Wells – Expansible anchor or casing – Fluid pressure actuated
Patent
1998-02-24
1999-11-09
Bagnell, David
Wells
Expansible anchor or casing
Fluid pressure actuated
166206, 166214, 166382, 166383, E21B 2300
Patent
active
059795506
ABSTRACT:
Apparatus is provided for stabilizing a PC pump suspended from production tubing. The stabilizing apparatus is connected to the pump and comprises a tubular body having a cylindrical wall, a longitudinal bore contiguous with the production tubing and three or more circumferentially-spaced linkages are disposed in longitudinal slots formed in the exterior of the tubular body. Each linkage comprises at least a passive and an active link pivotally connected end-to-end in series, the passive link being pivoted from the body. An annulus is formed within the cylindrical wall and contains a longitudinally movable annular piston pivotally connected to the active link. The annulus is connected to the bore so that the piston is pressurized dynamically with fluid from the bore. Fluid pressure drives the piston, actuating the active link, thereby causing the linkage to expand radially outwards, the radial force being proportional with the fluid pressure. Under production pressures, a very high stabilizing force is produced. Accordingly, at non-flowing conditions, the pressure diminishes and the linkages are only spring-loaded, permitting movement of the pump and tubing while maintaining tool and apparatus centralization.
REFERENCES:
patent: 1856469 (1932-05-01), Crowell
patent: 2490350 (1949-12-01), Grable et al.
patent: 3661205 (1972-05-01), Belorgey
patent: 3891034 (1975-06-01), Owen et al.
patent: 4184546 (1980-01-01), Nicholas et a.
patent: 4616703 (1986-10-01), Laurent et al.
patent: 4776394 (1988-10-01), Lynde et al.
patent: 4960173 (1990-10-01), Cognevich et al.
patent: 5678633 (1997-10-01), Constantine, Jr.
patent: 5758723 (1998-06-01), Saucier et al.
patent: 5765640 (1998-06-01), Milne et al.
Alberta Ltd.
Bagnell David
Kang Chi H.
LandOfFree
PC pump stabilizer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with PC pump stabilizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PC pump stabilizer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1444099