A temperature-controllable pressure-controlled oil-gas-water-solid multiphase pipeline simulation experiment device
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A technology for simulating experimental devices and transportation pipelines, which is applied in the field of simulating experimental devices for oil, gas, water and solid multiphase transportation pipelines with controllable temperature and pressure.
Active Publication Date: 2021-04-30
SOUTHWEST PETROLEUM UNIV
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[0003] Among the currently disclosed multiphase flow experimental loop devices, some devices (CN201410461202, CN201020579905) can perform gas, oil, and water multiphase flow simulation experiments, but the disclosed devices cannot simultaneously simulate horizontal, vertical, and inclined pipes. Oil, gas, water, and solid multiphase flow cannot be flexibly converted between oil, gas, water, and solid multiphase fluids and single-phase fluids such as gas and liquid, and it is impossible to control the temperature of the flow pipeline in sections, making it difficult to comprehensively Simulate the multiphase flow of different types of fluids in horizontal, vertical, and inclined pipes under varying pressure and temperature conditions
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[0021] The first step: close the eighth valve 27 and the ninth valve 30, open the reaction kettle 29 and all valves on the connecting pipeline of the test pipeline, and open the first valve 3;
[0022] Second step: turn on the vacuum pump 1 to evacuate the reaction kettle 29 and the test pipeline, and measure the vacuum pressure with the vacuum gauge 3;
[0023] The third step: when the reading of the vacuum gauge 3 is stable for a period of time, close the first valve 3, and then shut down the vacuum pump 1;
[0024] Step 4: open all valves on the test pipeline, and inject tap water into the test loop through the ninth valve 30;
[0025] Step 5: After the water injection is completed, stop the liquid filling pump 32 and close the ninth valve 30 of the water injection port;
[0026] Step 6: Open the eighth valve 27, inject the experimental gas in the high-pressure gas cylinder 56 into the reaction kettle 29, and the amount of feed is controlled by the gas mass flow controller...
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Abstract
The invention provides a temperature-controllable pressure-controllable oil-gas-water-solid multi-phase pipeline simulation device, which is composed of a vacuum pump, a valve, a vacuum gauge, a pressure gauge, a gas flow meter, a vacuum buffer tank, a natural gas compressor, and a visible rotating pipeline , temperature sensor, visual window, gas mass flow controller, reaction kettle, liquid filling pump, liquid storage tank, standpipe, liquid flow meter, gas cylinder, circulation pump, balance, low temperature box, temperature control water bath; the device is divided into It is a gas, liquid, and solid phase supply system, temperature control and heat preservation system, pressure control system, purge and vacuum system, and pipeline flow system. The device can simulate the multiphase flow of oil, gas, water and solid multiphase fluids and gas and liquid single-phase fluids in horizontal, vertical and inclined pipes under certain pressure and temperature conditions. It has simple structure, wide application range and easy operation. The advantage of convenience.
Description
technical field [0001] The invention relates to a temperature-controllable pressure-controlled oil-gas-water-solid multiphase pipeline simulation experiment device, and relates to the fields of development, storage and transportation of oil and natural gas. Background technique [0002] In the process of oil and natural gas development and transportation, because the products of oil and gas wells produced are often fluids with coexistence of oil, gas, water and solid media, gas-liquid-solid fluids often appear in horizontal, inclined or vertical pipelines and wellbores. , gas-solid, liquid-solid, liquid-liquid and other multiphase flow states. During the flow process in the pipeline or wellbore, with the change of pressure, temperature and pipeline inclination, phenomena such as slug flow and stratified flow will appear in the pipeline and wellbore, which will cause erosion and corrosion of the pipeline and wellbore, which are serious Threatening the safe operation of pipel...
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