Filter for fluid circuits

Details Filter for fluid circuits Filter for fluid circuits

1996-04-30

1998-04-14

Suchfield, George A.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166205, 166228, 166348, 166374, 166382, 166386, E21B 3410, E21B 4301, E21B 4308

Patent

active

057381720

ABSTRACT:
The invention relates to a filter which is useable in conjunction with subsea hydraulic control circuits. The filters incorporated in a housing which can be stabbed in or out of a control unit to become part of one or more fluid control circuits. The stab-type housing can be inserted with a remotely operated vehicle. Other configurations involve long, slender housings for use with subsurface safety valve control lines as well as with tubing hanger housings. The slender design allows mounting right on the production tubing. A rupture disc feature is available so that if excessive pressure differential is obtained due to clogging, the filter unit within the housing can be bypassed to allow continuing operation.

REFERENCES:
patent: 3827501 (1974-08-01), Johnson et al.
patent: 3850238 (1974-11-01), Hill
patent: 4431051 (1984-02-01), Adams, Jr.
patent: 4442902 (1984-04-01), Doremus et al.
patent: 5088554 (1992-02-01), Arterbury et al.
patent: 5088558 (1992-02-01), Mohn
patent: 5139085 (1992-08-01), Duvallet
Baker, Ron, A Primer of Oil Well Drilling, Published by Petroleum Extension Service, Fourth Edition, Revised, 1979, pp. 58, 61.

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