Wells – Processes – Producing the well
Patent
1997-11-26
2000-07-18
Dang, Hoang
Wells
Processes
Producing the well
166 50, 1661055, 166106, 166372, E21B 4318
Patent
active
060893222
ABSTRACT:
A downhole injector 10, 26, 38 and 54 is provided at the lower end of the production tubing string TS for passing liquids from a downhole formation into the tubing string while preventing gases from passing through the injector. The injector may include an improved screen 36 for preventing formation sand from entering the injector. The system may include a packer 44 in the annulus A above the injector. In one application, a vent tube 46 extends upward from the packer into the annulus for maintaining a desired liquid level in the annulus above the packer. A plurality of through ports 40 establish fluid communication in the annulus above the packer and the production tubing string so that a downhole pump P may efficiently pump downhole fluids to the surface. The injector of the present invention may be used with one or more lift valves LV for raising slugs of liquid upward to the surface through the production tubing string. The present invention may also be used with horizontal bore hole technology for increased hydrocarbon recovery by retaining the gases downhole to act upon liquid hydrocarbons and maintaining a driving force for pushing the liquids toward the injector for recovery.
REFERENCES:
patent: 1507454 (1924-09-01), Blackburn
patent: 1757267 (1930-05-01), Stanley
patent: 2291902 (1942-08-01), Kelley
patent: 2434239 (1948-01-01), Zublin
patent: 2810352 (1957-10-01), Tumlison
patent: 3324803 (1967-06-01), Kelley et al.
patent: 3363581 (1968-01-01), Kelley et al.
patent: 3408949 (1968-11-01), Hart, Jr.
patent: 3410217 (1968-11-01), Kelley et al.
patent: 3451477 (1969-06-01), Kelley
patent: 3483827 (1969-12-01), Hooper
patent: 3643740 (1972-02-01), Kelley
patent: 3653438 (1972-04-01), Wagner
patent: 3724486 (1973-04-01), Douglas
patent: 3971213 (1976-07-01), Kelley
patent: 3993129 (1976-11-01), Watkins
patent: 4042029 (1977-08-01), Offeringa
patent: 4345647 (1982-08-01), Carmichael
patent: 4474234 (1984-10-01), Lefebvre et al.
patent: 4570718 (1986-02-01), Adams, Jr.
patent: 4596516 (1986-06-01), Scott et al.
patent: 4643258 (1987-02-01), Kime
patent: 5257665 (1993-11-01), Watkins
patent: 5343945 (1994-09-01), Weingarten et al.
patent: 5450901 (1995-09-01), Ellwood
patent: 5456318 (1995-10-01), Priestly
patent: 5535825 (1996-07-01), Hickerson
patent: 5653286 (1997-08-01), McCoy et al.
patent: 5655604 (1997-08-01), Newton
patent: 5664628 (1997-09-01), Koehler et al.
Kelley, "Downhole Separator Cuts Gas Locking in Rod Pumps", World Oil, Jul. 1972, 4. pp.
Kelley Terry E.
Snyder Robert E.
Dang Hoang
Kelley & Sons Group International, Inc.
LandOfFree
Method and apparatus for increasing fluid recovery from a subter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for increasing fluid recovery from a subter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for increasing fluid recovery from a subter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2026381