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Device and method for testing fluid phase content distribution on basis of combination of screw rod pump and ERT (Electrical Resistance Tomography)

A screw pump and fluid phase technology, applied in the direction of material resistance, can solve problems such as unsatisfactory, and achieve the effects of small environmental factors, high precision, and strong anti-interference

Active Publication Date: 2018-10-09
SOUTHWEST PETROLEUM UNIV
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  • Application Information

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Problems solved by technology

Traditional measurement methods cannot meet the needs of industrial real-time online measurement and visual monitoring of the phase content of mixed fluids in oil and gas wells and mixed transportation pipelines. There is an urgent need for the present invention to accurately measure the phase content of various media in the pipeline online

Method used

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  • Device and method for testing fluid phase content distribution on basis of combination of screw rod pump and ERT (Electrical Resistance Tomography)

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0017] Such as figure 1 As shown, a device for measuring fluid phase content distribution based on the combination of screw pump and ERT includes a control system, a pipeline transportation system and a parameter system. The control system includes a computer 12 and a control electric cabinet 14. The pipeline transportation system includes a circulation pipeline 17, Multiphase fluid inlet 1, multiphase fluid outlet 19 and screw pump 3, parameter acquisition system includes ERT4, pressure transmitter 5 and temperature transmitter 16.

[0018] An electric valve A2 is installed at the right end of the multiphase fluid inlet 1, and the outlet of the electric valve A2 is divided into two circulating pipes 17, one connected to the screw pump 3 and the other connected to the electri...

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Abstract

The invention discloses a device and method for testing fluid phase content distribution on the basis of combination of a screw rod pump and ERT (Electrical Resistance Tomography). The device mainly consists of a control system, a parameter acquisition system and a tube conveying system. By adopting a modern automatic technique, automatic control on parameter acquisition and measurement proceduresis achieved, and by adopting the device and the method, not only are phase content data of any one point of a multi-phase fluid in a circulation pipeline obtained, but also phase content distributiondata of the multi-phase fluid in the circulation pipeline can be obtained, and furthermore phase content distribution curves of the multi-phase fluid in the circulation pipeline can be drawn; due tosuccessful application of the device and the method, a phase content distribution measurement method which is high in precision, non-contact, visible, small-size, good in interference resistance, freeof fluid field interference and small in environment factor influence is provided for mixing and conveying of the multi-phase fluid, and an effective method for precise on-line measurement on phase contents and phase flows of multi-phase fluids at a production site is provided.

Description

technical field [0001] The invention relates to measuring the phase content distribution of each phase of a multiphase fluid in a pipeline, in particular to a device and a method for measuring the fluid phase content distribution based on the combination of a screw pump and an ERT. Background technique [0002] In the production of oil and gas wells and oil and gas mixed transportation pipelines, crude oil, natural gas and mineralized water produced by oil wells form a multiphase flow with very complex phase and flow states, which is a multivariable random change combination process. To accurately obtain the flow rate of each phase, it is necessary to accurately measure the phase content of each phase in the mixed fluid. Under actual working conditions, by detecting flow parameters such as the flow rate of oil, gas, and water mixed in the pipeline, and the phase fraction (gas content and water content) on the flow section, the flow computer system is used to analyze various ...

Claims

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Application Information

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IPC IPC(8): G01N27/08G01N27/10
CPCG01N27/08G01N27/10
Inventor 魏纳李海涛赵金洲周守为张烈辉孙万通
Owner SOUTHWEST PETROLEUM UNIV
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