Patent · US Active

Expandable mill and methods of use

US8141627B2 · kind B2 · utility

15Cited by

11References

26Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

George N. Krieg · Broussard, US
David Hebert · Shrewsbury, US
Graham J. Duplantis · Lafayette, US

Key dates

Filing date	Mar 26, 2009
Grant date	Mar 27, 2012
Priority date	—
Expiry date	Jul 4, 2029

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B37/02
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

In some embodiments, apparatus useful for cleaning at least part of the interior surface of a cylindrically-shaped member disposed in a subterranean well includes a housing and a plurality of retractable mill blades supported on the housing. The mill blades of such embodiments are capable of cleaning the entire circumference of the interior surface of at least a portion of the cylindrically-shaped member upon reciprocation of the housing.

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