High-temperature and high-pressure erosion-corrosion fatigue testing device

Abstract

The invention relates to a high-temperature and high-pressure erosion-corrosion fatigue testing device applied to the field of material experimental science. The testing device comprises a high-temperature and high-pressure kettle, wherein a sample clamping mechanism is mounted in the high-temperature and high-pressure kettle; the high-temperature and high-pressure kettle is a cylindrical tank body, a sealed erosion circulating loop is connected to one side of the high-temperature and high-pressure kettle, an erosion pump is connected to the sealed erosion circulating loop, a nozzle is connected to a water outlet of the erosion pump and corresponds to a sample in the sample clamping mechanism, and a high-speed erosion-corrosion environment is formed on the sample by fluid in the high-temperature and high-pressure kettle by virtue of the erosion pump; a temperature pressure sensor is arranged in the high-temperature and high-pressure kettle, and the erosion pump and the temperature pressure sensor are respectively connected with a computer through cables; and the high-temperature and high-pressure kettle is connected with a high-pressure gas cylinder through a pipeline and a booster pump. The high-temperature and high-pressure erosion-corrosion fatigue testing device can be used for simulating and testing the fatigue performance of drilling equipment and a well completion production pipeline under an erosion effect.

Description

technical field [0001] The invention is applied in the field of material experiment science, and relates to a high-temperature and high-pressure erosion corrosion fatigue testing device. Specifically, the device can better simulate the high-temperature and high-pressure erosion fatigue performance of oil well pipes under actual working conditions. Background technique [0002] At present, the failure of high-temperature and high-pressure oil and gas wells, especially high-temperature and high-pressure ultra-deep oil and gas wells, is becoming more and more serious. Many failed pipe strings are under various working conditions such as erosion and vibration, and it is difficult for existing devices to simulate wellbore high-temperature and high-pressure flushing. Material fatigue problems in corrosive environments. Since the fatigue performance of oil well pipe materials cannot be ignored during the drilling and production of high temperature and high pressure oil and gas well...

AI Technical Summary

Problems solved by technology

[0002] At present, the failure of high-temperature and high-pressure oil and gas wells, especially high-temperature and high-pressure ultra-deep oil and gas wells, is becoming more and more serious. Many failed pipe strings are under various working conditions such as erosion and vibration, and it is difficult for existing devices to simulate wellbore high-temperature and high-pressure flushing. Material fatigue problems in corrosive environments

Images