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. 01, 1992
Filed:
Jan. 18, 1991
Eric P Lubitz, Hartsville, SC (US);
Scott T MacLaughlin, Royal Palm Beach, FL (US);
Halliburton Company, Duncan, OK (US);
Abstract
A coiled tubing set inflatable packer, bridge plug and releasing tool therefor. The packer and bridge plug comprise an adapter with a mandrel slidably disposed therein. A pressure actuated piston releases a locking ball between the mandrel and adapter during an inflation cycle and allows movement of the mandrel such that the locking ball again locks the mandrel and adapter when the mandrel is moved to a sealed position wherein the inflatable packer element is sealingly closed. The inflatable packer of the present invention comprises a valve for opening a central passageway through the packer. A J-slot in the packer allows a plurality of inflation cycles to insure proper setting of the packer prior to actuation of the valve. The bridge plug of the present invention comprises a bypass passage therethrough which may be opened by upward movement of a central mandrel. A releasing tool is provided for releasing the packer or bridge plug in the well bore after setting of the packer element. A releasing plug or releasing ball is used to move a releasing mandrel and disengage locking dogs from an overshot on the releasing tool so that the releasing tool may be removed from the well bore.