BLOWOUT PREVENTER TEST JOINT ASSEMBLY FOR TESTING VARIABLE BORE RAMS, SHEAR RAMS AND ANNULARS

摘要

The invention discloses a test joint assembly for testing subsea BOP stack valves and annulars in one trip. The test joint assembly has an outer mandrel and a telescopically extendable inner mandrel. The inner mandrel seals against a bottom sub member using a bullnose sealing member.