Subsurface shutdown safety valve and arrangement system

Details Subsurface shutdown safety valve and arrangement system Subsurface shutdown safety valve and arrangement system

1993-11-05

1995-03-07

Schoeppel, Roger J.

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

166 91, 166 95, 166382, 166386, 403 59, E21B 3406

Patent

active

053949439

ABSTRACT:
A subsurface shutdown safety valve spool piece for installation on underground salt dome cavern storage wells having a cased wellhead at ground level for product input and removal, a cased wellbore and a tubing string extending to the cavern storage area which forms an annular space between the wellbore and the tubing string for product removal. The spool piece includes a tubular casing for mounting between the wellhead casing and the cased borehole, a hanger for suspending the tubing string, seals for sealing the annular space, piping communicating with the annular space above and below the annular space seals and a remotely operated piping valve.

REFERENCES:
patent: Re25109 (1962-01-01), Natho
patent: 1921358 (1933-08-01), Hill et al.
patent: 2546638 (1951-03-01), Humason
patent: 2704579 (1955-03-01), Brown
patent: 2785755 (1957-03-01), En Dean
patent: 2796133 (1957-06-01), En Dean
patent: 2831539 (1958-04-01), En Dean et al.
patent: 2901889 (1959-09-01), Reed
patent: 3078923 (1963-02-01), Tausch
patent: 3105358 (1963-10-01), Reed
patent: 3457991 (1969-07-01), Sizer et al.
patent: 3459260 (1969-04-01), Dollison
patent: 3490240 (1970-10-01), Preston
patent: 3491831 (1970-01-01), Dollison
patent: 3505821 (1970-04-01), Scisson et al.
patent: 3530674 (1970-09-01), Cobbs et al.
patent: 3738426 (1973-06-01), Drouin
patent: 4082147 (1978-04-01), Wolff et al.
patent: 4650226 (1987-03-01), Babbitt et al.
patent: 4842074 (1989-06-01), Hines et al.
patent: 4991624 (1991-02-01), Fowler et al.
patent: 5103900 (1992-04-01), McLeod et al.
patent: 5203409 (1993-04-01), Seid et al.
patent: 5289882 (1994-03-01), Moore

Affiliated with

Also associated with

Rating

Subsurface shutdown safety valve and arrangement system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Subsurface shutdown safety valve and arrangement system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subsurface shutdown safety valve and arrangement system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1400869