Automatic pump for deep wells

Patent · Tue Nov 24 04:00:00 EST 1981

OSTI ID:5944754

Brown, K D

An automatic pump for deep wells comprises a long stroke reciprocating pump having its piston normally in its bottom position and an automatic control dependent upon the collection of a predetermined amount of liquid in the pump cylinder above the piston for actuating the piston to pump the liquid into a production line. The automatic control includes an electric motor driven hydraulic pump and a reservoir of hydraulic fluid which is actuated upon filling of the reciprocating pump chamber to supply hydraulic fluid to a closed chamber below the piston and force the piston upwardly to discharge liquid from the pump cylinder. Gas collected in the top of the pump cylinder results in low starting current and a saving of energy. The hydraulic pump is reversed automatically upon completion of the pumping stroke of the piston.

• Assignee: IFI; EDB-82-027044
• Patent Number(s): US 4302158
• OSTI ID: 5944754
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
AUTOMATION
CONTROL
DEPTH
DESIGN
DIMENSIONS
ELECTRIC MOTORS
EQUIPMENT
FLOW RATE
FLUIDS
HYDRAULIC EQUIPMENT
MOTORS
OIL WELLS
PUMPS
RESERVOIR FLUIDS
WELLS