DEVICE FOR CENTERING A SENSOR ASSEMBLY IN A BORE

Abstract: a centraliser comprises arm assemblies pivotally connected between first and second support members. each arm assembly comprises a first arm pivotally attached to one of the first and second support members by a first pivot joint having a first pivot axis, a second arm assembly pivotally attached to the other one of the first and second support members by a second pivot joint having a second pivot axis, the first and second arms pivotally attached together via a third pivot joint having a third pivot axis. the first arm comprises a fork section extending around opposite sides of the respective first or second support member to position the first pivot axis radially within an outer diameter of a mandrel on which one or both support members move.

Inventor(s): Stephen Peter MCCORMICK

CPC Classification: E21B47/01 (Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like)

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