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1. 发明授权

US4609873A Dielectric well logging system with at least three transmitter coils and at least two receiver coils for determining resistivity and dielectric constant of a subsurface formation adjacent a fluid invaded zone of the formation 失效
标题翻译：具有至少三个发射器线圈和至少两个接收器线圈的介电测井系统，用于确定邻近地层的流体侵入区域的地下地层的电阻率和介电常数
公开(公告)号：US4609873A
公开(公告)日：1986-09-02
申请号：US109691
申请日：1980-01-04
申请人： Percy T. Cox , Richard A. Meador , Roland G. Riedesel, Jr. , Kerry D. Savage
发明人： Percy T. Cox , Richard A. Meador , Roland G. Riedesel, Jr. , Kerry D. Savage
IPC分类号： G01V3/28 , G01V3/30 , G01V3/38 , G08C15/06
CPC分类号： G01V3/28
摘要： A dielectric well logging system is provided to determine dielectric constant and resistivity in formations invaded by water to determine oil and water saturations of the formations. Plural transmitters are activated in a time division multiplex manner and sensed by receiver coils. The amplitude ratio and phase difference between the signals sensed by the receiver coils are then used to determine dielectric constant and resistivity which may then be used to determine invasion characteristics.
摘要翻译：提供电介质测井系统以确定由水侵入的地层中的介电常数和电阻率，以确定地层的油和水饱和度。多个发射机以时分多路复用方式激活，并由接收机线圈感测。接收器线圈感测到的信号之间的振幅比和相位差然后用于确定介电常数和电阻率，然后可以用它来确定入侵特性。

2. 发明授权

US4636731A Propagation anisotropic well logging system and method 失效
标题翻译：传播各向异性测井系统及方法
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
IPC分类号： G01V3/28 , G01V3/30
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。

3. 发明授权

US4107597A Electromagnetic wave propagation well logging utilizing multiple phase shift measurement 失效
标题翻译：利用多相移测量的电磁波传播测井
公开(公告)号：US4107597A
公开(公告)日：1978-08-15
申请号：US749845
申请日：1976-12-13
申请人： Richard A. Meador , Larry L. Adams , Percy T. Cox , Larry W. Thompson , James A. Fuchs
发明人： Richard A. Meador , Larry L. Adams , Percy T. Cox , Larry W. Thompson , James A. Fuchs
IPC分类号： G01V3/30 , G01V3/18 , G01V3/12
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。

4. 发明授权

US3993944A Movable oil measurement combining dual radio frequency induction and dual induction laterolog measurements 失效
标题翻译：可移动油测量结合双射频感应和双感应测量
公开(公告)号：US3993944A
公开(公告)日：1976-11-23
申请号：US643421
申请日：1975-12-22
申请人： Richard A. Meador , Percy T. Cox , Larry W. Thompson
发明人： Richard A. Meador , Percy T. Cox , Larry W. Thompson
IPC分类号： G01V3/28 , G01V3/18 , G01V3/10
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。

5. 发明授权

US4012689A Radio frequency resistivity and dielectric constant well logging utilizing phase shift measurement 失效
标题翻译：使用相移测量的射频电阻率和介电常数测井
公开(公告)号：US4012689A
公开(公告)日：1977-03-15
申请号：US517704
申请日：1974-10-24
申请人： Percy T. Cox , Richard A. Meador , Larry W. Thompson
发明人： Percy T. Cox , Richard A. Meador , Larry W. Thompson
IPC分类号： G01V3/28 , G01V3/10 , G01V3/18
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。

6. 发明授权

US4107598A Electromagnetic wave logging system for determining resistivity and dielectric constant of earth formations 失效
标题翻译：用于确定地层电阻率和介电常数的电磁波测井系统
公开(公告)号：US4107598A
公开(公告)日：1978-08-15
申请号：US800500
申请日：1977-05-25
申请人： Richard A. Meador , Larry L. Adams , James A. Fuchs , Percy T. Cox , Larry W. Thompson
发明人： Richard A. Meador , Larry L. Adams , James A. Fuchs , Percy T. Cox , Larry W. Thompson
IPC分类号： G01R27/02 , G01V3/28 , G01V3/18 , G01V3/12
CPC分类号： G01R27/02 , G01V3/28
摘要： A system operating at radio frequencies in the range of 10 MHZ to 60 MHZ is provided for simultaneously determining the resistivity and dielectric constant of earth formations in the vicinity of a well bore. A transmitter coil and two longitudinally spaced receiver coils are provided in the system. Circuit means for measuring the unnormalized amplitude ratio and the relative phase shift of electromagnetic waves at the spaced receiver coils are provided. A relationship is given whereby the formation dielectric constant and resistivity may be obtained from the amplitude ratio and relative phase shift measurements.
摘要翻译：提供了在10MHz至60MHz范围内的射频操作的系统，用于同时确定井眼附近地层的电阻率和介电常数。发射机线圈和两个纵向间隔的接收器线圈设置在系统中。提供用于测量非标准化幅度比和在隔开的接收器线圈处的电磁波的相对相移的电路装置。给出一种关系，由此可以从振幅比和相对相移测量中获得形成介电常数和电阻率。

