Well completion system with flapper control valve

Wells – Processes – Placing or shifting well part

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

166316, 166387, E21B 3312

Patent

active

055645020

ABSTRACT:
A well control valve assembly prevents flow from or to completion segments further downhole from the well control valve assembly once the stimulation stimulation/shifter string has been removed from the production tubing string. The well control valve assembly features a shaped flapper plate which, when opened, conforms closely to the shape and size of the production tubing string's interior diameter. The flapper plate is biased toward a closed position by a compression spring arrangement that includes an arm which levers the plate upward toward a seating surface. The valve assembly's closure is mechanically induced and is not responsive to a sensed well condition.

REFERENCES:
patent: 2162578 (1939-06-01), Hacker
patent: 3865141 (1975-02-01), Young
patent: 3955623 (1976-05-01), Aumann
patent: 4077473 (1978-03-01), Watkins
patent: 4160484 (1979-07-01), Watkins
patent: 4161960 (1979-07-01), Watkins
patent: 4356867 (1982-11-01), Carmody
patent: 4372391 (1983-02-01), Barrington et al.
patent: 4372392 (1983-02-01), Barrington et al.
patent: 4376464 (1983-03-01), Crow
patent: 4436152 (1984-03-01), Fisher, Jr. et al.
patent: 4441552 (1984-04-01), Hamman
patent: 4449587 (1984-05-01), Rodenberger et al.
patent: 4457376 (1984-07-01), Carmody et al.
patent: 4531587 (1985-07-01), Fineberg
patent: 4583596 (1986-04-01), Davis
patent: 4605070 (1986-08-01), Morris
patent: 4674575 (1987-06-01), Guess
patent: 4834183 (1989-05-01), Vinzant et al.
patent: 4854387 (1989-08-01), Pringle
patent: 4890674 (1990-01-01), Le
patent: 5022427 (1991-06-01), Churchman et al.
patent: 5086839 (1992-02-01), Setterberg, Jr. et al.
patent: 5137089 (1992-08-01), Smith et al.
patent: 5159981 (1992-11-01), Le
patent: 5285850 (1994-02-01), Bayh
patent: 5323859 (1994-06-01), Smith et al.
patent: 5425423 (1995-06-01), Dobson et al.
Otis Engineering Corporation 1974-75 Catalog. Packers and Accessories, p. 3953.
Otis Engineering Corporation 1982 Catalog-pp. 44 and 47. Production Packer Equipment and Services.
Otis Subsurface Safety Systems brochure. Otis Contoured Flapper Subsurface Safety Valve (2 pp.).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Well completion system with flapper control valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Well completion system with flapper control valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well completion system with flapper control valve will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1239085

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.