Methods using dual acting pumps or dual pumps to achieve core an

Details Methods using dual acting pumps or dual pumps to achieve core an Methods using dual acting pumps or dual pumps to achieve core an

1997-08-08

2000-06-20

Tsay, Frank

Wells

With eduction pump or plunger

Having sediment trap or deflector

E21B 4300

Patent

active

060765992

ABSTRACT:
A system is disclosed for the more efficient production of heavy or viscous crudes in oil wells. A cased wellbore into a production zone is provided with a single production tubing string from the production zone to the surface. A dual pumping system or dual action pumping system is used to separately flow produced heavy crude and produced geometrical manner to induce core annular flow of the heavy crude and a portion of produced water to the earth's surface.

REFERENCES:
patent: 3827495 (1974-08-01), Reed
patent: 3977469 (1976-08-01), Broussard et al.
patent: 4745937 (1988-05-01), Zagustin et al.
patent: 4753261 (1988-06-01), Zagustin et al.
patent: 5159977 (1992-11-01), Zabaras

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