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. 11, 2016

Filed:

Dec. 31, 2013
Applicant:

Shellcon As, Lillehammer, NO;

Inventor:

Svein Hellvik, Lillehammer, NO;

Assignee:

SHELLCON AS, Lillehammer, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/55 (2006.01); E21B 10/42 (2006.01); E21B 17/07 (2006.01); E21B 10/60 (2006.01);
U.S. Cl.
CPC ...
E21B 10/42 (2013.01); E21B 10/55 (2013.01); E21B 10/602 (2013.01); E21B 17/07 (2013.01);
Abstract

A drill bit with fixed cutter elements with a hollow upper conical pin connector connectable to the lower module of a drill string, where the upper conical pin connector has a transition to an upper cylindrical module with a central channel for supplying bore fluid from the drill string, equipped with, a lower bore holding a cylindrical socket from the lower module, connecting the upper and lower modules of the drill bit, where the central channel continues down through the lower module and branches out into nozzle channels with nozzles ending in the recesses in between the wings with fixed PDC-cutters, wherein elastic shock-absorber elements are arranged in recesses in the cylindrical wall of the bore, in the upper cylindrical module, and the elastic shock-absorbers are assembled on the bolts extending into the cylindrical socket of the lower module.


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