7. 发明授权

US5070725A Water-cut monitoring means and method 失效
标题翻译：水切割监测手段和方法
公开(公告)号：US5070725A
公开(公告)日：1991-12-10
申请号：US405996
申请日：1989-09-12
申请人： Percy T. Cox , Theodore W. Nussbaum , Charles L. Gray, Jr.
发明人： Percy T. Cox , Theodore W. Nussbaum , Charles L. Gray, Jr.
IPC分类号： G01N27/02 , E21B47/10 , E21B49/08
CPC分类号： E21B49/086 , E21B47/102 , G01F1/74
摘要： Oil well production is often measured by using a settling tank, pump, flowmeter and a water-cut meter. Fluid from a well being tested is allowed to accumulate in the settling tank and, after a predetermined settling time, is pumped through the flowmeter and water-cut meter for gauging. The present invention is an improved water-cut meter which first determines the impedance of the free water pumped from the tank and later determines the impedance of the oil/water emulsion emerging from the tank. The ratio of the emulsion impedance to the free water impedance is proportional to percent water-cut of the fluid during the water-continuous phase. When the emulsion switches to oil-continuous phase, the system utilizes probe impedance for the water-cut determination. Using standard techniques, the water-cut and flow rate signals are then combined to calculate the total oil and water content of the settling tank fluid.

8. 发明授权

US4594551A Method of deep penetration well logging using three receivers 失效
标题翻译：使用三个接收器的深度穿透测井方法
公开(公告)号：US4594551A
公开(公告)日：1986-06-10
申请号：US480641
申请日：1983-03-31
申请人： Percy T. Cox , Wayne F. Warren , Theodore W. Nussbaum
发明人： Percy T. Cox , Wayne F. Warren , Theodore W. Nussbaum
IPC分类号： G01V3/30 , G01V3/10 , G01V3/18
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。

9. 发明授权

US4703278A Well logging disc coil receiving means and method 失效
标题翻译：测井盘盘接收装置及方法
公开(公告)号：US4703278A
公开(公告)日：1987-10-27
申请号：US658928
申请日：1984-10-09
申请人： Theodore W. Nussbaum , Keith R. Tooker , Percy T. Cox
发明人： Theodore W. Nussbaum , Keith R. Tooker , Percy T. Cox
IPC分类号： G01V3/28 , G01V3/26
CPC分类号： G01V3/28
摘要： The present invention is a well logging receiver coil system which includes a coil. The system also includes a variable capacitor connected across the coil to form a resonant circuit tuned to a predetermined frequency. The coil in the presence of an electromagnetic field has a current induced therein representative of the strength of the electromagnetic field. A pick-off circuit is connected to the coil in a predetermined manner and provides a signal representative of the strength of the magnetic component of the electromagnetic field substantially unaffected by the electrical field component of the electromagnetic field.
摘要翻译：本发明是一种测井接收器线圈系统，其包括线圈。该系统还包括连接在线圈两端的可变电容器，以形成调谐到预定频率的谐振电路。存在电磁场的线圈具有代表电磁场强度的电流。拾取电路以预定的方式连接到线圈，并且提供表示电磁场的磁性分量的强度的信号，其基本上不受电磁场的电场分量的影响。

10. 发明授权

US4687995A Secondary field dielectric constant and/or resistivity well logging system and method 失效
标题翻译：二次场介电常数和/或电阻率测井系统及方法
公开(公告)号：US4687995A
公开(公告)日：1987-08-18
申请号：US586465
申请日：1984-03-05
申请人： Wayne F. Warren , Theodore W. Nussbaum , Percy T. Cox , Donald L. Johnson
发明人： Wayne F. Warren , Theodore W. Nussbaum , Percy T. Cox , Donald L. Johnson
IPC分类号： G01V3/28 , G01V3/30 , G01V3/10 , G01V3/18
CPC分类号： G01V3/28
摘要： Apparatus for determining the dielectric constant and/or resistivity of earth formations traversed by a borehole includes a transmitter which transmits electromagnetic energy into the earth formation from a first location in the borehole at a frequency which enables the electromagnetic energy to propagate throughout the surrounding earth formations. Receivers receive electromagnetic energy at two locations in the borehole which are spaced longitudinally from the transmitter provide signals representative of the total electromagnetic fields at the receiver locations. Circuitry determines the dielectric constant and/or resistivity of the formations in accordance with a secondary field ratio and a phase difference derived from the signals provided by the receivers.
摘要翻译：用于确定由钻孔穿过的地层的介电常数和/或电阻率的装置包括一个发射器，该发射器以一定的频率从井眼的第一位置将电磁能传递到地层中，这样能使电磁能量传播到周围的地层。接收器在钻孔中的两个位置处接收电磁能，该位置与发射器纵向间隔开，提供表示接收器位置处的总电磁场的信号。电路根据二次场比和由接收器提供的信号导出的相位差来确定地层的介电常数和/或电阻率。

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