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.
Patent No.:
Date of Patent:
Dec. 16, 1997
Filed:
Sep. 27, 1995
Applicant:
Inventor:
Stephen A Graham, Bellaire, TX (US);
Assignee:
Natural Reserves Group, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166313 ; 166 50 ; 1661176 ;
Abstract
In a well having at least one deviated wellbore drilled as an extension of a primary wellbore, a method and apparatus are disclosed for selectively re-entering a deviated wellbore. The method comprises running a diverter assembly into the primary wellbore proximate the opening at the junction of the primary wellbore and the deviated wellbore, aligning the diverter assembly having an upper whipstock member having a diverter face to position the diverter face to facilitate diversion of tools for re-entry into the deviated wellbore, and anchoring the diverter assembly in the primary wellbore.