Dual valve well pump installation

Patent · Tue Oct 22 00:00:00 EDT 1985

OSTI ID:5921024

Holm, D R

A reciprocating electric motor-pump assembly for lifting well fluid on downstroke of the motor pump assembly, the pump including a barrel below the motor having dual combined inlet and outlet valve means at the lower end thereof, the pump piston moving in the barrel having annular grooves therearound to prevent differential pressure sticking, the electric cable supplying the electric motor being tubular to vent the pump and prevent vacuum or gas lock, there being a packer about the valve barrel separating the outlet valve means thereabove from the inlet valve means therebelow and a packer above the motor about a production tubing including an upper standing valve.

• Assignee: IFI; EDB-86-085038
• Patent Number(s): US 4548552
• OSTI ID: 5921024
• Resource Relation: Patent File Date: Filed date 17 Feb 1984; Other Information: PAT-APPL-581500
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
PUMPS
DESIGN
ELECTRIC MOTORS
VALVES
HYDRAULICS
NATURAL GAS WELLS
OIL WELLS
OPERATION
PACKINGS
RESERVOIR FLUIDS
WELL RECOVERY EQUIPMENT
CONTROL EQUIPMENT
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
FLOW REGULATORS
FLUID MECHANICS
FLUIDS
MECHANICS
MOTORS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing