Wells – Valves – closures or changeable restrictors – Operated by dropped element
Patent
1991-02-25
1992-09-29
Melius, Terry Lee
Wells
Valves, closures or changeable restrictors
Operated by dropped element
166319, 166242, E21B 3410
Patent
active
051507560
ABSTRACT:
There is disclosed apparatus for use in completing a well whose well bore has a substantially horizontally extending lower end into which a casing string is to be lowered, the apparatus including a tool adapted to be connected in the casing string and having a plug therein above a back pressure valve installed in the lower end of the string to form a buoyant chamber within the casing string which is filled with a low density fluid for lowering into the substantially horizontally extending lower end of the well bore.
REFERENCES:
patent: 3005507 (1961-10-01), Clark, Jr. et al.
patent: 3526280 (1970-09-01), Aulick
patent: 3768556 (1973-10-01), Baker
patent: 3789926 (1974-02-01), Henley et al.
patent: 4260017 (1981-04-01), Nelson et al.
patent: 4469174 (1984-09-01), Freeman
patent: 4574894 (1986-03-01), Jadwin
patent: 4842062 (1989-06-01), Schneider et al.
patent: 4949788 (1990-08-01), Szarka et al.
World Oil "Extended Reach Drilling For Shallow Oil And Gas Wells" Oct. 24-26, 1990-R. M. Hinkle-Unocal Oil And Gas-M. G. Mims-K & M Enterprises-6 pages-Gulf Publishing Company.
Davis-Lynch, Inc.
Melius Terry Lee
LandOfFree
Well completion apparatus 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 apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well completion apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1963420