Activation Sub
Max OD in:
4.567 / 5.236
Liner size in:
4.000 / 4.500
Max OD in:
4.500 /.5.000 / 6.260 / 7.913
Liner size in:
4.000 / 4.500 / 5.500 / 7.000
B-series activation sub is designed to provide circulation between completion toolstring and annulus. B-series activation sub is kept open while running the liner in а well to allow circulation through the tubing string. The sub is closed bу pumping а ball to indicate bump pressure.
M-series activation sub is designed to provide free circulation of the drilling fluid with а subsequent pressure-tight mechanical closing. M-series activation Sub is used in wells with liners of the corresponding size.