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Dual Circulating Sub
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Thru Tubing Technology
Dual Circulating Sub
The Dual Circulating Sub is designed as a circulating safety component within the BHA. The design features a Shear-Out Ball Seat coupled with a Burst Disc.
Product summary
The Dual Circulating Sub is designed as a circulating safety component within the BHA. The design features a Shear-Out Ball Seat coupled with a Burst Disc.
In the event that circulation is lost during a coiled tubing operation, an increase in applied pressure to the tubing will burst the disc, which will regain a sufficient circulation rate to pump a ball.
Pressure can then be applied to the tubing to shear the shear screws and shift the piston to regain maximum circulation.
Features
Designed as a circulating safety component within the BHA
Design features include a shear out ball seat coupled with a burst disc
Benefits
Field redressable
Simple drop ball design to activate