公开(公告)号：US4458524A

公开(公告)日：1984-07-10

申请号：US335304

申请日：1981-12-28

申请人： Richard A. Meador ,  Hans J. Paap

发明人： Richard A. Meador ,  Hans J. Paap

IPC分类号： G01N27/22 ,  G01N33/28 ,  G01N33/22

CPC分类号： G01N27/221 ,  G01N33/2823

摘要： A crude oil production stream analyzer includes a device which measures the dielectric constant of the crude oil production stream and provides a signal corresponding thereto. A densitometer provides a density signal representative of the density of the crude oil production stream. At least one constituent of the crude oil production stream is determined in accordance with the dielectric constant signal and the density signal and the temperature of the crude oil production stream which is sensed by a temperature sensor.

摘要翻译： 原油生产流分析仪包括测量原油生产流的介电常数并提供与其对应的信号的装置。 密度计提供表示原油生产流的密度的密度信号。 根据由温度传感器感测的原油生产流的介电常数信号和密度信号和温度来确定原油生产流的至少一个成分。

公开(公告)号：US4352288A

公开(公告)日：1982-10-05

申请号：US171766

申请日：1980-07-24

申请人： Hans J. Paap ,  Richard A. Meador ,  Dan M. Arnold

发明人： Hans J. Paap ,  Richard A. Meador ,  Dan M. Arnold

IPC分类号： G01N33/28 ,  G01R27/22 ,  G01N33/26

CPC分类号： G01R27/22 ,  G01N33/2835

摘要： The salt content of a fluid in a pipeline or container in petroleum producing or refining operations is determined by obtaining a measure of water cut of an oil-water-free gas fluid mixture. The conductivity of the fluid is measured by radio frequency (RF) induction techniques, while the density of the fluid is measured and related to the liquid phase fraction of the fluid using gamma radiation techniques. The conductivity and liquid phase fraction are then used to determine salt content of the liquid phase.

摘要翻译： 在石油生产或精炼操作中的管道或容器中的流体的盐含量通过获得无油水的气体流体混合物的水切割的量度来确定。 通过射频（RF）感应技术测量流体的电导率，而使用γ辐射技术测量流体的密度并与流体的液相分数相关。 然后使用电导率和液相分数来确定液相的盐含量。

公开(公告)号：US06483310B1

公开(公告)日：2002-11-19

申请号：US09690133

申请日：2000-10-17

申请人： Richard A. Meador

发明人： Richard A. Meador

IPC分类号： G01V330

CPC分类号： G01V3/28 ,  G01V3/30

摘要： A sonde is movable lengthwise in and relative to tubular structure such as a drill collar; slits extend through the tubular structure; and antennae coils on the sonde come into registration with the slits, for transmitting electromagnetic energy into the underground formation via certain slits, and for receiving such transmitted energy back through other of the slits, for processing.

摘要翻译： 探测器可以纵向移动并相对于诸如钻铤的管状结构移动; 狭缝延伸穿过管状结构; 并且探头上的天线线圈与狭缝对准，用于通过某些狭缝将电磁能传递到地下地层中，并将这种传输的能量通过其他狭缝接收，以进行处理。

公开(公告)号：US4536713A

公开(公告)日：1985-08-20

申请号：US471879

申请日：1983-03-03

申请人： Mark H. Davis ,  Richard A. Meador ,  Macmillan M. Wisler

发明人： Mark H. Davis ,  Richard A. Meador ,  Macmillan M. Wisler

IPC分类号： E21B49/00 ,  G01N27/02 ,  G01N27/74 ,  G01V3/10 ,  G01V3/26

CPC分类号： E21B49/005 ,  G01N27/023 ,  G01N27/74 ,  G01V3/102

摘要： A high permeability ferrite core, which includes a gap between adjacent ends thereof, is combined with a magnetic coil encircling the core, and is located in a sub positioned in the drill string just above the drill bit of a borehole drilling rig. The core is positioned so that the gap thereof lies across a recess region formed in the outer wall of the sub. Drilling fluids flow along the outer surface of the sub on the return path from the drill bit to the mud pits located at the surface of the borehole. A constant current, or voltage, at a frequency within the range of 20 KHz-20 MHz is applied to the terminals of the coil encircling the core and the eddy currents developed in the gap region produce a measurable back emf at the coil terminals. The current produced by this emf voltage is indicative of the resistivity of the drilling fluid within the recess region in the wall of the sub and the fluctuations of the voltage accurately follow the variations in drilling fluid resistivity.

