Online self-calibration oil-gas-water three-phase metering device and metering method

A metering device and technology for oil, gas and water, applied in the field of multiphase flow metering, can solve the problems of increased production costs, high water salinity, and frequent maintenance and cleaning of oil-water measuring instruments, and achieves accurate measurement, accurate switching, and measurement methods. simple effect

Pending Publication Date: 2021-08-06
XINJIANG ZHONGYUAN TIANNENG OIL & GAS TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

Factors such as spoilage, high wax content, and high water salinity in the wellhead fluid lead to frequent maintenance and cleaning of the oil-water measuring instrument, which increases production costs

Method used

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  • Online self-calibration oil-gas-water three-phase metering device and metering method

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 As shown, an online self-calibration oil-gas-water three-phase metering device includes a multiphase flow mixer 2, a separation pipe 3 and a flow computer 16, and the side of the multiphase flow mixer 2 is provided with a liquid level gauge 10 through a connecting pipe 18 One end of the multi-phase flow mixer 2 is provided with an oil-gas-water inlet pipe 17 communicating with the separation pipe 3 near the top, and the end of the multi-phase flow mixer 2 away from the oil-gas-water inlet pipe 17 is provided with an oil-gas-water inlet pipe 17 communicating with its interior. Inlet 1, the top of the separation pipe 3 is provided with a gas phase pipeline 4 communicating with its interior, and the bottom of the separation pipe 3 is provided with an outlet pipeline 13 communicating with its interior, and the gas ...

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Abstract

The invention discloses an on-line self-calibration oil-gas-water three-phase metering device which comprises a multiphase flow mixer, a separation pipe and a flow computer. One end of the multiphase flow mixer is provided with an oil-gas-water inlet pipe communicated with the position, close to the top, of the separation pipe; the end, away from the oil-gas-water inlet pipe, of the multiphase flow mixer is provided with an oil-gas-water inlet communicated with the interior of the multiphase flow mixer, the top of the separation pipe is provided with a gas-phase pipeline communicated with the interior of the separation pipe, the bottom of the separation pipe is provided with an outlet pipeline communicated with the interior of the separation pipe, and the ends, away from the separation pipe, of the gas-phase pipeline and the outlet pipeline are communicated. An oil-gas-water outlet is formed in the communication position of the gas phase pipeline and the outlet pipeline, a gas-liquid two-phase flowmeter is arranged on the gas phase pipeline, and an electric three-way valve and a gas-liquid two-phase mass flowmeter are sequentially arranged on the outlet pipeline from the end close to the separation pipe to the end away from the separation pipe. The invention further discloses a metering method of the online self-calibration oil-gas-water three-phase metering device.

Description

technical field [0001] The invention belongs to the field of multiphase flow measurement, and in particular relates to an online self-calibration oil-gas-water three-phase metering device and a metering method. Background technique [0002] At present, the metering of single-well multiphase flow at the wellhead of domestic oilfields mostly uses larger separators for metering. For some high-yield oil and gas wells or oil and gas wells that lose production quickly after high production in the early stage, users have to design larger separators, especially when encountering high pressure. And highly corrosive medium fluids, the metering equipment is huge, special materials are required, and the cost is extremely high. Users and designers are very entangled in this. Factors such as spoilage, high wax content, and high water salinity in the wellhead fluid lead to frequent maintenance and cleaning of the oil-water measuring instrument, which increases production costs. The meteri...

Claims

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Application Information

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IPC IPC(8): G01F25/00G01F7/00E21B47/00E21B43/34
CPCG01F7/00E21B47/00E21B43/34G01F25/10
Inventor 卢玖庆高永鑫顾泓王彬臣何峰何宇
Owner XINJIANG ZHONGYUAN TIANNENG OIL & GAS TECH CO LTD
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