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. 04, 1997
Filed:
Jul. 03, 1995
Applicant:
Inventors:
Steve Owens, Katy, TX (US);
Brett Bouldin, Pearland, TX (US);
Napoleon Arizmendi, Magnolia, TX (US);
Assignee:
PES, Inc., The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166288 ; 166 64 ; 166302 ; 166317 ;
Abstract
An apparatus and method for selectively restricting fluid flow in a well or well conduit. A dissolvable core material is positioned in the well and is isolated from the well fluids with an inpermeable sheath. The sheath is punctured with a control mechanism or other device so that the sheath is breached. The fluid dissolves the core material and permits fluid flow through the well or well conduit. The sheath can be punctured by pressurizing the well fluid, or by controlling the fluid pressure to activate a pressure sensitive control mechanism.