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Rigid Bow Centralizers
Rigid Bow Centralizers are composed of hard steel bars and cast iron. These generally comes with fixed blade height and are majorly designed to set a casing or a hole size. Irrespective of the side-force, these rugged centralizers are perfect to be utilized in deviated well-bores. Also for performing diverse functions, these come in two types- Semi-rigid Bow Centralizer & High rigid Bow Centralizer. The work of a high rigid centralizer is to function as bearings during pipe rotation. This assists in setting down casing slips which are present on the surface and permits cement to completely surround casing for the development of cement sheath. By lessening the frictional force, these high rigid centralizers can provide smooth running, easy rotation and reciprocation. Hence, the Semi-rigid centralizer, showcases both attributes of high rigid and low bow-spring centralizers. They are double crested bows.
Key Points of Rigid Bow Centralizers