Method and apparatus for steam injection in subterranean wells

Patent · Tue Mar 10 00:00:00 EST 1987

OSTI ID:7047567

Luke, M A

A method is described of injecting a steam at a selected mass flow rate into a production formation of a subterranean well having a tubing string traversing the production formation comprising the steps of: supplying a steam flow to the surface end of the tubing string; diverting the downwardly flowing steam into two radially separated flow components above and adjacent to the production formation; directing one of the flow components into the inlet end of a Venturi passage, the outlet end of the Venturi passage being in communication with the production formation; and accelerating the flow rate of the one flow component by the Venturi passage to its critical mass flow rate. An apparatus is described for injecting steam into a production formation of a subterranean well at a selected mass flow rate comprising a tubular housing connectable in series relationship to the tubing string adjacent the production formation; fluid diverting means in the tubular housing for dividing the steam flow into two radially separated components; and means including a Venturi passage for accelerating the flow rate of one of the flow component to the critical mass flow rate and directing the accelerated component to the production formation.

• Assignee: Baker Oil Tools, Inc., Orange, CA
• Patent Number(s): US 4648455
• OSTI ID: 7047567
• Resource Relation: Patent File Date: Filed date 16 Apr 1986
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
STEAM INJECTION
DRILL PIPES
ENHANCED RECOVERY
FLOW RATE
PETROLEUM
STEAM
VALVES
VENTURI TUBES
WELL STIMULATION
CONTROL EQUIPMENT
DRILLING EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLOW REGULATORS
FLUID INJECTION
FOSSIL FUELS
FUELS
PIPES
RECOVERY
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production