COMPACT BAIL SUPPORTED FILL UP AND CIRCULATION TOOL

摘要

The laterally rotating height of a fill up and circulating tool that is mounted on one of the bails supporting an elevator is made shorter with integration of design components. A power cylinder features a hollow piston which integrates the mud line connected to the fill up tool. The hollow piston forms an integral part of the mud line. The mud line has an exterior slot with a longitudinal and a spiral component into which a pin extends that is supported by the cylinder. As the mud line descends the fill up tool moves initially axially followed by rotational movement to align with a sting for connection thereto. Raising the mud line reverses the movement pattern. The fill up tool is cantilevered from the mud line for its sole support. Height savings allows tool use with bails of varying lengths without interference.