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. 05, 2006
Filed:
Sep. 09, 2002
Greg Marshall, Magnolia, TX (US);
Greg Marshall, Magnolia, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
The present invention generally relates to a disconnect for use in a wellbore to separate a tubular string from a stuck wellbore component. In one aspect, the invention includes a disconnect with a first portion and a second portion and a lock nut preventing the separation of the two portions. When a predetermined fluid force is applied to a piston in the disconnect, a tensile sleeve fails and the first and second portions of the disconnect separate, thereby leaving a portion of the disconnect in the wellbore with the stuck component. In one embodiment, the tensile sleeve's failure permits an annular piston to dislodge a wedge sleeve from the lock nut, thereby permitting separation of the first and second portion of the disconnect.