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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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2.发明授权
公开(公告)号：US4774471A
公开(公告)日：1988-09-27
申请号：US929871
申请日：1986-11-13
申请人： Jackie C. Sims , Percy T. Cox , Richard S. Simpson
发明人： Jackie C. Sims , Percy T. Cox , Richard S. Simpson
CPC分类号： G01V3/30
摘要： A well logging system and method for determining the water saturation of an earth formation and the resistivity of the water using complex dielectric constant and formation porosity measurements. Electromagnetic energy is transmitted into the earth formation from a borehole at a frequency lying within the range of frequencies from 10 MHz to 200 MHz. Electromagnetic energies are received at two locations in the borehole. A complex dielectric constant is derived from the received electromagnetic energies. The water resistivity and the water saturation of the earth formation is derived in accordance with the porosity of the earth formation and with the real and imaginary parts of the derived complex dielectric constant.
摘要翻译： 用于确定地层水饱和度的测井系统和方法以及使用复介电常数和地层孔隙度测量的水的电阻率。 电磁能量从位于10MHz至200MHz频率范围内的频率的钻孔传播到地层中。 在钻孔中的两个位置处接收电磁能。 从接收的电磁能导出复介电常数。 地层的水电阻率和水饱和度根据地层的孔隙度和衍生的复介电常数的实部和虚部得到。
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3.发明授权
公开(公告)号：US4730161A
公开(公告)日：1988-03-08
申请号：US910043
申请日：1986-09-22
申请人： Percy T. Cox , Jackie C. Sims , Richard S. Simpson
发明人： Percy T. Cox , Jackie C. Sims , Richard S. Simpson
CPC分类号： G01V3/30
摘要： The present invention is a well logging method for determining the water saturation of an earth formation and the water's resistivity. Electromagnetic energy is transmitted into the earthen formation from a borehole traversing the earth formation. The electromagnetic energy is transmitted at two different frequencies within a range of frequency from 10 MHz to 200 MHz. Electromagnetic energies are received in the borehole from the earth formation. A phase difference and amplitude ratio for each transmitting frequency is derived from the received electromagnetic energy. The water resistivity and water saturation of the earth formation are derived from the derived phase differences and the amplitude ratios.
摘要翻译： 本发明是用于确定地层的水饱和度和水的电阻率的测井方法。 电磁能量从穿过地层的钻孔传播到土层中。 电磁能量在10MHz至200MHz的频率范围内以两个不同的频率传输。 电磁能量从地层接收在钻孔中。 从接收到的电磁能导出每个发射频率的相位差和振幅比。 地层的水电阻率和水饱和度来源于导出的相位差和振幅比。
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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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5.发明授权Deep penetration well logging system and method using secondary electromagnetic fields 失效深度穿透测井系统和使用次级电磁场的方法
公开(公告)号：US4622518A
公开(公告)日：1986-11-11
申请号：US579316
申请日：1984-04-06
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 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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6.发明授权Small hole well logging sonde and system with transmitter and receiver assemblies 失效小孔测井探头和带发射器和接收器组件的系统
公开(公告)号：US4401947A
公开(公告)日：1983-08-30
申请号：US191095
申请日：1980-09-26
申请人： Percy T. Cox
发明人： Percy T. Cox
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： A well logging sonde has an outer diameter of 1-11/16 inches or less and includes a transmitter coil and at least two receiver coils. The coils are contained in a coil housing. A transmitter circuit provides a signal for energizing the transmitter coil to develop an electromagnetic field in an earth formation. A transmitter case contains the transmitter circuit and is mechanically connected to the coil housing so that the transmitter provides the signal to the transmitter coil which develops the corresponding electromagnetic field in the earth formation. A receiver circuit receives signals from the receiver coils resulting from the reception of electromagnetic energy from the electromagnetic field after passage through the earth formation. The receiver circuit provides a signal representative of at least one characteristic of the earth formation in accordance with the signals from the receiver coils. The receiver circuit is housed in a receiver case which is mechanically connected to the coil housing in a manner so that the receiver coils provide their signals to the receiver means. A cable connector is mechanically connected to a well logging cable so as to electrically connect the receiver circuit to at least one conductor in the well logging cable.
摘要翻译： 测井探头具有1-11 / 16英寸或更小的外径，并且包括发射器线圈和至少两个接收器线圈。 线圈包含在线圈壳体中。 发射机电路提供用于激励发射器线圈以在地层中形成电磁场的信号。 发射机壳体包含发射机电路并且机械地连接到线圈壳体，使得发射器向发射器线圈提供信号，该发射器线圈在地层中形成相应的电磁场。 接收器电路接收来自接收线圈的信号，该信号是在通过地层之后从电磁场接收电磁能产生的。 接收器电路根据来自接收器线圈的信号提供表示地层形成的至少一个特征的信号。 接收器电路被容纳在接收器壳体中，其以与接收器线圈将其信号提供给接收器装置的方式机械连接到线圈壳体。 电缆连接器机械地连接到测井电缆，以将接收器电路电连接到测井电缆中的至少一个导体。
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7.发明授权
公开(公告)号：US4107598A
公开(公告)日：1978-08-15
申请号：US800500
申请日：1977-05-25
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。
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公开(公告)号：US5070725A
公开(公告)日：1991-12-10
申请号：US405996
申请日：1989-09-12
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.
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9.发明授权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
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。
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公开(公告)号：US4594551A
公开(公告)日：1986-06-10
申请号：US480641
申请日：1983-03-31
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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