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:
Oct. 06, 2015

Filed:

May. 20, 2015
Applicant:

Alaskan Energy Resources, Inc., Anchorage, AK (US);

Inventor:

Lee Morgan Smith, Anchorage, AK (US);

Assignee:

ALASKAN ENERGY RESOURCES, INC., Anchorage, AK (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/26 (2006.01); E21B 17/22 (2006.01); E21B 7/28 (2006.01);
U.S. Cl.
CPC ...
E21B 10/26 (2013.01); E21B 7/28 (2013.01);
Abstract

A bidirectional dual eccentric reamer which can form a larger wellbore than originally drilled and a wellbore larger than the drill bit diameter. The bidirectional dual eccentric reamer can have a shaft with a longitudinal axis supporting a plurality of reamer portions. The reamer portions have a plurality of helical blades of varying thicknesses. The plurality of helical blades can have a plurality of cutting nodes and cutting inserts. The plurality of helical blades can have a center of eccentric rotation which is offset from the longitudinal axis, thereby creating an eccentric rotation. This allows for the formation of a larger wellbore than originally drilled and a wellbore larger than the drill bit diameter.


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