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:
Apr. 28, 1998
Filed:
Sep. 18, 1996
Courtney W Adkins, Katy, TX (US);
Thurman B Carter, Houston, TX (US);
William A Blizzard, Jr, Houston, TX (US);
Richard M Ward, Conroe, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
The present invention, in one aspect, discloses a system for selectively anchoring a wellbore tool at a desired location in a wellbore or tubular member such as casing or tubing; such a system with a selectively settable anchor assembly that has a piston that is moved upwardly by fluid under pressure from the surface thereby moving one or more movable slips out from a body of the anchor assembly to set the anchor assembly in place; and such a system with a whipstock connected to the anchor assembly. Fluid under pressure pumped from the surface down a workstring to which the system is connected flows to the anchor assembly through or adjacent the whipstock. In one aspect a mill (or mills) is releasably connected to the whipstock. In one aspect, fluid under pressure flows through or adjacent the mill(s) to the whipstock. In one aspect a selectively actuable valve assembly is provided for selectively controlling the flow of fluid under pressure from an inlet end of the valve assembly out through an outlet end thereof for flow, e.g., to a mill, whipstock and/or anchor assembly. In one aspect such a valve assembly is used with a system as previously described to selectively provide actuating fluid under pressure to an anchor assembly as described to set the movable slip(s) thereof and, in one aspect, to then provide jetting fluid to jetting ports of the mill(s) upon release of the mill(s) from a whipstock.