割。 探头位于管道中，并通过串联电阻连接到参考信号。 探头信号随着石油流的阻抗而变化。 电路测量探头信号的变化，将参考信号的变化进行比较，并根据这些测量值得出石油流的切割值。
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公开(公告)号：US4636731A
公开(公告)日：1987-01-13
申请号：US688106
申请日：1984-12-31
申请人： Kerry D. Savage , Percy T. Cox , Hans J. Paap
发明人： Kerry D. Savage , Percy T. Cox , Hans J. Paap
CPC分类号： G01V3/28
摘要： An anisotropic well logging system includes a well logging tool including a first transmitter coil spatially arranged within the well logging tool in a first predetermined manner and a second transmitter coil spatially arranged within the well logging tool in a second predetermined manner which ultimately transmits electromagnetic energy into the formation at a frequency which enables electromagnetic energy to propagate through the surrounding earth formation. A first pair of receiver coils spaced a predetermined distance from each other and from the first transmitter coil and spatially arranged within the well logging tool in the same manner as the first transmitter coil provides signals in accordance with the received electromagnetic energy. A second pair of receiver coils spatially arranged within the logging tool in the same predetermined manner as the second transmitter coil and spaced a predetermined distance from each other and another predetermined distance from the second transmitter coil provides signals in accordance with the received electromagnetic energy. A control apparatus controls the first and second transmitters so they alternately transmit the electromagnetic energy into the earth formation and also provides a control signal. Processing apparatus responsive to the control signal from the control apparatus provides one output representative of the vertical resistance of the earth formation and a second output representative of the horizontal resistance of the earth formation in accordance with the signals from the four receivers.
摘要翻译： 各向异性测井系统包括测井工具，其包括以第一预定方式空间地布置在测井工具内的第一发射器线圈和以第二预定方式空间地布置在测井工具内的第二发射器线圈，其最终将电磁能量传输到 以能够使电磁能量传播通过周围地层的频率的形成。 以与第一发射器线圈相同的方式与第一发射器线圈间隔预定距离并且在测井工具内空间布置的第一对接收器线圈根据接收的电磁能提供信号。 第二对接收器线圈以与第二发射器线圈相同的预定方式空间地布置在测井工具内，并且彼此隔开预定的距离，并且与第二发射器线圈的另外的预定距离根据所接收的电磁能量提供信号。 控制装置控制第一和第二发射器，使得它们交替地将电磁能量发射到地层中并且还提供控制信号。 响应于来自控制装置的控制信号的处理装置根据来自四个接收器的信号提供表示地层垂直电阻的一个输出和代表地层的水平电阻的第二输出。
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