Patent ID: 6142226
Filing Date: 2000-11-07
Classification: E21B

Abstract:
A packer setting tool of the type which is set by displacing a mandrel relative to an outer slip assembly thereof, the tool comprising:a generally tubular mandrel assembly having a flow passage formed therethrough and a first port formed through a sidewall thereof, the mandrel assembly being attachable to the packer mandrel;a piston reciprocably disposed relative to the mandrel assembly in response to fluid pressure in the first port;an isolation structure positionable in a selected one of first and second positions relative to the mandrel assembly, the isolation structure blocking fluid communication between the flow passage and the first port in the first position, and the isolation structure uncovering the first port and permitting fluid flow between the first port and the flow passage in the second position; anda circulation valve selectively permitting and preventing fluid flow through a second port formed through the mandrel assembly sidewall, the circulation valve permitting fluid communication between the flow passage and the exterior of the setting tool through the second port when the isolation structure is in the first position, and the circulation valve preventing fluid flow through the second port when the isolation structure is in the second position.