Experimental devices for simulating erosion of tubing strings caused by sand production

An experimental device for simulating erosion of a tubing string caused by sand production, comprising:

• a high temperature autoclave;
• a circulating assembly, which is sealed and arranged in the high temperature autoclave, including a circulation loop including straight pipes and elbows, wherein:
• the straight pipes form pipe walls that include a left vertical section and right vertical section,
• a horizontal section of the circulation loop is provided with a test string,
• each of the left vertical section, the right vertical section, and the elbows of the circulation loop is provided with at least one sample of the plurality of samples, and
• the pipe walls and the elbows of the circulation loop are provided with a plurality of circular openings, each of the plurality of samples being embedded at one of the plurality of circular openings, and each of the plurality of samples being fixed to the circular opening of the pipe walls and the elbows of the circulation loop through a base, one or more screw bolts, and a sealing ring, the base being resistant to a high temperature, a high pressure, and corrosion;
• a power assembly including a high temperature and high pressure pump arranged on the circulation loop;
• a monitoring assembly including a high temperature and high pressure flowmeter and a temperature and pressure sensor for detecting the circulation loop, and the temperature and pressure sensor being communicatively connected with a PC;
• and
• a three-phase feeding assembly including a feeding pipe that is in fluid communication with the circulation loop, and the feeding pipe being connected with one or more corrosive gas tanks, a sand feeder, and one or more liquid tanks, respectively.