Down hole jet pump retrievable by reverse flow and well treatment system

Patent · Tue Jan 28 04:00:00 EST 1992

OSTI ID:5438208

Coleman, W P

This patent describes a down hole jet pump for a well having a casing extending into a formation producing a fluid with the casing communicated with the formation through perforations in the lower end portion of the casing, a pump housing adapted to be positioned in the lower end portion of a casing. The pump housing including a standing valve at the lower end thereof, the pump housing including a vertical cavity therein and passageways with the passageways being generally parallel to and spaced laterally from the cavity and in non-concentric relation thereto with the passageways enabling flow into and from the pump housing, a jet pump mounted vertically in the housing, the jet pump including a pump body, a vertically adjustable nozzle, a venturi, throat and diffuser, a power fluid tubing connected to the pump housing at its upper end and extending to surface for receiving power fluid to pass through the pump, the pump housing including a production tubing connected thereto and extending to surface for passage of production fluid.

• Assignee: NOV; NOV-92-024048; EDB-92-093904
• Patent Number(s): A; US 5083609
• Application Number: PPN: US 7-615245
• OSTI ID: 5438208
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
BOREHOLES
CAVITIES
CONTROL EQUIPMENT
DEPTH
DIMENSIONS
EQUIPMENT
FLOW REGULATORS
FLUIDS
GEOLOGIC DEPOSITS
JETS
MINERAL RESOURCES
MIXING
NOZZLES
OIL WELLS
PERFORATION
PETROLEUM DEPOSITS
PRODUCTION
PUMPS
RESOURCES
SEPARATION PROCESSES
SURFACES
VALVES
VENTURI TUBES
WELLS