Multiphase flow pipeline mechanical wax removal simulated test device and mould to manufacture wax deposit

Abstract

The invention provides a multiphase flow pipeline mechanical wax removal simulated test device and a mould to manufacture wax deposit. The multiphase flow pipeline mechanical wax removal simulated test device comprises a testing station. The testing station is fixedly provided with a multiphase flow pipeline component. The multiphase flow pipeline component comprises a main pipeline. The main pipeline is provided with a wax deposit arranged in the axial direction and having a crescent-shaped cross section. The main pipeline is provided with a pipeline cleaner. The pipeline cleaner is connected with a rope. One end of the rope penetrates the main pipeline. The upper part at one end of the main pipeline is provided with a wax cleaning resistance detection mechanism. The wax cleaning resistance detection mechanism comprises a measured force sensor. One end of the upper part of the measured force sensor is connected with an electric winch drive mechanism. Observation mechanisms are parallelly arranged at intervals on one side of the main pipeline and can observe pipeline cleaning. The multiphase flow pipeline mechanical wax removal simulated test device further comprises a control system. The test device is capable of simulating the use of a mechanical mode to clean the wax in a multiphase flow pipeline and can find applications in the research on the wax removal of an oceanic petroleum transporting pipeline.

Description

technical field [0001] The invention relates to a measuring instrument, in particular to a mechanical wax removal test device for simulating offshore oil multiphase flow gathering and transportation pipelines and a mold for making wax deposits. Background technique [0002] With the development of the world economy, the demand for oil and natural gas energy has increased sharply, and the exploitation of offshore oil and gas has attracted the attention of various countries. In the process of offshore oil and gas exploitation, the multiphase gathering and transportation method is the main way to transport oil and gas. Due to the special low-temperature environment of the ocean, there is a large temperature difference between the pipeline wall and the oil and gas transported, and the wax crystal molecules in the crude oil are deposited on the pipeline wall, thereby forming wax deposits on the pipeline wall. With the increase of deposition time, wax deposits will seriously redu...

AI Technical Summary

Problems solved by technology

The problem of gathering and transporting multi-phase flow has not been considered, especially when the oil-gas two-phase flow is transported, the wax deposit is crescent-shaped rather than ring-shaped; moreover, there is no crude oil in the pipeline of this device, which is very different from the actual pipeline ; At the same time, the experimental device and experimental method can only measure the wax removal resistance of the pipe pig, and cannot observe the migration of wax chips during the wax removal process online

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