Patent ID: 9097064
Filing Date: 2015-08-04
Classification: E21B

Abstract:
1. A snubbing assembly for insertion and removal of tubular members from a wellbore, the snubbing assembly comprising: a first ram assembly positioned above a blowout preventer; a spool positioned above the first ram assembly; a second ram assembly positioned above the spool; an annular blowout preventer positioned above the second ram assembly; and a snubbing jaw assembly positioned above the annular blowout preventer, wherein the snubbing jaw assembly is sized to pass within the recessed region of the mast, wherein the snubbing assembly is selectively usable to prevent upward motion of a tubular member during snubbing operations and to permit upward and downward motion of tubular members, tools, conduits, or combinations thereof, through the snubbing assembly during non-snubbing operations, and wherein the snubbing assembly is positioned beneath a vertical portion of a mast having a recessed region defined by struts angled outwardly from the mast, wherein the recessed region is sized to accommodate the snubbing assembly.