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:
Jun. 13, 2000

Filed:

Mar. 24, 1998
Applicant:
Inventors:

Joseph D Parlin, Plano, TX (US);

John C Gano, Carrollton, TX (US);

Tommie A Freeman, Flower Mound, TX (US);

James R Longbottom, Magnolia, TX (US);

Dana R Dale, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166313 ; 166 50 ; 1661176 ;
Abstract

A lateral wellbore junction is formed by methods and apparatus described herein. In one described embodiment, an apparatus includes a section of casing and a sleeve axially reciprocably disposed relative to an opening formed through a sidewall of the casing. In one described method, the casing section is positioned within a parent wellbore, the sleeve is shifted to provide access through the opening, and a lateral wellbore is drilled by passing cutting tools through the opening.


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