摘要翻译： 包括其相邻端之间的间隙的高磁导率铁氧体磁芯与环绕磁芯的磁性线圈组合，并且位于位于钻孔钻柱的位于钻孔钻机的钻头上方的钻柱中的子系统中。 芯部定位成使得其间隙跨越形成在子的外壁中的凹部区域。 钻井液体沿着从钻头返回路径的子表面流到位于钻孔表面的泥浆坑。 在20KHz-20MHz的频率范围内的恒定电流或电压被施加到环绕磁芯的线圈的端子上，并且在间隙区域中产生的涡流在线圈端子处产生可测量的反电动势。 由该电动势电压产生的电流表示在子壁的凹陷区域内的钻井流体的电阻率，并且电压的波动准确地跟随钻井液电阻率的变化。

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。

公开(公告)号：US3982176A

公开(公告)日：1976-09-21

申请号：US531562

申请日：1974-12-11

申请人： Richard A. Meador

发明人： Richard A. Meador

IPC分类号： G01V3/30 ,  G01V3/10 ,  G01V3/18

CPC分类号： G01V3/30

摘要： A well logging system is provided which simultaneously employs a conventional deep induction log and a radio frequency dielectric log to differentiate similar high resistivity fresh water and oil prospective zones. A 16 megahertz radio frequency dielectric induction logging system which is responsive to both conductivity and permittivity of the earth derives a signal primarily related to both of these properties. A conventional 20 kilohertz deep induction system is used to derive a signal which is primarily a function of conductivity alone. When combined in accordance with predetermined relationships according to the invention the two measurements can be used to find oil prospective zones.

摘要翻译： 提供测井系统，其同时采用传统的深感应测井和射频电介质测井，以区分类似的高电阻率的淡水和油前景区。 对地球的电导率和介电常数都有响应的16兆赫兹射频介电感应测井系统产生了与这两个特性相关的信号。 常规的20千赫深感应系统用于导出主要仅仅是导电性的函数的信号。 当根据本发明的预定关系组合时，可以使用两个测量来查找油前景区域。

公开(公告)号：US5081419A

公开(公告)日：1992-01-14

申请号：US697524

申请日：1991-04-29

申请人： Richard A. Meador ,  James E. Meisner ,  Ronald A. Hall ,  Larry W. Thompson ,  Edward S. Mumby

发明人： Richard A. Meador ,  James E. Meisner ,  Ronald A. Hall ,  Larry W. Thompson ,  Edward S. Mumby

IPC分类号： G01V3/28 ,  G01V3/30

CPC分类号： G01V3/28 ,  G01V3/30

摘要： A well logging apparatus and method for measuring the resistivity of the formation surrounding a borehole is disclosed. The invention provides two transmitting antennas arranged around a housing means or drill collar in spaced relation from one another. A transmitting circuit alternately supplies an oscillating drive signal to each transmitting antenna with a sufficiently high frequency such that one and then the other of the transmitting antennas radiates an electromagnetic wave signal which propagates through the formation. Two receiving antennas are located equally spaced between the transmitting antennas to produce pick-up signals from the electromagnetic wave propagating through the formation. Each receiving antenna includes a single turn coil connected in series with a capacitor to provide a reduced impedance circuit to resonate in the frequency region embracing the oscillating drive signal. Receive antenna circuitry responsive to induced alternating current in the coil produces a signal indicative of the formation parameter under study. The method of positioning two series resonant single turn receiving antennas tuned to the oscillating drive frequency and alternately coupling an electrical drive signal to a pair of transmitters spaced equally on each side of the receiving antennas allows receiving signals which are self-cancelling for system induced effects.

