Reactive material reciprocating submersible pump

Details Reactive material reciprocating submersible pump Reactive material reciprocating submersible pump

1997-08-27

2000-01-18

Freay, Charles G.

Pumps

Processes

417412, F04B 4500

Patent

active

060152664

ABSTRACT:
A subsurface well system contains well bore fluid and a pumping system which is lowered into the well bore on a conduit. The pumping system is supplied with electrical power through a conductor. The pumping system has a chamber, a discharge valve, and an intake valve for admitting the well bore fluid into the chamber. The chamber contains a reservoir that is filled with a reactive polymer gel that undergoes a significant change in volume in response to environmental changes. The gel expands when it is electrically stimulated, thereby forcibly expelling the fluid within the chamber. The gel contracts when it is not stimulated, thereby drawing fluid into the chamber. When electrical current is oscillated through the gel, the expansions and contractions repeat so that a pumping action of well bore fluid is achieved. The gel may also be formulated to react to an electromagnetic field. The gel of this embodiment contains metallic particles which increase in temperature when exposed to the magnetic field. The temperature increase significantly increases the volume of the gel. Applying electrical current to a coil which surrounds the reservoir causes a magnetic field to pass through the gel, thereby increasing the volume of the gel. When electrical current is oscillated through the coil, the gel expands and contracts so that a pumping action of well bore fluid is achieved.

REFERENCES:
patent: 3702067 (1972-11-01), Stewart
patent: 4018547 (1977-04-01), Rogen
patent: 4472113 (1984-09-01), Rogen
patent: 5288214 (1994-02-01), Toshio et al.
patent: 5334629 (1994-08-01), Zirino
patent: 5398917 (1995-03-01), Carlson et al.
patent: 5515085 (1996-05-01), Hideo et al.
patent: 5534186 (1996-07-01), Walker et al.

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