TYPE 336 WELDED SEMI-POSITIVE CENTRALIZER – OTC (OVER THE COUPLING) IS A HINGED COLLAR, BOW SPRING CENTRALIZER WITH A SEMI-POSITIVE SPRING DESIGN SPECIFICALLY CREATED TO LACE OVER CASING COUPLINGS.
Starting, running, and restoring force tests performed in Top-Co’s Test Facility as per API specification 10D.
FEATURES
Designed to be run at hole size or slightly over gauge to minimize starting and running forces
Double bow design has increased restoring force compared to standard bow spring design
Ability to be laced over coupling eliminates the need for stop collars
Improved standoff for increased mud removal and cement placement
Ability to provide more than 95% standoff
Starting, running, and restoring force tests performed in Top-Co’s Test Facility as per API specification 10D.
FEATURES
Designed to be run at hole size or slightly over gauge to minimize starting and running forces
Double bow design has increased restoring force compared to standard bow spring design
Ability to be laced over coupling eliminates the need for stop collars
Improved standoff for increased mud removal and cement placement
Ability to provide more than 95% standoff
