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:
Mar. 07, 1995
Filed:
Jul. 31, 1992
Applicant:
Inventors:
Holley M Cornette, Houston, TX (US);
Robert K Bethel, Houston, TX (US);
Elmer R Peterson, Woodlands, TX (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166 51 ; 166 74 ; 166205 ;
Abstract
A gravel pack well tool comprised of a workstring having a gravel pack screen thereon wherein the workstring can be rotated without applying any substantial torque to the screen jacket which forms part of the gravel pack screen. This allows the workstring to be rotated in either direction during installation or removal of the gravel pack screen without damaging the screen jacket. The gravel pack screen is comprised of a fluid-permeable base pipe having a screen jacket rotatably mounted thereon.