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:
Jul. 08, 2003

Filed:

Jun. 28, 2001
Applicant:
Inventors:

Ronald G. Dusterhoft, Katy, TX (US);

Syed Hamid, Dallas, TX (US);

Roger L. Schultz, Aubrey, TX (US);

Robert Ken Michael, Plano, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/304 ; E21B 2/902 ;
U.S. Cl.
CPC ...
E21B 4/304 ; E21B 2/902 ;
Abstract

An apparatus ( ) and method for progressively gravel packing an interval of a wellbore ( ) is disclosed. The apparatus ( ) comprises a sand control screen ( ) that is positioned within the wellbore ( ) and a tubular member ( ) that is disposed within the wellbore ( ) forming a first annulus ( ) with the sand control screen ( ) and a second annulus ( ) with the wellbore ( ). The tubular member ( ) initially prevents fluid communication between the first annulus ( ) and the second annulus ( ). Once the gravel packing operation begins, however, the tubular member ( ) selectively allows fluid communication from the first annulus ( ) to the second annulus ( ) by progressively establishing fluid communication between the first annulus ( ) and the second annulus ( ) from a first end of the interval ( ) to a second end of the interval ( ).


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