Patent ID: 6510895
Filing Date: 2003-01-28
Classification: E21B

Abstract:
A mechanically energized annular packoff seal cartridge for metal-to-metal sealing with substantially concentrically arranged first and second tubular members disposed annularly spaced relation and defining an annulus therebetween, comprising:a generally tubular pressure responsive seal energizing mandrel having inner and outer tapered seal actuating surfaces and having at least a portion thereof disposed for entry into said annulus; inner and outer metal seal rings being maintained in relatively movable assembly with said generally tubular pressure responsive seal energizing mandrel and disposed for metal-to-metal sealing respectively with said first and second tubular members and being disposed for actuating contact by said inner and outer tapered seal actuating surfaces; an annular seal bushing element adapted for entry into said annulus and defining a support for restraining linear movement of said inner and outer metal seal rings; and upon application of pressure induced force to said generally tubular pressure responsive seal energizing mandrel, said inner and outer tapered seal actuating surfaces urging said inner and outer metal seal rings in radially opposite directions and into metal-to-metal sealing relation respectively with said first and second tubular members for packoff sealing of said annulus.