1. Overview
The equipment is a multi-functional experimental system, which can simulate the filtration characteristics of drilling mud and fracturing fluid under the conditions of formation pressure and temperature, evaluate the filtration reduction process and the performance of filtration reduction additives; evaluate the reservoir sensitivity; evaluate the damage of mud and fracturing fluid to the reservoir and the damage at different depths; at the same time, it can also formulate test plans according to different on-site processes, and conduct water drive tests, gas drive tests, etc.
The system has the following functions:
1. Simulate the dynamic filtration of drilling fluid and fracturing fluid on the wellbore wall;
2. Assess the damage of drilling fluid, completion fluid, fracturing fluid and other liquids to the reservoir and determine the damage at different depths;
3. Sensitivity evaluation of reservoir velocity sensitivity, water sensitivity, stress sensitivity and particle migration;
4. Measurement of gas, liquid permeability and positive and reverse permeability;
5. Other water drive test, gas drive test, etc.
Main technical indicators of 2.
1. confining pressure: 84 MPa
2. Flow pressure: 70 MPa
3. Back pressure: 70 MPa
4. Pressure difference: 70 MPa
5. Temperature: 200 ℃
6. Liquid flow rate: 50 ml/min
7. Gas injection pressure: 30 MPa
8. Gas flow rate: 0~1000 ml/min (under standard condition)
Material: The wetting material in contact with the test liquid is 316 stainless steel