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:
Oct. 03, 1989
Filed:
Jun. 30, 1988
Kenneth D Caskey, Duncan, OK (US);
Scott MacLaughlin, Palm Beach Gardens, FL (US);
Halliburton Company, Duncan, OK (US);
Abstract
A plugging apparatus for a gravel packer. The apparatus includes a plug comprising an operating mandrel slidably received in an outer mandrel. A collet is positioned on the outer mandrel. Actuation of the operating mandrel allows engagement of the collet with a threaded portion in the packer for locking the collet into such engagement. The plug is positioned in the packer and actuated to a locking position by use of a setting tool which has a portion press fit on a ring spring mounted on the operating mandrel. Once the collet is in the locked position, the setting tool may be removed from the ring spring. The plug may be retrieved by a retrieving tool which has a collet which engages the ring spring. The retrieving tool is used to actuate the operating mandrel to disengage the collet from the threaded portion of the packer and then to retrieve the plug from the packer.