Patent ID: 6032736
Filing Date: 2000-03-07
Classification: E21B

Abstract:
A multi-gage blowout preventer test tool for testing different size ram and annular subsea blowout preventers in one trip, comprising:an inner tube assembly;a lower connecting member at a lower end of said inner tube assembly for connecting said inner tube assembly to a wellheadhead sealing tool;an outer test tube assembly surrounding said inner tube assembly and having a plurality of longitudinally spaced pipe gage diameters formed on an exterior surface thereof corresponding in size to outside diameters of different drill pipe diameters;releasable and connectable coupling means at a lower end of said outer test tube assembly for selective connection to said lower connecting member to allow axial telescoping movement of said outer test tube assembly relative thereto and to said inner tube assembly in a released condition, and to prevent relative movement relative thereto in a connected condition;an upper connecting member at an upper end of said outer test tube assembly for connecting said test tube assembly to a drill pipe string and moving said outer test tube axially;in said connected condition, a first set of said longitudinally spaced pipe gage diameters of said outer test tube assembly being positioned within said blowout preventers for testing said blowout preventers against said first set of pipe gage diameters; andin said released condition, a second set of said longitudinally spaced pipe gage diameters of said outer test tube assembly being positioned within said blowout preventers for testing said blowout preventers against said second set of pipe gage diameters.