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:
Jan. 13, 2004

Filed:

Dec. 19, 2001
Applicant:
Inventors:

Travis T. Hailey, Jr., Sugar Land, TX (US);

Colby Munro Ross, Carrollton, TX (US);

Robert Lester Thurman, Carrollton, TX (US);

Robert Craig Hammett, Garland, TX (US);

David Leslie Lord, Marlow, OK (US);

Imre I. Gazda, Fort Worth, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/308 ;
U.S. Cl.
CPC ...
E21B 4/308 ;
Abstract

An apparatus for gravel packing a production interval ( ) of a wellbore ( ) comprises first and second sand control screen assemblies ( ) connected downhole of a packer assembly ( ) and a cross-over assembly ( ) that provides a communication path ( ) downhole of the packer assembly ( ) for a gravel packing fluid and a communication path ( ) uphole of the packer assembly ( ) for return fluids. A wash pipe assembly ( ) extends into the first and second sand control screen assemblies ( ) forming an annulus ( ) therebetween. A valve ( ) is positioned within the wash pipe assembly ( ) in a location between the first and second sand control screen assemblies ( ). The valve ( ) is actuatable from a closed position to an open position when the beta wave ( ) is proximate the location of the valve ( ).


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