High-precision real-time online multi-phase flow meter for oil field

A multi-phase flowmeter, high-precision technology, applied in the direction of measurement, wellbore/well components, earthwork drilling and production, etc., can solve the problems that cannot meet the production requirements of oilfields, so as to facilitate oilfield management, effective measurement, and improve measurement accuracy Effect

Active Publication Date: 2014-12-24
四川速荣科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For many oil wells in the middle and late stages of production, the water cut is generally as high as 90%, so the multiphase flowmeter with large water cut measurement error cannot meet the production requirements of the oil field

Method used

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  • High-precision real-time online multi-phase flow meter for oil field

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Embodiment 1

[0019] The invention is a multi-phase flowmeter which integrates the measurement of oil volume, water volume, gas volume and water content.

[0020] Figure 1(a) is the front view of the overall structure of the high-precision real-time online multiphase flowmeter for oil fields of the present invention, and Figure 1(b) is the overall structure of the high-precision real-time online multiphase flowmeter for oil fields of the present invention. view, figure 2 It is a schematic structural view of the gas-liquid separator in the present invention, image 3 It is a structural schematic diagram of the moisture content measuring instrument in the present invention. In Figures 1 to 3, the high-precision real-time online multiphase flowmeter for oilfields of the present invention includes a gas-liquid separator 2, a float oil-gas three-way regulating valve 3, a liquid flowmeter 5, a moisture content measuring instrument 10, a gas Flowmeter 13, valves, and pipelines; the connection re...

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Abstract

The invention provides a high-precision real-time online multi-phase flow meter for an oil field. The high-precision real-time online multi-phase flow meter comprises a safety valve, a gas-liquid separator, a floater oil-gas three-way adjusting valve, a liquid flow meter, a pressure gauge, a water content measuring instrument, a gas flow meter, valves and a pipeline, wherein the gas-liquid separator is used for carrying out gas-liquid separation on a medium; the floater oil-gas three-way adjusting valve guarantees metering precisions of the liquid flow meter and the gas flow meter; the water content measuring instrument utilizes differential pressure transmitters to measure a water content numerical value in liquid. The multi-phase flow meter can be used for accurately, rapidly and effectively measuring the water content of the liquid in real time and the measurement error of the water content is less than plus or minus 2%; oil, water and gas yield numerical values are obtained by processing metering results of the liquid flow meter and the gas flow meter by a computer. The multi-phase flow meter can implement production optimization; the working efficiency of the oil field is improved and the production and development costs of the oil field are saved; the oil field management and the flow control are facilitated.

Description

technical field [0001] The invention belongs to the field of oilfield metering, and in particular relates to a high-precision real-time online multiphase flowmeter for oilfields. Background technique [0002] In the actual production process of oilfields, how to measure oil, water, and gas production in real time, accurately, quickly and effectively is very important: on the one hand, it can implement production optimization, improve oilfield work efficiency, and save oilfield production and development costs; on the other hand , which is beneficial to oilfield management and process control. [0003] In the actual production process of oil fields, there are many types of multiphase flowmeters for gas, oil, and water, and there are many related patents. However, most of the multiphase flowmeters in the market currently have low measurement accuracy, especially the measurement accuracy of water cut. The error reaches ±10%. For many oil wells in the middle and late stage of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00
Inventor 李绍辉罗德全张伟业代长江吴祉群李斌
Owner 四川速荣科技有限公司
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