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:
Sep. 14, 1976
Filed:
Apr. 07, 1975
Amareswar Amancharla, Dallas, TX (US);
Otis Engineering Corporation, Dallas, TX (US);
Abstract
A device for converting a well packer to a bridge plug for closing off flow along a well bore to isolate adjacent portions of the well bore on opposite sides of the packer, including a tubular sub connectible on the lower end of a well packer and a frangible closure plate supported in sealed relationship in the sub across the bore of the packer for closing off flow through the packer. The frangible plate is installed in the packer at the surface prior to setting the packer in the well bore and thereafter is destroyed without removal of the packer from the well bore to establish communication through the packer. The plate is insulated against vibration, withstands high hydraulic loads from both sides while fragmenting responsive to very low mechanical loads, and expends in small pieces to give a full bore opening without obstruction.