Cos’s Hinged Bolted Stop Collar is a single piece collar and the set crews are provided on the outer circle of the periphery which is meant for installing and is directly installed on the pipe by slipping on the casing without any hassle. It is fabricated using ductile iron therefore it has a good impact and fatigue capability. These kinds of collars are used in place where high axial loads are expected.
This works well in the installation of different cement baskets and various types of centralizers
These are available in 2 7/8" to 30 " sizes.
COS’s Slip on Set Screw Stop Collars is single piece Collar that uses one row of set screws to induce the gripping force. It is used where high axial loads are expected, and is effective where low annular clearance is encountered. This Stop Collar is easy to install because it simply slides onto the casing.
These are available in 2 7/8" to 30 " sizes. Any special sizes or combination can be made available on request.
COS's Aluminium Spiral Vane Solid Rigid Centralizers are developed in response to the need for better cementing in high deviated and horizontal well. These are designed to provide optimum flow and its fins or blades overlap the entire 360-degree open hole circumference. Therefore its reduced flow area between the spiral provides and creates vortex motion to increase fluid velocity with direction. Even without rotation, the relived angle fins/ blades induce turbulent flow for improved cutting and filter cake removal.
The angle of the uniquely designed spiral fin produced maximum fluid swirl, thus maximum removal of debris around the casing in any type of hole. These Centralizers withstand high well bore temperature while providing maximum horizontal standoff.
These are available in 2 7/8" to 30 " sizes. Any special sizes or combination can be made available on request.