Digger –Semi Rigid Centralizers are designed to pass through tight spots and doglegs. This device ensures high efficiency in casing jobs on Deviated and Horizontal wells. This Design makes these Centralizers act as a rigid centralizer under high side loads. The construction is with Hinges and a Non Welded Bow.
Features :
1.It has high Restoring force and high Stand Off with low Running Force.
2.Special zinc Phosphate and powder coating process to prevent from Rust and ensure stocking in the open for a long time.
Digger – Hinged Welded Semi Rigid Centralizer ensures high efficiency in casing. Welded Centralizer has more Restoring Force as compare to Non Weld Centralizer. The Centralizers have double crested Bow Spring strongly welded to the End Collar under required temperature and condition with extra low Hydrogen coated Electrodes, which assures ultimate strength and uniformity in every weld. Integral hinge folded on the inside stay intact even under extreme stress. The End Collars are designed with a reinforcing
Rib stamped into the End Collar to give maximum structural toughness.
Features :
1.These are shipped in half assembled condition for economical in freight and storage costs
2.Supplied with stop collar and hinge pin
3. Developed to exceeds API 10D standards
Note : Available in 4 1/2″ to 20 ” sizes. Any special sizes or combination can be made available on request.
1. Tubing or casing applications.
2. Reduced drag while running pipe.
3. The upset in center of the spring is designed to contact the casing when the bow spring has been deflected from 90% to 75% standoff (10% – 25% deflection).
4. Compared to conventional bow-spring centralizers, Tandem Rise bows
provide better standoff for more effective mud removal, which enhances the primary cement job and zonal isolation.
5. All sizes have been tested and validated to exceed API Specification 10D.
Recommended For Use With:-
1. Slip-on set screw stop collar.
Note : Available in 4-1/2″ to 30″ sizes. Any special sizes or combination can be made available on request.