Gas handler, riser assembly, and method

摘要

Method, riser assembly and gas handler for diverting gas from a riser. The riser assembly includes a riser having a first end and a second end and a conduit extending from the first end to the second end; a gas handler connected to the riser and provided between the first end and the second end, the gas handler having an external casing; plural pipes attached to an outside of the riser such that at least one pipe of the plural pipes enters through the external casing; and a gas vent pipe configured to start at the gas handler and extend towards the second end of the riser and the gas vent pipe is further configured to divert a gas from the gas handler through the outside of the riser.

主权项

1. A gas handler for use with a riser assembly, comprising:
an external casing having a central passage; an elastomeric body surrounding the passage that is movable by a piston to a closed position blocking upward flow through the central passage; a gas vent conduit in fluid communication with the central passage; a valve sleeve that selectively blocks and opens fluid communication between the central passage and the gas vent conduit; a gas vent pipe configured to start at the gas vent conduit of the gas handler, and to divert a gas away from the gas handler; and a plurality of pipes having flow paths that pass through the external casing of the gas handler alongside the central passage.