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    Resolution of through tubing fluid flow and behind casing fluid flow in multiple completion wells
    41.
    发明授权
    Resolution of through tubing fluid flow and behind casing fluid flow in multiple completion wells 失效
    在多个完井中通过管道流体流动和套管流体流动后的分辨率

    公开(公告)号：US4047028A

    公开(公告)日：1977-09-06

    申请号：US628173

    申请日：1975-11-03

    申请人： Dan M. Arnold

    发明人： Dan M. Arnold

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

    CPC分类号： E21B47/1015 ,  G01F1/7042 ,  G01V5/101

    摘要： A method is provided for resolving undesired fluid flow in cement channels behind casing in one producing zone of a multi zone completion well operating on gas lift from the fluid flow from lower producing zones in the same well which is contained in production tubing passing through the producing zone being investigated. Gamma rays which are characteristic of the decay of the unstable isotope nitrogen 16 produced by activation of elemental oxygen nuclei comprising the molecular structure of both the tubing fluid flow and the undesired fluid flow are detected in at least two energy bonds at two longitudinally spaced detectors in a well borehole. By appropriately combining the four count rate signals so producing according to predetermined relationships the two fluid flow components in the same direction may be uniquely distinguished on the basis of their differing distances from the gamma ray detectors.

    摘要翻译： 提供了一种方法，用于解决来自同一井中较低生产区的流体流动的多区完井的一个生产区内的水泥通道中不期望的流体流动，该生产区包含在通过生产 正在调查。 通过激活包含管道流体流和不需要的流体流的分子结构的元素氧核产生的不稳定同位素氮16的衰变的特征的伽马射线在两个纵向间隔的检测器处的​​至少两个能量键中被检测 一个井眼。 通过适当地组合根据预定关系产生的四个计数率信号，可以基于它们与伽马射线检测器的不同距离来唯一地区分相同方向上的两个流体流动分量。

    Behind casing water flow detection using pulsed neutron oxygen activation
    42.
    发明授权
    Behind casing water flow detection using pulsed neutron oxygen activation 失效
    采用脉冲中子氧激活后套管水流检测

    公开(公告)号：US4035640A

    公开(公告)日：1977-07-12

    申请号：US628168

    申请日：1975-11-03

    申请人： Dan M. Arnold ,  Hans J. Paap ,  Harold E. Peelman

    发明人： Dan M. Arnold ,  Hans J. Paap ,  Harold E. Peelman

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

    CPC分类号： G01V5/101 ,  E21B47/1015 ,  G01F1/7042

    摘要： Measurement of the linear flow velocity and volume flow rate of undesired behind casing water flow is provided. A well tool having a 14 MEV pulsed neutron source is used to irradiate the earth formations behind well casing with bursts of high energy neutrons. This irradiation activates elemental oxygen nuclei comprising the molecular structure of the undesired flow. Dual spaced gamma ray detectors located above or below the neutron source detect the decay of unstable isotope nitrogen 16 produced by the oxygen activation in the time intervals between the neutron bursts. Background radiation due to prompt N-.sigma. radiation is thus largely avoided. From the detected nitrogen 16 characteristic gamma rays the linear flow velocity of the undesired flow is determined. By combining this with an estimation of the distance R to the undesired flow region from the detectors, the volume flow rate V may be deduced.

    摘要翻译： 提供了不需要的套管水流的线性流速和体积流量的测量。 使用具有14MEV脉冲中子源的井具可以利用高能中子的脉冲来对井套管后面的地层进行照射。 该照射激活包含不需要的流的分子结构的元素氧核。 位于中子源上方或下方的双重间隔伽马射线探测器检测在中子爆发之间的时间间隔内由氧激活产生的不稳定同位素氮16的衰变。 因此，由于迅速的N-西格玛辐射导致的背景辐射被大大地避免。 从检测到的氮16特征γ射线确定不期望流的线性流速。 通过将其与来自检测器的不期望的流动区域的距离R的估计相结合，可以推导出体积流量V。

    Behind well casing water flow detection system
    43.
    发明授权
    Behind well casing water flow detection system 失效
    井套管水流检测系统后面

    公开(公告)号：US4028546A

    公开(公告)日：1977-06-07

    申请号：US628172

    申请日：1975-11-03

    申请人： Harold E. Peelman ,  Obie M. Langford

    发明人： Harold E. Peelman ,  Obie M. Langford

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

    CPC分类号： G01F1/7042 ,  E21B47/1015 ,  G01F1/64 ,  G01V5/101

    摘要： 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.

    摘要翻译： 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。

    Four-collector flux sensor
    44.
    发明授权
    Four-collector flux sensor 失效
    四集电极通量传感器

    公开(公告)号：US4019383A

    公开(公告)日：1977-04-26

    申请号：US707174

    申请日：1976-07-21

    申请人： Walter J. Wiegand, Jr. ,  Robert H. Bullis ,  Robert J. Mongeon

    发明人： Walter J. Wiegand, Jr. ,  Robert H. Bullis ,  Robert J. Mongeon

    IPC分类号： G01F1/64 ,  G01F1/704 ,  G01P5/18

    CPC分类号： G01F1/7048

    摘要： A sensor for measuring the flux of a gas and some simple alternate embodiments are disclosed. The sensor employs charged particle techniques and includes provision for compensating for environmentally produced changes in the charged particle source. The basic device includes an active region containing the charged particle source located between two upstream charged particle collectors and two downstream charged particle collectors, means for maintaining suitable electric fields between the charged particle source and the collectors, and means for measuring the electric current flowing in each collector. In operation, the sensor is able to compensate for changes in the charged particle source characteristics which would otherwise result in a change of sensor calibration.

