The Progressive Sliding Sleeve Circulating Sub is designed to open the tubing string to production after milling or drilling operations have been completed. The production tubing is used in the drilling operation and is left in the hole for production eliminating a tubing trip.
Hydraulic release that accommodates shear pressure changes in the field. Offers a wide range of shear value options.
Pressure balanced sleeve to prevent premature opening of the ports. Ports cannot open until the ball is seated and pressure applied.
Standard with field proven poppet style drill pipe float valve for positive reverse flow check.
High strength and high torque.
May be run as part of a completion or with service tools.
Designed to capture ball after shear to prevent interference with production.