A device for early monitoring and elimination of severe slug flow in deep-water gas pipelines
A technology for gas pipelines and monitoring devices, applied in gas/liquid distribution and storage, pipeline systems, mechanical equipment, etc., can solve the problems of inability to realize early monitoring of severe slug flow, harsh conditions for effective implementation, etc., and achieve economical and Effective liquid phase treatment goals, achieving liquid phase treatment goals, and improving engineering accuracy
Active Publication Date: 2022-04-29
CHINA UNIV OF PETROLEUM (EAST CHINA) +1
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Problems solved by technology
Active suppression technologies such as the gas lift method are also unable to achieve early detection of severe slug flow, and the conditions for its effective implementation are harsh, requiring an effective and sufficient external gas source
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[0024] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0025] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0026] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, it only means ...
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The invention relates to the technical field of severe slug flow treatment in deep-water gas pipelines, and in particular to an early monitoring and elimination device for severe slug flow in deep-water gas pipelines. A real-time monitoring device and a computing device for the flow, temperature, and pressure of gas and liquid after the separation platform. The computing device is used to calculate the pressure difference measurement at the bottom of the riser of the gas pipeline based on the parameters measured by the monitoring device and based on the steady-state multiphase flow model. The pressure drop of the section is compared with the measured pressure difference of the bottom measurement section of the riser of the gas pipeline to monitor the evolution of severe slug flow; the early elimination device is used to adjust the operating parameters of the subsea pump according to the calculation results of the calculation device, Realize severe slug flow liquid phase outflow. It makes full use of the pipeline space and the evolution characteristics of severe slug flow, accurately judges the formation of severe slug flow in the early stage of severe slug flow and handles it in time to ensure the normal operation of deep-water gas pipelines.
Description
technical field [0001] The invention relates to the technical field of severe slug flow treatment of deep-water gas transmission pipelines, in particular to an early monitoring and elimination device for severe slug flow of deep-water gas transmission pipelines. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] During the development of deep-water gas fields, gas-liquid mixed transportation is adopted for gathering and transportation. However, in the late stages of deep-water gas fields, the gas production rate keeps decreasing and the liquid production rate keeps increasing, and the liquid tends to accumulate at the bottom of the gas pipeline, resulting in th...
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IPC IPC(8): F17D5/00F17D3/01F17D1/02
CPCF17D5/00F17D3/01F17D1/02
Inventor 张振楠李玉星胡其会刘翠伟王武昌朱建鲁韩辉
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)