Interference-fit stop collar and method of positioning a device on a tubular

摘要

A stop collar is assembled using a method including the steps of receiving a bore of a base having a set of fingers extending along an exterior of a tubular, receiving a bore of a sleeve onto the tubular adjacent the set of fingers, and receiving the sleeve onto the set of fingers in an interference-fit. In alternate embodiments, the base comprises a plurality of angularly distributed fingers and/or the base comprises a gap to permit conformance of the base to the tubular. A fingerless base may cooperate with one or more separate fingers to form a base. In an embodiment of the method, the sleeve may be thermally expanded prior to the step of receiving the sleeve onto the set of fingers. The sleeve may be heated to expand the bore prior to being received onto the set of fingers.

主权项

1. An installation tool to secure an interference-fit stop collar on a tubular, comprising:
a first body having a bore to receive the tubular; a second body having a bore to receive the tubular; and a drive member coupled with the first body and the second body, wherein actuation of the drive member from an elongate configuration to a retracted configuration adducts a sleeve engaged by an engaging surface of the first body toward a base having fingers extending axially therefrom, the base being engaged by an engaging surface of the second body.