A fully visualized circulation pipeline system applied to the study of hydrate blockage

Abstract

The invention discloses a fully visualized circulation pipeline system for studying hydrate blockage. The fully visualized pipeline system includes a first pipeline, a second pipeline, a third pipeline and a fourth pipeline connected end to end in sequence. The screw pump is connected between the four first pipelines and the fourth pipeline, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all transparent, the first pipeline, the second pipeline , Several CCD cameras are set between the third pipeline and the fourth pipeline, and the fully visualized pipeline system is set in a step-by-step low-temperature constant temperature room; the liquid injection system can inject the solution into the fully visualized pipeline system; the separation collection system It can separate and recycle the solution; the data acquisition system can integrate the sensor information in all other systems and provide real-time feedback to ensure the reasonable and coordinated operation of all systems. The present invention is applied to a fully visualized circulation pipeline system for research on hydrate blockage, which can realize full visualization and real-time monitoring of the circulation pipeline system.

Description

technical field [0001] The invention relates to the technical field of pipeline flow safety control, in particular to a fully visualized circulation pipeline system applied to research on hydrate blockage. Background technique [0002] Hydrocarbon molecules in natural gas and free water will combine under certain temperature and pressure conditions to form natural gas hydrate, which is a white crystalline solid. In the process of oil and gas exploitation and transportation, especially in the low-temperature, high-pressure deep-water environment, natural gas hydrate is very easy to form, and the natural gas hydrate will block the transportation pipeline, and it is extremely difficult to clean the natural gas hydrate in the pipeline in the deep-water environment, seriously affecting The efficiency of oil and gas production is improved; the research on the flow safety problem caused by hydrate blockage in the pipeline will help to solve the above problems. [0003] The current...

AI Technical Summary

Problems solved by technology

In the process of oil and gas exploitation and transportation, especially in the low-temperature, high-pressure deep-water environment, natural gas hydrate is very easy to form, and the natural gas hydrate will block the transportation pipeline, and it is extremely difficult to clean the natural gas hydrate in the pipeline in the deep-water environment, seriously affecting The efficiency of oil and gas production is improved; the research on the flow safety problem caused by hydrate blockage in the pipeline will help to solve the above problems

[0003] The current flow safety evaluation experimental circulation pipeline can achieve a certain degree of scientific research and obtain relevant experimental data, but it has not achieved full visualization, and it is impossible to observe the overall state of natural gas hydrate blockage in the pipeline, nor can it Obtaining real-time images of the blockage process of hydrate formation cannot provide basic data for solving flow safety problems in the process of submarine oil and gas pipeline transportation; Liquid multi-phase injection, and the experimental gas and liquid cannot be recycled, and it will cause damage to the environment

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