Casing centraliser

Details Casing centraliser Casing centraliser

E - Fixed Constructions

21

B

E21B 17/10 (2006.01)

Patent

CA 2509062

A casing centraliser (10) includes an annular body (12) and a substantially cylindrical bore (16) extending longitudinally through the body (12). A number of blades (14) extend longitudinally along the body (12) and are circumferentially distributed around the body (12) to define a flow path between each adjacent pair of blades (14). Each flow path provides a fluid flow path between longitudinally opposite ends of the centralises (10) and each blade (14) has a radially outer edge providing a well bore contacting surface. The cylindrical bore (16) through the body (12) is a clearance fit around casing intended to be centralised by the centralises (10). The centralises (10) is typically manufactured from a material which includes zinc and is preferably a zinc alloy.

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