公开(公告)号：US4169979A

公开(公告)日：1979-10-02

申请号：US815964

申请日：1977-07-15

Applicant: Dan M. Arnold ,  Obie M. Langford ,  Hans J. Paap ,  Hubert D. Scott

Inventor： Dan M. Arnold ,  Obie M. Langford ,  Hans J. Paap ,  Hubert D. Scott

IPC: E21B47/10 ,  G01F1/704 ,  G01V5/00

CPC classification number: G01F1/7042 ,  E21B47/1015

Abstract: Formation fluid is activated by a neutron source. A cluster of three gamma ray detectors provides count rate data with the count values varying among the three detectors as dictated by the geometry of the cluster and the angle of displacement of the activated fluid between the time of neutron bombardment and that of gamma ray detection. Measurements at different time intervals following the activation of the fluid may also be interpreted in terms of the speed of horizontal fluid flow past the borehole.

公开(公告)号：US3949232A

公开(公告)日：1976-04-06

申请号：US510661

申请日：1974-09-30

Applicant: Obie M. Langford ,  Harold E. Peelman

Inventor： Obie M. Langford ,  Harold E. Peelman

IPC: G01V5/10 ,  H05H3/06 ,  G21G4/02

CPC classification number: H05H3/06 ,  G01V5/10

Abstract: A well-logging sonde employes a neutron generator. It has a high-voltage supply for the target of the neutron generator tube. The sonde includes an insulated high-voltage conductor for connecting the supply to target, and there is a metallic ring supported on the insulation surrounding the conductor. The ring and conductor form a capacitor that is connected to a circuit for controlling the deenergization of the high-voltage supply if an arc occurs.

Abstract translation: 测井仪采用中子发生器。 它具有用于中子发生器管的目标的高压电源。 探头包括用于将电源连接到目标的绝缘高压导体，并且在导体周围的绝缘体上具有支撑的金属环。 环和导体形成电容器，其连接到用于控制电弧发生的高压电源的断电的电路。

公开(公告)号：US3969630A

公开(公告)日：1976-07-13

申请号：US516340

申请日：1974-10-21

Applicant: Obie M. Langford ,  Michael Bagnasco

Inventor： Obie M. Langford ,  Michael Bagnasco

IPC: G01V5/10 ,  G21F3/00 ,  G01V5/00

CPC classification number: G21F3/00 ,  G01V5/101

Abstract: Disclosed is a method and apparatus for providing pathways for electrical conductors and conduits through radiation shielding without effectively diminishing the degree of shielding. A pathway is formed by providing a helical groove on the surface of a cylindrical shielding member which is fitted with close tolerance inside a tubular housing. Specific embodiments provide for the passage of electrical conductors through a cylinder of shielding material positioned within a well logging sonde between a radiation source and a radiation detector. One or more grooves may be provided in the shielding member. The shielding member may be constructed of two or more individual, coaxially aligned, abutting, cylindrical shielding submembers. The shielding submembers making up a shielding member may be of the same or different shielding material.

Abstract translation: 公开了一种用于通过辐射屏蔽提供电导体和导管的通路的方法和装置，而不会有效地减小屏蔽程度。 通过在圆柱形屏蔽构件的表面上设置螺旋槽形成通道，该圆柱形屏蔽构件在管状壳体内装配有紧公差。 具体实施例提供电导体通过位于辐射源和辐射检测器之间的测井探头内的屏蔽材料的气缸。 可以在屏蔽构件中设置一个或多个凹槽。 屏蔽构件可以由两个或更多个单独的，同轴对准的邻接的圆柱形屏蔽子构件构成。 构成屏蔽构件的屏蔽构件可以具有相同或不同的屏蔽材料。

公开(公告)号：US4320446A

公开(公告)日：1982-03-16

申请号：US146738

申请日：1980-05-05

Applicant: Obie M. Langford ,  Albert P. Richter, Jr.

Inventor： Obie M. Langford ,  Albert P. Richter, Jr.

