Major functions

1. can use the ultrasound imaging to simulate the damage of artificial wellbore wall caused by drilling fluid and measure the filtration velocity of the wall;
2. can construct two models——pressure transmission and chemosmosis, which can be used to measure low permeability and membrane efficiency of shale;
3. can load axial/confining pressure steplessly when setting its rating value, control it automatically and monitor real-time. The axial/confining pressure and its rating value can be displayed on the screen.
4. has the data acquisition and processing system controlled by operation interface of win2000/XP.

Key Technical Parameters

1. axial/confining pressure: 0 ~ 50MPa.
2. the upper and lower pressure: 0 ~ 15 MPa.
3. operating pressure of artificial borehole wall : 0 ~ 10 MPa.
4. operating temperature: room temperature ~ 150 ℃.
5. ultrasonic sensors: 250KHz
6. size: artificial borehole wall: Φ110×Φ90×300mm; core: Φ25×50mm.