Centraliser

摘要

A centraliser (10) for centralising a tubular (12) within a conduit is described. The centraliser comprises a centraliser body, at least one finger (14) pivotally mounted to the body and at least one collar (20), the/each collar being moveable with respect to the at least one finger. Relative movement between the/each collar and the body pivots the at least one finger from a run-in configuration to an extended configuration.

主权项

1. A centraliser for centralising a tubular within a conduit, the centraliser comprising:
a body; at least one finger pivotally mounted to the body at or adjacent to a first end of the at least one finger; and at least one collar being moveable with respect to the at least one finger, wherein the at least one finger defines a conduit engaging surface at a second end of the at least one finger opposite to the first end of the at least one finger, wherein the at least one finger defines at least one track and the at least one collar defines at least one lug which engages said at least one track, or the at least one collar defines at least one track and the at least one finger defines at least one lug which engages said at least one track, wherein the at least one collar is moveably connected to the at least one finger by means of the at least one lug moving in the at least one track, and wherein relative movement between the at least one collar and the body causes the at least one lug to move in the at least one track so as to pivot the at least one finger relative to the body from a run-in configuration to an extended configuration, and said at least one finger extends outwardly no further than an outer surface of the body or an outer surface of the at least one collar when the at least one finger is in the run-in configuration.