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1.发明授权Secondary field dielectric constant and/or resistivity well logging system and method 失效二次场介电常数和/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
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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2.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：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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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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公开(公告)号：US4703278A
公开(公告)日：1987-10-27
申请号：US658928
申请日：1984-10-09
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。
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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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公开(公告)号：US5095758A
公开(公告)日：1992-03-17
申请号：US619621
申请日：1990-11-29
CPC分类号： G01N27/221 , G01F1/74 , G01F15/08 , G01N33/2823
摘要： The present invention is a water cut monitor which includes a settling tank in which a quantity of fluid from a producing well is accumulated. The fluid is removed as a stream of fluid after a predetermined interval from the accumulation of the fluid by the settling tank so as to allow the accumulated fluid to separate into three phases: free water, water-continuous and oil-continuous. The flow rate of the stream of fluid is measured and a corresponding flow rate signal is provided as well as a temperature signal corresponding to a sensed temperature of the stream of fluid. The water cut monitor includes a plurality of electrodes in contact with the fluid. Injection electronics connected to at least one of the electrodes provides an injection voltage and injection current to the fluid stream and also provides signals corresponding to the injection voltage and injection current. A voltage in the fluid stream is measured and a measurement signal provided. A computer determines the water cut of the petroleum stream in accordance with the temperature signal, the injection voltage and injection current signals, the electrical phase angle signal and the measured voltage signal.
摘要翻译： 本发明是一种水切割监视器，其包括沉淀槽，在沉淀槽中积聚来自生产井的流体量。 在流体由沉降槽积聚预定间隔之后，将流体作为流体流除去，以使积聚的流体分离成三相：自由水，水连续和油连续。 测量流体流的流速，并提供相应的流量信号以及对应于流体流的感测温度的温度信号。 切水监视器包括与流体接触的多个电极。 连接到至少一个电极的注入电子器件向流体流提供注入电压和注入电流，并且还提供对应于注入电压和注入电流的信号。 测量流体流中的电压并提供测量信号。 计算机根据温度信号，注射电压和注射电流信号，电相角信号和测量的电压信号来确定石油流的切割。
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公开(公告)号：US4427941A
公开(公告)日：1984-01-24
申请号：US292368
申请日：1981-08-13
CPC分类号： E21B47/122 , E21B47/065 , G01V11/002 , G01V3/28
摘要： A well logging tool adapted for use in a borehole traversing an earth formation includes at least one sensor sensing at least one characteristic of the earth formation. Another sensor senses the ambient temperature and provides a corresponding temperature signal. An output circuit provides a temperature compensated output signal corresponding to the sensed characteristic of the earth formation in accordance with the temperature signal and the characteristic signal.
摘要翻译： 适用于穿过地层的钻孔中的测井工具包括至少一个传感器，其感测地层的至少一个特性。 另一个传感器感测环境温度并提供相应的温度信号。 输出电路根据温度信号和特征信号提供对应于地层形成的感测特性的温度补偿输出信号。
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公开(公告)号：US4250758A
公开(公告)日：1981-02-17
申请号：US972623
申请日：1978-12-22
CPC分类号： E21B44/00
摘要： A system applicable to rotary drilling. It includes a torque meter that measures dynamic torque while drilling. The system averages the time period of individual oscillations in the torque, for a given number of such oscillations. It indicates the length of such average time numerically. Consequently, the probable cause of the oscillations may be inferred.
摘要翻译： 适用于旋转钻孔的系统。 它包括一个在钻孔时测量动态转矩的扭矩计。 对于给定数量的这种振荡，系统对扭矩中的各个振荡的时间周期进行平均。 它表示数字上的平均时间的长度。 因此，可以推断振荡的可能原因。
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公开(公告)号：US4348671A
公开(公告)日：1982-09-07
申请号：US210881
申请日：1980-11-28
申请人： Theodore W. Nussbaum
发明人： Theodore W. Nussbaum
摘要： A dual spectra well logging system includes a well logging tool which is adapted to pass through a bore hole in an earth formation. The well logging tool includes at least two sensors which sense at least one condition of the earth formation and provides corresponding pulse signals. A circuit connected to the sensors provides a combined pulse signal wherein the pulses of the pulse signal from one sensor has one polarity and the pulses of the pulse signal from the other sensor has pulses of an opposite polarity. A circuit applies the combined pulse signal to a well logging cable which conducts the combined pulse signal to the surface of the earth formation. Surface apparatus includes a network connected to the cable which provides control signals in accordance with the polarity of the pulses in the combined pulse signal. A network connected to the cable inverts the combined pulse signal and provides a combined pulse signal and an inverted combined pulse signal. A first switching network receiving the combined pulse signal passes the pulses derived from the pulses of the one polarity in acccordance with the control signals to provide a first pulse signal while a second switching network receiving the inverted combined pulse signal passes the pulses derived from the pulses of the opposite polarity in accordance with the control signals to provide a second pulse signal. An output network processes the two pulse signals to provide an indication of the earth's condition in accordance with the processed pulse signals.
摘要翻译： 双谱测井系统包括测井工具，其适于穿过地层中的钻孔。 测井工具包括至少两个传感器，其感测地球形成的至少一个条件并提供对应的脉冲信号。 连接到传感器的电路提供组合脉冲信号，其中来自一个传感器的脉冲信号的脉冲具有一个极性，并且来自另一传感器的脉冲信号的脉冲具有相反极性的脉冲。 电路将组合的脉冲信号施加到测井电缆，其将组合的脉冲信号传导到地层的表面。 表面装置包括连接到电缆的网络，其根据组合的脉冲信号中的脉冲的极性提供控制信号。 连接到电缆的网络将组合的脉冲信号反相，并提供组合的脉冲信号和反相的组合脉冲信号。 接收组合脉冲信号的第一交换网络根据控制信号传递从一极性的脉冲导出的脉冲，以提供第一脉冲信号，而接收反相的组合脉冲信号的第二交换网络通过从脉冲导出的脉冲 根据控制信号产生相反极性的第二脉冲信号。 输出网络处理两个脉冲信号以根据处理的脉冲信号提供地球状况的指示。
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