    摘要翻译： 公开了一种用于测量气体通量的传感器和一些简单的替代实施例。 该传感器采用带电粒子技术，并且包括用于补偿带电粒子源的环境产生的变化。 基本装置包括含有位于两个上游带电粒子收集器和两个下游带电粒子收集器之间的带电粒子源的有源区域，用于在带电粒子源和收集器之间保持合适电场的装置，以及用于测量流过的电流的装置 每个收藏家 在操作中，传感器能够补偿带电粒子源特性的变化，否则会导致传感器校准的变化。

    Method of determination of the total amount of energy transferred by a flowing fluid
    45.
    发明授权
    Method of determination of the total amount of energy transferred by a flowing fluid 失效
    确定流动流体转移的能量总量的方法

    公开(公告)号：US3988926A

    公开(公告)日：1976-11-02

    申请号：US349622

    申请日：1973-04-09

    申请人： Rudy M. Haas

    发明人： Rudy M. Haas

    IPC分类号： G01F1/704 ,  G01N1/22 ,  G01N33/00 ,  G01N25/00

    CPC分类号： G01N33/0011 ,  G01F1/7042 ,  G01N2001/225

    摘要： The method of determination of the total amount of energy transferred by a flowing fluid comprising injection of an analyzable tracer component at a known mass rate into the flowing fluid, mixing the tracer with the flowing fluid, passing the mixture of tracer and fluid through a cross sectional area, determining the instantaneous flow rate of tracer through the cross sectional area, analyzing the mixture at the cross sectional area to determine the concentration of the tracer, determining the temperature of the flowing fluid at the cross sectional area, determining the initial temperature of the material to which the amount of energy is to be transferred, and double integrating with respect to temperature and time the product of the reciprocal of the determined tracer concentration, the heat capacity of the flowing fluid, and the density of the flowing fluid over the temperature of the flowing fluid and the initial temperature of the material to which the amount of energy is to be transferred over the time period.

    摘要翻译： 确定由流动流体转移的能量总量的方法，包括将已知质量比率的可分析的示踪剂组分注入流动的流体中，将示踪剂与流动的流体混合，使示踪剂和流体的混合物通过十字 确定示踪剂通过横截面积的瞬时流量，在横截面积处分析混合物以确定示踪剂的浓度，确定流动流体在横截面积处的温度，确定 要转移能量的材料，并且相对于温度和时间将确定的示踪剂浓度的倒数，流动流体的热容积和流过的流体的密度的乘积进行双重积分 流动流体的温度和能量的量的材料的初始温度 在这段时间内推迟。

    Method of measuring the mass flow rate of a constituent of a gaseous stream
    46.
    发明授权
    Method of measuring the mass flow rate of a constituent of a gaseous stream 失效
    测量气态物流成分的质量流量的方法

    公开(公告)号：US3881351A

    公开(公告)日：1975-05-06

    申请号：US26758972

    申请日：1972-06-29

    申请人： GEN MOTORS CORP

    发明人： PRACHAR OTAKAR P

    IPC分类号： G01F1/704 ,  G01F1/74 ,  G01F1/76 ,  G01F1/00

    CPC分类号： G01F1/74 ,  G01F1/704 ,  G01F1/76

    摘要： To measure the mass flow rate of a constituent of a gaseous stream, for example, a pollutant in an engine exhaust gas, the concentration or mole fraction of the constituent is measured by an analyzer. Then a tracer gas is injected into the gaseous stream at a predetermined rate and mixed therewith and the concentration of the tracer gas is measured. Then the mass flow rate of the constituent is calculated by the equation Wc Cc Mc Wc /Ct Mt where Wc and Wt are the mass flow rates of the constituent and the tracer gas respectively, Cc and Ct are the concentrations of the constituents and the tracer gas respectively, and Mc and Mt are the molecular weights of the constituent and the tracer gas respectively. Several constituents may be monitored simultaneously in this manner by measuring the concentration of each constituent and using only the one measurement for the tracer gas.

    摘要翻译： 为了测量气流的成分的质量流量，例如发动机排气中的污染物，通过分析仪测量成分的浓度或摩尔分数。 然后将示踪气体以预定速率注入到气流中并与之混合，并测量示踪气体的浓度。 然后通过等式Wc = Cc McWc / Ct Mt计算组分的质量流量，其中Wc和Wt分别是组分和示踪气体的质量流量，Cc和Ct是组分和 示踪气体分别为Mc和Mt分别为成分和示踪气体的分子量。 可以通过测量每个组分的浓度并且仅使用示踪气体的一个测量，可以以这种方式同时监测几种成分。