DRILL COLLAR WITH INTEGRATED PROBE CENTRALIZER

摘要

An assembly for use in subsurface drilling includes a downhole probe supported in a drill string section by centralizing features that are integral with the drill string section. A bore wall of the drill string section is fluted to provide inward contact points that support the downhole probe. The downhole probe may be supported for substantially its entire length. A vibration damping and/or electrically insulating material may optionally be provided between the downhole probe and the drill string section.

主权项

1. A downhole assembly comprising:
a drill string section having a bore extending longitudinally through the drill string section and a downhole probe located in the bore of the section wherein the drill string section comprises centralizing features extending inwardly from a wall of the bore, the centralizing features supporting the downhole probe in the bore and the centralizing features are arranged to provide passages for the flow of drilling fluid around an outside of the downhole probe between the centralizing features.