The device uses self-balance tubing casing liquid level structure and self change over throttle structure. It is the ideal one to locate thief zone of oil and water wells.
Max OD |
113 145 mm |
Sealing pressure difference |
20 MPa |
Closing pressure difference of self balance facility |
45 MPa |
Opening pressure difference of self balance facility |
3 4 MPa |
Two end connection threads |
7/8TBG |