TFL assembly for a dual diameter flow-line/riser system and flow

Details TFL assembly for a dual diameter flow-line/riser system and flow TFL assembly for a dual diameter flow-line/riser system and flow

1988-02-05

1989-07-04

Kisliuk, Bruce M.

Wells

Submerged well

Riser

166170, 166177, 166153, 166156, 15104061, E21B 2310, E21B 3704, B08B 904

Patent

active

048441651

ABSTRACT:
A TFL assembly is disclosed for use in a dual diameter flow-line/riser system which includes a small diameter flow-line section and a large diameter riser section. The assembly comprises a pig fitting in the small diameter flow-line section and a pig catching tool fitting in the large diameter riser section. The pig catching tool comprises a central opening which is sealed off by the pig upon joining said pig and tool after entry of the pig from the small diameter flow-line section into the large diameter riser section.

REFERENCES:
patent: 2382578 (1945-08-01), Penick
patent: 3020964 (1962-02-01), Graham et al.
patent: 3616850 (1971-11-01), Scott
patent: 3751932 (1973-08-01), Matthews, Jr.
patent: 3961493 (1976-06-01), Nolan, Jr. et al.
patent: 4407364 (1983-10-01), Johnston
patent: 4624312 (1986-11-01), McMullin

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