Erosion simulation experiment method and apparatus

Abstract

The invention relates to a corrosion simulation test method and a relative device, which is characterized in that the invention uses one motor to rotate the sample rotation shafts in a plurality of autoclaves, respectively fixes and connects the motor and autoclaves with one rotary mount capable of being positioned, and adjusts the inclination angle of the mount to realize the sample corrosion simulation test under variable flow forms in the autoclaves. The device comprises a base which can be rotationally connected with a mount, a motor on the top of the mount, a plurality of autoclaves in the bottom of the mount, a multi-concave-channel belt wheel fixed on the extrusion shaft of the motor while the extrusion end of the sample rotation shaft in each autoclave is fixed with a multi-concave-channel belt wheel and each concave channel on the multi-concave-channel belt wheel is connected with one belt relative with the multi-concave-channel belt wheel on one sample rotation shaft. The invention is suitable for simulating the corrosion tests of collecting and feeding pipe of oil and natural gas.

Description

technical field [0001] The invention relates to a corrosion simulation experiment method and device, in particular to a dynamic high temperature normal pressure multi-flow corrosion simulation experiment method and device. Background technique [0002] The produced fluid of oil and gas fields is usually a mixture of oil, water and gas, and the CO contained in it 2 It is highly corrosive to oil and gas gathering and transportation pipelines and equipment, and some facilities have caused corrosion leakage and even explosion. The accident analysis and research trends at home and abroad in recent years show that CO 2 Corrosion has increasingly become one of the main factors affecting the safe production of oil and gas fields. CO 2 The study of the mechanism and law of corrosion phenomena requires a large number of simulation experiments. Since the transport medium in the gathering and transportation pipeline often has a variety of fluid states, for the mixture of oil, water a...

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Problems solved by technology

CO 2 The study of the mechanism and law of corrosion phenomena requires a large number of simulation experiments. Since the transport medium in the gathering and transportation pipeline often has a variety of fluid states, for the mixture of oil, water and gas, due to the different densities, the oil, water and gas will be different in the experiment. Automatic stratification, the current corrosion simulation experiment only considers the laminar flow state, but there is no suitable simulation experiment method and device for the corrosion of multiphase media in the turbulent flow state, and only one condition can be simulated at a time Experiments, which limit the development of a large number of simulation experiments, resulting in long experiment periods, high investment and maintenance costs

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