Wells – Above ground apparatus – With seal for reciprocating member
Patent
1996-09-23
1997-04-01
Dang, Hoang C.
Wells
Above ground apparatus
With seal for reciprocating member
166 841, 277 50, 277 74, E21B 3302
Patent
active
056157363
ABSTRACT:
A simple one piece device, herein referred to as an unitary diversionary-tubing hanger, or UDTH, for attachment to a wellhead that functions as a tubing hanger, a diverter of flow from the vertical to the horizontal or visa versa, and a securing device for a removable vertical seal plug and a recoverable emergency energizable vertical rod seal. The UDTH simplifies wellhead completion by eliminating all valves in the vertical string. The UDTH can be landed directly in some wellheads. The UDTH also simplifies remedial treatment of the wellhead and can be installed or removed from most wellheads in less than one hour. The UDTH can also pass through a blowout protector attached to a wellhead. A recoverable energizable vertical rod seal, installable in the vertical passageway of the UDTH, provides an emergency pump rod seal in a wellhead completed for rod pumping, both reciprocating and rotating. The pump rod seal has a member which seal it against the vertical passageway in the UDTH, a resilient member which can be energized to seal around the pump rod when leakage occurs, while allowing the pumping to continue.
REFERENCES:
patent: 1944573 (1934-01-01), Raymond et al.
patent: 2077480 (1937-04-01), Humason
patent: 2148360 (1939-02-01), Lemley
patent: 2207255 (1940-07-01), Jesson et al.
patent: 2673615 (1954-03-01), Humason
patent: 2842386 (1958-07-01), Regan
patent: 2889886 (1959-06-01), Gould
patent: 3299958 (1962-01-01), Todd
patent: 3815925 (1974-06-01), Mattoon
patent: 4071085 (1978-01-01), Grable et al.
patent: 4289294 (1981-09-01), McLean
patent: 4491176 (1985-01-01), Reed
patent: 4708201 (1987-11-01), Reed
patent: 4804045 (1989-02-01), Reed
patent: 4907650 (1990-03-01), Heinonen
patent: 5000719 (1991-03-01), Reed
patent: 5148865 (1992-09-01), Reed
patent: 5343944 (1994-09-01), Bassinger
Dang Hoang C.
Logan F. Eugene
LandOfFree
Unitary diversionary-tubing hanger and energizable rod seal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Unitary diversionary-tubing hanger and energizable rod seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unitary diversionary-tubing hanger and energizable rod seal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-532761