摘要翻译： 公开了用于测量围绕钻孔的地层的电阻率的测井装置和方法。 本发明提供了两个彼此间隔开的布置在壳体装置或钻铤周围的发射天线。 发射电路以足够高的频率向每个发射天线交替地提供振荡驱动信号，使得发射天线中的一个发射天线和另一个发射天线辐射通过地层传播的电磁波信号。 两个接收天线位于发射天线之间的距离相等的距离处，以产生从电磁波传播通过地层的拾取信号。 每个接收天线包括与电容器串联连接的单匝线圈，以提供减小的阻抗电路以在包含振荡驱动信号的频率区域中谐振。 响应于线圈中的感应交流电的接收天线电路产生指示正在研究的地层参数的信号。 将调谐到振荡驱动频率的两个串联谐振单匝接收天线定位并将电驱动信号交替地耦合到在接收天线的每一侧上均匀隔开的一对发射机的方法允许接收对于系统感应效应而自消除的信号 。

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。

公开(公告)号：US4451789A

公开(公告)日：1984-05-29

申请号：US306209

申请日：1981-09-28

申请人： Richard A. Meador

发明人： Richard A. Meador

IPC分类号： G01V3/30

CPC分类号： G01V3/30

摘要： A wireline logging system for measuring formation resistivity includes a longitudinal housing having three transmitters and three receivers arranged at measured distances on the housing, with about four feet between the outermost ends of the array. The transmitters are operated at three different frequencies, with each receiver receiving all three frequencies. The output of each receiver is the three received frequencies, which is amplified and fed to a mixer. A local oscillator frequency is also fed to each mixer. The output from each mixer of the three received frequencies mixed with a local frequency is passed through a filter to output one of the three received signals at a lower frequency. The frequency mix is arranged so that the output of each of the filters is at a common frequency. The filtered outputs from pairs of the filters are then passed to phase comparators and/or amplitude ratio determining devices to provide signals indicative of formation resistivity which are then passed to the surface on the wireline.

摘要翻译： 用于测量地层电阻率的电缆测井系统包括具有三个发射器和三个接收器的纵向壳体，三个发射器和三个接收器布置在壳体上的测量距离处，在阵列的最外端之间约四英尺。 发射机以三种不同的频率工作，每个接收机接收三个频率。 每个接收机的输出是三个接收的频率，其被放大并馈送到混频器。 本地振荡器频率也被馈送到每个混频器。 来自与本地频率混合的三个接收频率的每个混频器的输出通过滤波器以较低频率输出三个接收信号中的一个。 频率混合被布置成使得每个滤波器的输出处于共同的频率。 然后将滤波器对的滤波后的输出传递给相位比较器和/或幅度比确定装置，以提供指示地层电阻率的信号，然后将其传递到有线线路上的表面。

公开(公告)号：US4019126A

公开(公告)日：1977-04-19

申请号：US459742

申请日：1974-04-10

申请人： Richard A. Meador

发明人： Richard A. Meador

IPC分类号： E21B47/026 ,  G01V3/28 ,  G01V3/08 ,  G01V3/18

CPC分类号： G01V3/28 ,  E21B47/026

摘要： A dipmeter in a well logging tool includes conventional type circuitry which senses the angle of inclination of the logging tool and an azimuth angle. The dipmeter also includes a non-conventional type bed detection sub-system. The bed detection sub-system includes at least three radio frequency oscillators having their coils mounted on pads of the logging tool. As the logging tool moves through the borehole, the electrical current passing through the coils on the pads causes lines of flux to circulate through the earth formation. Eddy currents are developed for each group of fluxlines created by a coil. As the earth formation changes, the eddy current changes accordingly causing a grid current in the oscillator to change. Portion of the grid currents are transmitted uphole and are recorded so that the interface between the types of earth's formation may be recorded with its relationship to the particular borehole and thus used to determine the dip of different earth formation beds.

摘要翻译： 在测井工具中的一个测流计包括常规的类型电路，其感测测井工具的倾斜角度和方位角。 该测流计还包括非常规型床检测子系统。 床检测子系统包括至少三个射频振荡器，其具有安装在测井工具的焊盘上的线圈。 当测井工具通过钻孔移动时，通过垫上的线圈的电流使得线束通过地层循环。 对于由线圈产生的每组磁通线，开发涡流。 随着地层变化，涡流变化相应地导致振荡器中的电网电流发生变化。 电网电流的一部分在井下传播并被记录，使得地球形成类型之间的界面可以与其与特定钻孔的关系记录下来，从而用于确定不同地层的倾角。