Arrangement for the removal of cuttings and gas arising from...

Details Arrangement for the removal of cuttings and gas arising from... Arrangement for the removal of cuttings and gas arising from...

2005-04-12

2005-04-12

Neuder, William (Department: 3672)

Wells

Submerged well

Means removably connected to permanent well structure

C166S084100, C175S007000

Reexamination Certificate

active

06877565

ABSTRACT:
An end piece arrangement is mounted on an end of a pipe sleeve to close off the annular passage between the pipe sleeve and drill stem and to divert an upward flow of sludge, cuttings and gas into a conduit system to transport the flow to a remote location. In one embodiemnt, the arrangement is a self-contained unit that houses seal rings to seal against the drill stem. In another embodiment, the arrangement includes separate components; i.e. a housing mounted on the pipe sleeve to divert the upward flow and a seal unit mounted on the drill stem and rotatably mounted in the housing.

REFERENCES:
patent: 4326584 (1982-04-01), Watkins
patent: 4444250 (1984-04-01), Keithahn et al.
patent: 4456063 (1984-06-01), Roche
patent: 5010966 (1991-04-01), Stokley et al.
patent: 20030182997 (2003-10-01), Williams

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