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A multiphase flow non-separation on-line measuring device and its measuring method

A measuring device and multi-phase flow technology, applied in the direction of detecting fluid flow by measuring differential pressure, volume/mass flow generated by mechanical effects, etc., can solve problems such as radioactive contamination measurement accuracy, save operating costs, and facilitate installation and handling. , the use of a wide range of effects

Active Publication Date: 2019-07-16
CHENGDU ZHONGYOU YILONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems of radioactive pollution and measurement accuracy in the measurement, the present invention provides a non-separation online measurement device and method for multiphase flow, which has the characteristics of safety, environmental protection and high precision.

Method used

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  • A multiphase flow non-separation on-line measuring device and its measuring method
  • A multiphase flow non-separation on-line measuring device and its measuring method
  • A multiphase flow non-separation on-line measuring device and its measuring method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 and figure 2 A non-separated on-line measurement device for multiphase flow is shown, a non-separation on-line measurement device for multiphase flow, including: a sensor module, a data acquisition processor 3, and the sensor module connected to the fluid pipeline includes: two or two The grid capacitive sensor 1 above is arranged in the fluid pipeline. The grid capacitive sensor 1 is composed of a number of excitation electrodes and a number of detection electrodes that are not connected. The excitation electrodes and the detection electrodes are arranged in a grid shape. It is used to measure the holdup and velocity of oil, gas and water phases; the data acquisition processor 3 is connected to the sensor module, and the data acquisition processor 3 is used to receive the measured fluid data and perform sorting and calculation.

[0037]In this embodiment, the sensor module also includes: a pressure sensor 5, a temperature sensor 6, a water content me...

Embodiment 2

[0047] According to the measurement method of a multiphase flow non-separation online measurement device described in Embodiment 1, the implementation process is as follows:

[0048] S1: When the fluid passes through a grid capacitive sensor 1, the grid capacitive sensor 1 transmits the measured data to the data acquisition processor 3, and sorts out the oil-gas-water phase fraction of the fluid;

[0049] S2: When the fluid passes through the two grid capacitive sensors 1 continuously, the two grid capacitive sensors 1 transmit the measured data to the data acquisition processor 3 to sort out the fluid velocity;

[0050] S3: When the fluid passes through the differential pressure measuring device, the differential pressure measuring device transmits the measured data to the data acquisition processor 3 to sort out the differential pressure of the fluid;

[0051] S4: When the fluid passes through the pressure sensor 5, the pressure sensor 5 transmits the measured data to the da...

Embodiment 3

[0060] According to the device described in Embodiment 1 and adopting the method of Embodiment 2, twelve groups of fluids are measured, and the measurement data are as follows:

[0061]

[0062] It can be concluded from the above table that the error of water content is within 2%; the error of liquid volume is within 5%; the error of gas volume is within 10%. The measurement with more accurate results and more convenient operation is realized.

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Abstract

The invention discloses a multi-phase flow nondisjunction online measuring device and a measuring method thereof. The device comprises a sensor module and a data acquisition processor. The sensor module comprises two or more grid capacitive sensors arranged in a fluid pipeline. The grid capacitive sensors are composed of multiple exciting electrodes and multiple detecting electrodes, all of which are not connected, and the grid capacitive sensors are used for measuring the oil-gas-water phase volume fraction and speed. The data acquisition processor is connected with the sensor module. By means of the device and the measuring method thereof, various kinds of data of fluid can be accurately measured in real time, the application range is wide, the device is simple, no manual intervention is needed during measurement, and the whole measuring process is clean and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of fluid measurement, in particular to an on-line non-separated multiphase flow measurement device and a measurement method thereof. Background technique [0002] The measurement of oil-gas-water multiphase flow is a very important work in the process of oilfield development and production. At present, the technology of separator (vertical or horizontal) measurement is still commonly used in oil fields, which divides oil well products into two phases of gas and liquid. The gas is measured by the gas flow meter, and the liquid is measured by the liquid flow meter. The water content in the liquid is determined by Obtained by instrumentation or manual sampling and testing, and then obtain oil and water production respectively. The traditional separator measurement system is composed of manifolds, separators, instruments and other separate components. It is bulky and weighs several tons or even more than ten to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/44
CPCG01F1/44
Inventor 周国隆王征王建国
Owner CHENGDU ZHONGYOU YILONG TECH CO LTD
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