Patent · US Active

Reaming and stabilization tool and method for its use in a borehole

US7584811B2 · kind B2 · utility

9Cited by

95References

15Claims

0Family size

Assignee

Security DBS NV/SA · BE

Inventors

Philippe Fanuel · Brussels, BE
Jean-Pierre Lassoie · Anderlecht, BE
Olivier Mageren · Charleroi, BE
Luis Quintana · Jette, BE
Erik Stein Moi · Hommersåk, NO
Erik Dithmar · Genappe, BE

Key dates

Filing date	Jun 25, 2008
Grant date	Sep 8, 2009
Priority date	—
Expiry date	Jun 25, 2028

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/322
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In accordance with an embodiment of the present invention, a drilling tool includes a tubular body defining a longitudinal axial cavity extending therethrough and defining at least one cutter element recess. The drilling tool also includes a cutter element at least partially disposed within the at least one cutter element recess and includes at least first and second cutting arms at least substantially disposed within the cutter element recess in a retracted position. The first and second cutting arms are operable to move from the retracted position to an extended position in which the first and second cutting arms extend at least partially beyond a periphery of the tubular body. The first and second cutting arms and the tubular body enclose a space when the first and second cutting arms are in the extended position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.