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US 2021/0207443 A1Published application
Centralizer for downhole probes
AssigneeEvolution Engineering Inc.
InventorsAaron W. LOGAN, Justin C. LOGAN, Patrick R. DERKACZ
Life of this patent
Estimating the term…
Abstract
An assembly for use in subsurface drilling includes a downhole probe supported by a centralizer. The centralizer comprises a tubular member that extends around the downhole probe. A wall of the centralizer is fluted to provide inward contact points that support the downhole probe and outward contact points that bear against a bore wall of a section of drill string. The downhole probe may be supported for substantially its entire length.
Claims25
(canceled)
A downhole assembly comprising:
- a drill string section having a bore extending longitudinally through the drill string section;
- a downhole probe located in the bore of the section;
- and
- a centralizer in the bore, the centralizer comprising a plurality of tubular members, each of the tubular members having a wall extending around the downhole probe, the wall formed to contact an inside surface of the bore and an outside surface of the downhole probe, a cross-section of the wall following a path around the downhole probe that zig zags back and forth between the outside surface of the downhole probe and the inside surface of the bore wall.
1 more element
A downhole assembly comprising:
- a drill string section having a bore extending longitudinally through the drill string section;
- a downhole probe located in the bore of the section;
- and
- a centralizer in the bore, the centralizer comprising a plurality of centralizer members arranged end to end, each of the centralizer members formed to contact an inner wall of the bore along a length of the centralizer member at a plurality of locations spaced apart around a circumference of the bore and to contact the probe along a length of the centralizer member at a plurality of locations spaced apart around a circumference of the probe.
1 more element
Dependencies are inferred from the claim text.