Automatic metering device for oil, water and gas three-phase flow

An automatic metering and three-phase flow technology, which is applied in volume flow measuring devices, measuring devices, volume metering, etc., can solve the problems of reduced measurement accuracy and achieve the effects of high measurement accuracy, wide viscosity range, and simple structure

Inactive Publication Date: 2007-02-07
兰州金里能源科技有限公司
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Problems solved by technology

[0003] In the existing oil field gas-liquid multiphase flow metering technology, a Chinese patent discloses an "oil and gas automatic metering device" (patent number: ZL 200420041937.5) provides an oil and gas automatic metering device, and has been used in onshore oilfields It has

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  • Automatic metering device for oil, water and gas three-phase flow
  • Automatic metering device for oil, water and gas three-phase flow
  • Automatic metering device for oil, water and gas three-phase flow

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with accompanying drawing:

[0045] Such as figure 1 As shown, the gas-liquid mixture enters the cyclone centrifugal separator 3 placed in the gas-liquid separation tank 2 from the gas-liquid inlet pipe 1 through the cyclone separator inlet 31, and the gas-liquid separation is initially realized through the separation of the cyclone centrifugal separator 3 The gas-containing liquid separated by the cyclone centrifuge tube 32 continues to be centrifuged along the guide separation sleeve 33 under the action of inertia—gravity and centrifugal force, and falls down to the gas-liquid separation screen placed at the lower end of the guide separation sleeve 33 35, the liquid sieved by the gas-liquid separation sieve 35 flows down the inner wall of the gas-liquid separation tank 2, and the gas flows up to the gas discharge pipe 4 at the top of the gas-liquid separation tank 2, and thus passes through the centr...

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Abstract

The related flux gauging device for oil-water-gas three phase flow comprises: divided by the flange and pipeline, a separation tank with top connected with a gas-liquid inlet pipe and both top and bottom connected with the control tank top and bottom through a gas-release and liquid-release pipe, a control tank with a floating-ball regulating valve inside and a gas/liquid outlet pipe on top/bottom, a liquid flowmeter, a constituent device, a gas meter on a gas release pipe, and a gas-liquid buffer tank, wherein the gas-release pipe and liquid-release pipe conflux at the confluxing pipe. This invention has measuring precision up to +-0.5~2%, fit to run for long term reliably, and has small size and weight for wide application.

Description

technical field [0001] The invention relates to a metering device for gas-liquid multiphase flow in an oil field, in particular to a flow metering device for three-phase flow of oil, water and gas. Background technique [0002] The research on oilfield multiphase flow measurement began in the development of offshore oilfields in the 1970s. Large oil companies and institutions at home and abroad have devoted themselves to the research of multiphase flow measurement technology and devices. The research methods involve physical principles and the latest measurement technology. And has developed a commercial product. Summarizing its product technology, it can be divided into non-separated mixed multi-phase metering of oil well production fluid and separated phase-separated metering. The metering products without gas-liquid separation technology adopt mixed metering technologies such as Venturi, gamma ray, capacitance / inductance correlation method, etc. to perform multi-phase me...

Claims

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Application Information

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IPC IPC(8): G01F1/74G01F7/00G01F15/08
Inventor 寿焕根
Owner 兰州金里能源科技有限公司
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