Wells – Valves – closures or changeable restrictors
Patent
1972-10-24
1977-07-26
Purser, Ernest R.
Wells
Valves, closures or changeable restrictors
415202, 418206, E21B 4300
Patent
active
040376630
ABSTRACT:
A method of extracting a liquid, such as oil, from an underground reservoir, is characterized by introducing a pump operated by extraneous energy into a well bore at a level which is below the dynamic level of the liquid therein, and operating the lift device to lift the liquid to the surface of the well bore while conserving the residual reservoir energy, i.e. the energy remaining which corresponds to that normally used in lifting the liquid from the lift device level to the dynamic level. The pump is one in which the liquid pressure at its inlet applies equal and opposite forces to the pump drive member so that the latter is driven solely by the external drive and does not dissipate the liquid reservoir energy existing at the pump inlet level. In this manner, the residual reservoir energy at the pump inlet level is exploited to increase the quantity of the liquid transported to the well bore. Optimumly, the lift device is applied at or close to the bottom of the well bore whereby substantially all of the reservoir energy is used to transport the liquid to the bottom of the well bore.
REFERENCES:
patent: 3196947 (1965-07-01), Van Poollen
patent: 3467195 (1969-09-01), McAuliffe et al.
patent: 3548946 (1970-12-01), Engle
patent: 3643740 (1972-02-01), Kelley
patent: 3705532 (1972-12-01), Hubby
patent: 3730276 (1973-05-01), Land
Barish Benjamin J.
Purser Ernest R.
Suchfield George A.
LandOfFree
Method for well exploitation 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 for well exploitation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for well exploitation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-720427