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:
Nov. 23, 1999
Filed:
Aug. 25, 1997
Applicant:
Inventors:
Andrew J Tucker, Lafayette, LA (US);
Harold S Bissonnette, Lafayette, LA (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166373 ; 166386 ; 1663344 ;
Abstract
A system for isolating a production pipeline string from the flow of fluids includes an isolation pipe string assembly. The isolation pipe string assembly is positioned by a shifting collet assembly so that in a first position fluids are allowed to the well bore through a sand control production screen. The shifting collet assembly is then used to position the isolation pipe string assembly in a second position wherein seals are placed both above and below the sand control production screen so that fluids are not allowed to re-enter the well bore.