Patent attributes
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.