IPC: H01G4/40 ,  H01L25/10 ,  H02M7/10

CPC classification number: H01L25/10 ,  H01G4/40 ,  H02M7/106 ,  H05H5/045 ,  H01L2924/0002

Abstract: A Cockcroft-Walton voltage multiplying circuit constructed for use in a slim hole well logging tool includes a plurality of capacitor packages having a first capacitor package, adapted to receive an input voltage, and a last capacitor package. A plurality of high voltage rectifier packages of which each rectifier package, except for a last rectifier package, are physically as well as electrically interconnected with two capacitor packages. The last rectifier package is connected to the last capacitor package so that all of the capacitor packages and all of the rectifier packages form an inline rigid body. Output terminals are connected to the last rectifier package for providing the high voltage developed by the capacitor packages and the rectifier packages in response to a received input voltage.

Abstract translation: 构造用于细孔测井工具的Cockcroft-Walton电压倍增电路包括具有适于接收输入电压的第一电容器封装的多个电容器封装以及最后一个电容器封装。 除了最后一个整流器封装之外，每个整流器封装的多个高压整流器封装在物理上以及与两个电容器封装件电互连。 最后一个整流器封装连接到最后一个电容器封装，使得所有电容器封装和所有整流器封装形成一个内联的刚体。 输出端子连接到最后一个整流器封装，用于响应于接收的输入电压提供由电容器封装和整流器封装开发的高电压。

公开(公告)号：US4209695A

公开(公告)日：1980-06-24

申请号：US872981

申请日：1978-01-27

Applicant: Dan M. Arnold ,  Harold E. Peelman ,  Obie M. Langford ,  Hans J. Paap ,  Irwin R. Supernaw

Inventor： Dan M. Arnold ,  Harold E. Peelman ,  Obie M. Langford ,  Hans J. Paap ,  Irwin R. Supernaw

IPC: G01N23/222 ,  G01V5/00

CPC classification number: G01N23/222 ,  G01N2223/0745 ,  G01N2223/616 ,  G01N2223/637 ,  G01N2223/652

Abstract: Fluid in a pipeline or container at a refinery or at any of various petroleum producing operations is bombarded with neutrons, and high energy gamma rays resulting from capture of thermal neutrons are detected. The spectra of the detected gamma rays are then analyzed to determine the concentration of the element chlorine, which gives an indication of the presence and concentration of salt water in the fluid. The concentration of sulfur and the percentage gas in the fluid may be determined simultaneously with the concentration of chlorine.

Abstract translation: 在炼油厂或各种石油生产操作中的管道或容器中的流体被中子轰击，并且检测到由捕获热中子产生的高能γ射线。 然后分析检测到的γ射线的光谱，以确定元素氯的浓度，其给出流体中盐水的存在和浓度的指示。 可以与氯的浓度同时测定硫的浓度和流体中的气体百分比。

公开(公告)号：US4028546A

公开(公告)日：1977-06-07

申请号：US628172

申请日：1975-11-03

Applicant: Harold E. Peelman ,  Obie M. Langford

Inventor： Harold E. Peelman ,  Obie M. Langford

IPC: E21B47/10 ,  G01F1/64 ,  G01F1/704 ,  G01V5/10 ,  G01V5/00

CPC classification number: G01F1/7042 ,  E21B47/1015 ,  G01F1/64 ,  G01V5/101

Abstract: Equipment for the detection of undesired behind casing water flow in a producing well is provided. A well logging sonde having a modular fluid tight structure is disclosed. Basically, three modules which when joined together form a fluid tight assemblage comprise the sonde. A first module houses a 14 MEV neutron generator and a 125 kilovolt high voltage power supply for operating the neutron generator. A second module houses dual spaced gamma ray detectors for detecting characteristic gamma rays from the decay of radioactive nitrogen 16 at two different longitudinal distances from the neutron source. A third module houses control electronics and data transmission circuits for controlling the neutron generation and receiving detected signals from dual gamma ray detectors and for transmitting data to the surface from the sonde. The modules are constructed so that they may be assembled with the neutron generator either above or below the dual detectors while maintaining the same spacing distances from the generator to the detectors. Surface instrumentation for receiving and interpreting the gamma ray measurements are also provided.

