Anticorrosive coating high-temperature and high-pressure resistant performance evaluation testing device and testing method

Abstract

The invention discloses an anticorrosive coating high-temperature and high-pressure resistant performance evaluation testing device and testing method, and belongs to the technical field of metal anticorrosive coating performance detection. An experiment device mainly comprises a heating system, a temperature control system, a pressurization system, a pressure measurement system, a high-pressure valve and a pipeline. The testing method mainly comprises the following steps: putting a to-be-inspected coating specimen into a testing barrel, then sealing a testing barrel cap, and heating and pressurizing the testing barrel by a pressurization pump and the heating system; keeping the temperature and pressure according to the experiment requirement after the temperature and pressure in the barrel reach a stipulated condition until the complete of the experiment; and finally, taking out the specimen, and inspecting the variation of each performance of the coating. The anticorrosive coating high-temperature and high-pressure resistant performance evaluation testing device and testing method can truly simulate the high-temperature and high-pressure environments when the anticorrosive coating is applied in oil and gas exploitation process, and provide a novel method and basis for accurately and efficiently evaluating the high-temperature and high-pressure performances in a laboratory.

Description

technical field [0001] The invention belongs to the technical field of metal anticorrosion coating performance detection. Background technique [0002] In the process of oil and gas drilling and production, a large number of metal pipes are required. These metal pipes need to withstand the corrosion of various corrosive media accompanying the oil and gas drilling process. With the in-depth development of oil and gas exploration, geological conditions are becoming more and more complex, and harsh working conditions such as high temperature and high pressure, high corrosion environment, and marine environment have put forward higher requirements for the corrosion resistance of metal pipes. At present, the anti-corrosion coating on the pipe wall of oil pipes is one of the effective ways to slow down the corrosion of oil pipes. For the effect of anti-corrosion coatings, many research institutions at home and abroad have established simulation test devices for anti-corrosion co...

AI Technical Summary

Problems solved by technology

For the effect of anti-corrosion coatings, many research institutions at home and abroad have established simulation test devices for anti-corrosion coatings' wear resistance, acid and alkali resistance, adhesion and coating tensile properties, but these tests are performed at normal temperature and pressure. It is carried out under the conditions, and there is no report on the high-temperature and high-pressure performance testing and evaluation device and method for anti-corrosion coatings.

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