Fully-visual circulation pipeline system for studying hydrate blockage

Abstract

The invention discloses a fully-visual circulation pipeline system for studying hydrate blockage. The fully-visual pipeline system comprises a first pipeline, a second pipeline, a third pipeline, anda fourth pipeline, which are connected end to end in sequence. A single screw pump is connected between the first pipeline and the fourth pipeline. The first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all pervious to light. A plurality of CCD cameras are arranged between the first pipeline, the second pipeline, the third pipeline and the fourth pipeline. The fully-visual pipeline system is arranged in a stepping low-temperature constant temperature room. A liquid injection system can inject solution into the fully-visual pipeline system. A separation and collection system can separate and recover the solution. A data acquisition system can integrate the sensor information in all other systems and provide real-time feedback so as to ensure that all the systems operate reasonably and coordinately. The fully-visual circulation pipeline system for studying hydrate blockage can realize the fully-visual and real-time monitoring on 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

Images