Activation collar BUR-MA
It serves for liner tooling activation.
In provides free circulation of drilling mud with subsequent leak-free shutoff of casing string flow passage.
In provides free circulation of drilling mud with subsequent leak-free shutoff of casing string flow passage.
It has high resistance to abrasion and allows flushing with fluid.
It does not require any additional operations during lowering. Activation (flow passage shutdown) is performed using a ball thrown into the liner.
Collar duplicates check valve operation after activation.
It does not require any additional operations during lowering. Activation (flow passage shutdown) is performed using a ball thrown into the liner.
Collar duplicates check valve operation after activation.
SPECIFICATIONS