Device for intermittent gas-lift exploitation of oil wells

Patent · Tue May 08 04:00:00 EDT 1973

OSTI ID:7069115

Szilas, A P; Bognar, J; Mating, B; Bajoczky, L

A device for intermittent exploitation of gas-lift wells has a pressure-controlled-resilient diaphragm valve with spread and snap action--preferably with a rubber diaphragm--a resilient packer and an intermediate piece fitted with a differential valve. It is characterized by the fact that the valve chamber (which can be put under pressure behind the diaphragm) is divided into 2 parts by an inner partition. This partition has larger orifices equipped with check valves and smaller, capillary ones, the double space being filled with neutral pressure-transmitting liquid of low vapor pressure. For pressure transmitting purposes, silicone oil is preferably used. The valve chamber is put under pressure by means of a gas, e.g., nitrogen gas. The gas-lift valve, the resilien packer, which is preferably made of rubber, and the fitting form a single unit, the mounting of which is in the well does not require any special skill. (4 claims)

• Assignee: Hungarian Agency
• Patent Number(s): US 3732035
• OSTI ID: 7069115
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ARTIFICIAL LIFTS
CONTROL EQUIPMENT
DESIGN
ELEMENTS
ENERGY SOURCES
EQUIPMENT
EXPLOITATION
FLOW REGULATORS
FOSSIL FUELS
FUELS
GAS LIFTS
NITROGEN
NONMETALS
OIL WELLS
OPENINGS
ORIFICES
PETROLEUM
VALVES
WELLS