Abstract translation: 提供了用于检测生产井中不期望的套管水流的设备。 公开了一种具有模块化流体密封结构的测井仪。 基本上，连接在一起形成流体密封组合的三个模块构成探头。 第一个模块容纳14 MEV中子发生器和一个用于操作中子发生器的125千伏高压电源。 第二模块容纳双重间隔的γ射线检测器，用于从与中子源两个不同纵向距离处的放射性氮16的衰变中检测特征γ射线。 第三模块容纳用于控制中子产生和接收来自双伽马射线检测器的检测信号并用于从探头传送数据到表面的控制电子和数据传输电路。 这些模块被构造成使得它们可以在双重探测器的上方或下方与中子发生器组装，同时保持与发生器到检测器相同的间隔距离。 还提供了用于接收和解释伽马射线测量的表面仪器。

公开(公告)号：US3973131A

公开(公告)日：1976-08-03

申请号：US536532

申请日：1974-12-26

Applicant: Steve G. Malone ,  Obie M. Langford

Inventor： Steve G. Malone ,  Obie M. Langford

IPC: G01V5/04 ,  E21B47/12 ,  G01N23/221 ,  G01N33/24 ,  G01V5/10 ,  G21G4/02 ,  G01V5/00

CPC classification number: G01V5/102 ,  E21B47/12

Abstract: Disclosed is a system for nuclear well logging in which neutron pulse time duration for a high energy neutron generator and the frequency of pulses are selected downhole in the tool by use of a coded signal transmitted by the cable from the earth's surface. Separate channel systems are provided in the downhole tool for desired neutron pulse width and repetition frequency and are operated by a decoder system. Additionally, the accelerator voltage on a high energy neutron generator is controlled by a downhole switching system to selectively obtain different neutron output in response to coded signal transmissions. Moreover, provisions for obtaining different timing pulses to control gates for sampling signals generated in the tool are provided.

Abstract translation: 公开了一种用于核测井的系统，其中通过使用来自地球表面的电缆传输的编码信号，在高能中子发生器的中子脉冲持续时间和脉冲频率在工具中的井下选择。 在井下工具中提供单独的通道系统，用于所需的中子脉冲宽度和重复频率，并由解码器系统操作。 此外，高能中子发生器上的加速器电压由井下开关系统控制，以响应于编码信号传输选择性地获得不同的中子输出。 此外，提供了用于获得用于在工具中生成的采样信号的控制门的不同定时脉冲的规定。

公开(公告)号：US4092545A

公开(公告)日：1978-05-30

申请号：US721616

申请日：1976-09-08

Applicant: Obie M. Langford ,  Harold E. Peelman

Inventor： Obie M. Langford ,  Harold E. Peelman

IPC: G01V5/04 ,  G01V5/00 ,  H01J1/13 ,  H02M3/338 ,  H05H3/06 ,  H05H5/02 ,  G21G4/02

CPC classification number: H01J1/135 ,  H02M3/3384 ,  H05H3/06

Abstract: Means and method for energizing and regulating a neutron generator tube having a target, an ion source and a replenisher includes providing a negative high voltage to the target and monitoring the target current. A constant current from a constant current source is divided into a shunt current and a replenisher current in accordance with the target current. The replenisher current is applied to the replenisher in a neutron generator tube so as to control the neutron output in accordance with the target current.

Abstract translation: 用于激励和调节具有靶，离子源和补充器的中子发生器管的装置和方法包括向目标提供负高电压并监测目标电流。 来自恒定电流源的恒定电流根据目标电流被分成分流电流和补充电流。 补充液电流被施加到中子发生器管中的补充器，以便根据目标电流控制中子输出。