Invention Grant
- Patent Title: Multi-circulation valve apparatus and method
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Application No.: US14302507Application Date: 2014-06-12
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Publication No.: US09863214B2Publication Date: 2018-01-09
- Inventor: Gerald J. Cronley
- Applicant: Knight Information Systems, LLC
- Main IPC: E21B34/10
- IPC: E21B34/10 ; E21B23/06 ; E21B23/04 ; E21B7/08 ; E21B47/09 ; E21B7/06 ; E21B34/00

Abstract:
A valve apparatus for in a wellbore. The apparatus may include: a housing fluidly connected to a work string, with the housing having an internal portion having a guide pin; a mandrel concentrically disposed within the internal portion of the housing, the mandrel having a piston attached at a first end of the mandrel and a mandrel cap attached at a second end of the mandrel, and wherein the mandrel contains a circulation port and a jet positioned within the piston, the jet operatively configured to receive the fluid and create a pressure drop during fluid flow through the jet; a guide bushing disposed about the mandrel, the guide bushing having a predetermined guide path contained on the guide bushing and wherein the predetermined guide path is operatively associated with the guide pin; and, a spring operatively disposed within the mandrel. A method for setting a down hole tool in a wellbore is also disclosed.
Public/Granted literature
- US20150361764A1 Multi-Circulation Valve Apparatus and Method Public/Granted day:2015-12-17
Information query