中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

39 records (took 0.025 seconds)

    Systems and methods for measuring phase flow rates of a multiphase production fluid
    15.
    发明授权
    Systems and methods for measuring phase flow rates of a multiphase production fluid 有权

    公开(公告)号：US11828175B2

    公开(公告)日：2023-11-28

    申请号：US17370243

    申请日：2021-07-08

    Applicant: Saudi Arabian Oil Company

    Inventor： Max Deffenbaugh ,  Robert Adams ,  Thomas Joseph Theodore Hillman

    IPC: E21B49/08 ,  E21B47/06 ,  E21B43/12 ,  G01F3/02

    CPC classification number: E21B49/0875 ,  E21B43/12 ,  E21B47/06 ,  G01F3/02

    Abstract: Systems and methods for measuring phase flow rates of a multiphase production fluid are provided where a fluidic isolation chamber expands volumetrically in response to fluid pressure from a diverted multiphase production fluid. A pressure-regulating actuator regulates fluid pressure upstream of the fluidic isolation chamber and an upstream fluidic pressure sensor generates an upstream fluidic pressure signal. A fluidic control and analysis unit is configured to communicate with the upstream pressure sensor and the isolation chamber actuator to maintain fluidic pressure upstream of the fluidic isolation chamber as the multiphase production fluid is diverted to the fluidic isolation chamber. The unit generates a total flow rate QTOT as a function of chamber filling time and volumetric expansion and communicates with the fluidic phase detector to generate a relative occupancy indicator I for a target phase of the multiphase production fluid in the fluidic isolation chamber. A flow rate QP for the target phase is generated as a function of the total flow rate QTOT and the relative occupancy indicator I.

    Method and device for measuring fluid properties using an electromechanical resonator
    17.
    发明授权
    Method and device for measuring fluid properties using an electromechanical resonator 有权

    公开(公告)号：US11061158B2

    公开(公告)日：2021-07-13

    申请号：US16435684

    申请日：2019-06-10

    Applicant: Saudi Arabian Oil Company

    Inventor： Miguel Gonzalez ,  Max Deffenbaugh ,  Huseyin Seren ,  Sebastian Csutak

    IPC: G01V1/50 ,  E21B49/08 ,  G01N9/00 ,  G01N11/16

    Abstract: A method and device are described for making in situ measurements of the density and viscosity of downhole fluids at subterranean wells. An oscillator circuit is deployed in the well comprising an amplifier, a feedback loop, and an electromechanical resonator. The electromechanical resonator is a component in the feedback loop of the oscillator circuit, and has a resonance mode that determines the frequency of the oscillator circuit. The electromechanical resonator is also in contact with the fluid such that the density and viscosity of the fluid influence the resonant frequency and damping of the resonator. The frequency of the oscillator is measured by a microcontroller. In one embodiment, the oscillator circuit periodically stops driving the electromechanical resonator such that the oscillation decays and the rate of decay is also measured by the microcontroller. The density and viscosity of the fluid are determined from the frequency and rate of decay of the oscillation. This measurement technique provides a faster response time to fluid changes than is possible with conventional measurement methods, and the fast response time opens up new applications for downhole viscosity and density measurements, including determining PVT characteristics, phase diagrams, and flow rates.

    DETERMINATION OF GEOLOGIC PERMEABILITY CORRELATIVE WITH MAGNETIC PERMEABILITY MEASURED IN-SITU
    18.
    发明申请
    DETERMINATION OF GEOLOGIC PERMEABILITY CORRELATIVE WITH MAGNETIC PERMEABILITY MEASURED IN-SITU 有权

    公开(公告)号：US20210041591A1

    公开(公告)日：2021-02-11

    申请号：US16988434

    申请日：2020-08-07

    Applicant: Saudi Arabian Oil Company

    Inventor： Val Riachentsev ,  Robert Adams ,  Max Deffenbaugh ,  Howard K. Schmidt

    IPC: G01V3/28 ,  E21B49/08 ,  E21B47/113 ,  G01V3/30 ,  E21B47/06

    Abstract: The present device and technique relates to measuring geological formation permeability, such as by injection/withdrawal of conductivity-permeability doped fluid and measuring the magnetic permeability and/or conductivity of the surrounding formation. Before, during and/or after injection or withdrawal, pluralities of electromagnetic measurements of the radial distribution of magnetic permeability and/or conductivity of the surrounding formation may be made. The rate of change of the radial distribution of magnetic permeability and/or conductivity of the formation is generally directly proportional to the permeability of the surrounding formation. In implementations, magnetic permeability and electrical conductivity can be measured independently in time domain or frequency domain, such that the magnetic permeability mapping is not disturbed by other confounding electromagnetic parameters.

    Method And Device For Measuring Fluid Properties Using An Electromechanical Resonator
    19.
    发明申请
    Method And Device For Measuring Fluid Properties Using An Electromechanical Resonator 审中-公开
    使用机电谐振器测量流体特性的方法和装置

    公开(公告)号：US20170038491A1

    公开(公告)日：2017-02-09

    申请号：US15228241

    申请日：2016-08-04

    Applicant: Saudi Arabian Oil Company

    Inventor： Miguel Gonzalez ,  Max Deffenbaugh ,  Huseyin Seren ,  Sebastian Csutak

    IPC: G01V1/50 ,  E21B49/08

    CPC classification number: G01V1/50 ,  E21B49/08 ,  E21B49/087 ,  E21B2049/085 ,  G01N9/002 ,  G01N11/16 ,  G01N2009/006

    Abstract: A method and device are described for making in situ measurements of the density and viscosity of downhole fluids at subterranean wells. An oscillator circuit is deployed in the well comprising an amplifier, a feedback loop, and an electromechanical resonator. The electromechanical resonator is a component in the feedback loop of the oscillator circuit, and has a resonance mode that determines the frequency of the oscillator circuit. The electromechanical resonator is also in contact with the fluid such that the density and viscosity of the fluid influence the resonant frequency and damping of the resonator. The frequency of the oscillator is measured by a microcontroller. In one embodiment, the oscillator circuit periodically stops driving the electromechanical resonator such that the oscillation decays and the rate of decay is also measured by the microcontroller. The density and viscosity of the fluid are determined from the frequency and rate of decay of the oscillation. This measurement technique provides a faster response time to fluid changes than is possible with conventional measurement methods, and the fast response time opens up new applications for downhole viscosity and density measurements, including determining PVT characteristics, phase diagrams, and flow rates.

    Abstract translation: 描述了一种方法和装置，用于对地下井下井下流体的密度和粘度进行原位测量。 振荡器电路部署在井中，包括放大器，反馈回路和机电谐振器。 机电谐振器是振荡器电路的反馈环路中的一个部件，并且具有确定振荡器电路的频率的谐振模式。 机电谐振器也与流体接触，使得流体的密度和粘度影响谐振器的谐振频率和阻尼。 振荡器的频率由微控制器测量。 在一个实施例中，振荡器电路周期性地停止驱动机电谐振器，使得振荡衰减和衰减速率也由微控制器测量。 流体的密度和粘度由振荡衰减的频率和速率决定。 这种测量技术比传统的测量方法提供了比液体变化更快的响应时间，快速响应时间为井下粘度和密度测量（包括确定PVT特性，相图和流速）开辟了新的应用。

Patent Agency Ranking