Production plunger

Patent · Tue Dec 26 04:00:00 EST 1989

OSTI ID:6915994

Krueger, W E

This patent describes a production plunger for reciprocating in the production string of wells that produce both liquid and gas to assist the gas in lifting produced liquid to the surface. It comprises: a body for reciprocating in the production string of a well. The body having a passageway extending longitudinally through the body, and means closing the lower end of the passageway, seal means carried by the body for engaging the inner wall of the production string to prevent fluid flowing upwardly in the production string from passing between the body and the inner wall of the production string, a valve seat in the passageway, a valve member located in the passageway in the body above the valve seat, a valve rod connected to the valve member and extending downwardly through the valve seat, and a piston connected to the valve rod below the valve seat.

• Assignee: E-Z Lift Pump, Inc., College Station, TX
• Patent Number(s): A; US 4889473
• Application Number: PPN: US 7-299130A
• OSTI ID: 6915994
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CONTROL EQUIPMENT
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
FLOW REGULATORS
FLUID FLOW
NATURAL GAS WELLS
OIL WELLS
OPERATION
PIPES
TWO-PHASE FLOW
WELL RECOVERY EQUIPMENT
WELLS