Liquid removal method system and apparatus for hydrocarbon producing

Patent · Tue Dec 20 04:00:00 EST 1988

OSTI ID:6382789

Amani, M

This patient describes a system for controlling the operation of a liquid disposal cycle and the operation of a production cycle of a hydrocarbon producing well, comprising: a pressurized gas source to provide the necessary pressure to force an accumulated liquid from a well tubing disposed within a well into a casing of a hydrocarbon producing well for disposal; a supply line connected to the pressurized gas source and extending in a well annulus from the surface of the well, and connected to the well tubing below the surface of the earth; a controller which initiates the steps of production and disposal cycles of the hydrocarbon producing well in response to a pressure differential between predetermined locations within the well tubing, the controller having valve actuating means to actuate a series of valve means to closed or open positions; a first valve means controlling the flow of pressurized gas from the pressurized gas source into the supply line, the first valve means being actuated to its open or closed positions by the controller; a second valve means, controlling the flow of the pressurized gas from the supply line to the top of the well tubing, the second valve means being actuated to its open or closed positions by the controller; check valve means to prevent back flow of gas from the well tubing to the supply line; a third valve means controlling the flow of vent gas from the supply line to the atmosphere, the third valve means also being actuated to its open or closed position by the controller.

• Assignee: NOV; EDB-89-052681; NOV-89-048216
• Patent Number(s): US 4791990
• OSTI ID: 6382789
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CONTROL EQUIPMENT
DESIGN
DISPLACEMENT FLUIDS
DRILL PIPES
DRILLING EQUIPMENT
ENERGY SOURCES
ENHANCED RECOVERY
EQUIPMENT
FIELD PRODUCTION EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GAS INJECTION
LIQUID FLOW
LIQUID WASTES
MINERAL WASTES
OIL WELLS
PERFORATION
PETROLEUM
PIPES
RECOVERY
RESERVOIR FLUIDS
SOLID WASTES
STIMULATION
VALVES
WASTES
WELL RECOVERY EQUIPMENT
WELL STIMULATION
WELLS