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Measuring device and method for overcurrent type resonant sound spectrum multiple phase flow state test

A measuring device and resonance acoustic spectrum technology, which is applied in the field of resonance acoustic spectrum measurement of multiphase flow, can solve problems such as the inability to measure gas content in gas-liquid two-phase flow transiently, and achieve short measurement time, accurate measurement, and measurement high precision effect

Inactive Publication Date: 2010-05-26
INST OF ACOUSTICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiency that the resonance acoustic spectrum measurement method in the prior art cannot perform transient measurement of the gas holdup in the gas-liquid two-phase flow, and to provide an improved resonance acoustic spectrum multiphase flow that can be dynamically measured Measuring device and method for detection

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  • Measuring device and method for overcurrent type resonant sound spectrum multiple phase flow state test
  • Measuring device and method for overcurrent type resonant sound spectrum multiple phase flow state test
  • Measuring device and method for overcurrent type resonant sound spectrum multiple phase flow state test

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Embodiment 1

[0037] Such as figure 1 Shown is the principle diagram of the flow-through transient resonance acoustic spectrum experimental measurement device of the present invention, the device includes: a cylindrical resonant cavity 10 for allowing fluid to flow through it; and is used to excite the resonant cavity 10 to generate transient free vibration A signal generating unit 11; a sensor 12 for receiving the transient acoustic wave signal generated when the resonant cavity 10 vibrates freely; and a signal processing unit 13 connected to the sensor 12. In the figure, the resonant cavity 10 is a dynamic or static fluid to be measured, and the small circle in the figure schematically represents the gas 14 contained in the fluid. Based on the content of the invention, there may be different specific forms when implementing the present invention.

[0038] Such as figure 2 As shown, this embodiment is a set of flow-through transient resonance acoustic spectrum gas-liquid two-phase flow ...

Embodiment 2

[0047] In Embodiment 1, the resonant cavity 10 is a piezoelectric ceramic tube that can convert electrical energy into mechanical energy (acoustic energy). The inner liquid medium is non-conductive, such as diesel 15. In this embodiment, the resonant cavity 10 adopts a prismatic steel tube, such as a hexagonal prism-shaped steel tube, and an excitation source capable of providing transient mechanical force is used to directly excite the resonant cavity to generate transient free vibration. Signal excitation, so there is no need to consider the short circuit problem on the inner and outer walls of the resonant cavity, so the measurement situation can include the conduction of the liquid medium in the resonant cavity, such as water16.

[0048] Such as Figure 5 As shown, it is a set of experimental measurement scheme of flow-through transient resonance acoustic spectrum gas-liquid two-phase flow gas content detection in this embodiment, and the gas-liquid two-phase flow is comp...

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Abstract

The present invention discloses a measurement device for overflow resonance sound spectrum multiphase flowing stage detection and its method. Said device includes the following several portions: resonant cavity capable of making fluid be passed through its interior; signal generation unit for exciting the described resonant cavity and making it produce transient free vibration; sensor for receiving transient sound wave signal sent when the resonant cavity produces transient free vibration; and signal processing unit connected with the described sensor. Besides, said invention also provides theconcrete steps of its measurement detection method.

Description

technical field [0001] The invention relates to the resonance acoustic spectrum measurement technology of multiphase flow, in particular to a resonance acoustic spectrum transient measurement device and measurement method suitable for gas-liquid two-phase flow or oil, gas and water three-phase flow in oil field production wells. Background technique [0002] In the process of oilfield development, it is very important to accurately measure the gas content of oil, gas and water three-phase flow in the production well for investigating the influence of oil well gas on the test results of the production profile, determining the stratified phase separation production and adjusting the production plan meaning. At present, the conventional measurement methods for gas content in the oil field mainly include well temperature logging and differential pressure density meter. For example, the document "Introduction to Production Logging, Guo Haimin, Petroleum Industry Press, 2003: 224...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/08
Inventor 王秀明陈德华丛健生徐德龙
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI