The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 11, 2009

Filed:

Feb. 23, 2007
Applicants:

Mohan L. Soni, Katy, TX (US);

Calvin J. Stowe, Ii, Bellaire, TX (US);

Inventors:

Mohan L. Soni, Katy, TX (US);

Calvin J. Stowe, II, Bellaire, TX (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

Casing window milling assemblies include a conically-shaped section disposed along the tubular of the assembly. This conically-shaped section is a non-cutting portion that is preferably tapered toward the mill head. The conically-shaped section may be part of a flex-joint section of the assembly. Alternatively, the conically-shaped section may be its own sub-assembly secured above the flex-joint. In still another embodiment, the conically-shaped tapered section may be part of the upper mill section of the casing window milling assembly. In one embodiment, the conically-shaped section is disposed along the upper mill section below one or more secondary mills such as a reaming mill and a honing mill.


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