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1.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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公开(公告)号：US4810970A
公开(公告)日：1989-03-07
申请号：US945438
申请日：1986-12-22
摘要： An electromagnetic energy well logging system and method includes transmitting electromagnetic energy substantially at a frequency of 4 MHz into an earth formation from a borehold traversing the earth formation. The true resistivity of an oil-based flushed zone of the earth formation is derived in accordance with the transmitted electromagnetic energy after it is passed through at least a portion of the oil-based flushed zone.
摘要翻译： 电磁能量测井系统和方法包括将大体上以4MHz的频率的电磁能量从穿过地层的钻孔传播到地层中。 根据透过的电磁能通过至少一部分油基冲洗区，得到地层油基冲洗区的真实电阻率。
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3.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：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：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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7.发明授权Method of standard dielectric water cut measurement with small gas fraction present 失效标准电介质水切割测量方法与小气体部分存在
公开(公告)号：US5563518A
公开(公告)日：1996-10-08
申请号：US270353
申请日：1994-07-05
CPC分类号： G01N27/223 , G01N33/2823
摘要： The gas fraction and the slip velocity are proportional to the difference in dielectric readings taken in a vertically upward flowing stream of oil/water/gas and in a vertically downwardly flowing stream of the same mixture. Actual water cuts are obtained by appropriately adjusting the dielectric water cut readings.
摘要翻译： 气体分数和滑移速度与在油/水/气体的垂直向上流动的流中以及在相同混合物的垂直向下流动的流中获得的介电读数的差异成比例。 通过适当调整介电水分读数可获得实际的水切割。
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8.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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公开(公告)号：US4495805A
公开(公告)日：1985-01-29
申请号：US475590
申请日：1983-03-15
CPC分类号： E21B47/1015 , E21B49/008
摘要： A method of determining the permeability of a particular stratum in an earth formation traversed by a borehole includes injecting a liquid into the borehole at a first pressure thereby causing liquid flow into the stratum. A first flow rate of the liquid is determined at the first pressure. The pressure of the liquid being injected into the borehole is then changed to a second pressure level and a second flow rate of the liquid flowing into the stratum is determined at the second pressure. An indication of the permeability of the stratum is then derived in accordance with the two pressures, the two flow rates and known characteristics of the stratum.
摘要翻译： 确定由钻孔穿过的地层中的特定层的渗透性的方法包括以第一压力将液体注入钻孔中，从而使液体流入层中。 在第一压力下确定液体的第一流量。 然后将注入井眼的液体的压力改变到第二压力水平，并且在第二压力下确定流入层中的液体的第二流量。 然后根据两个压力，两个流速和层的已知特征，导出层的渗透性的指示。
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10.发明授权
公开(公告)号：US4076980A
公开(公告)日：1978-02-28
申请号：US735670
申请日：1976-10-26
CPC分类号： G01V5/101
摘要： Oxygen in a borehole fluid in the vicinity of a reference region, such as an earth formation of known fluid permeability, is activated with a logging instrument by being bombarded with neutrons of 14 MEV energy level to form the unstable isotope nitrogen 16 giving rise to gamma radiation. Flow of the activated fluid is then caused by an electrohydraulic flow generator which forms an intense pressure pulse in the fluid. A gamma ray detector in the logging instrument senses the amount of flow of the activated fluid within the borehole in the reference region. The logging instrument is then moved to a formation whose liquid permeability is to be tested. Borehole fluid opposite the formation to be tested is activated by neutron bombardment, again giving rise to gamma radiation, and fluid flow in the formation under test is caused by the electrohydraulic flow generator. The gamma ray detector reading of activated fluid flow in the borehole opposite the formation under test, when compared with the flow reading in the borehole opposite the reference region, is a measure of relative fluid permeability in the formation being tested.
摘要翻译： 在参考区域附近的井眼流体中的氧气，例如已知流体渗透性的地球形成，通过用14MEV能级的中子轰击以测井仪器来激活，以形成不稳定的同位素氮16，产生γ 辐射。 活化流体的流动然后由在液体中形成强烈压力脉冲的电动液压发生器引起。 测井仪器中的伽马射线探测器检测参考区域内钻孔内活化流体的流量。 然后将测井仪器移动到要测试其液体渗透性的地层。 与要测试的地层相对的井眼流体由中子轰击激活，再次产生γ辐射，并且被测地层中的流体流由电动液压发生器引起。 与相对于参考区域的钻孔中的流量读数进行比较时，伽马射线探测器读取在与测试地层相对的钻孔中的活化流体流量是测试的地层中相对流体渗透性的量度。
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