Vacuum insulated steam injection tubing

Patent · Tue Apr 23 04:00:00 EST 1985

OSTI ID:6418645

Ayres, P S; Chen, C M; Ziels, B D

Tubular apparatus for delivering steam or other hot fluids to an oil well comprises an inner tubular having an outer surface and defining an inner space for conveying fluids at a temperature greater than 400 degrees F., and an outer tubular disposed around the inner tubular and defining an annular space with the inner and the outer tubulars being connected together. The annular space is closed to atmospheric pressure. A vacuum is established within the annular space. A getter material for absorbing at least one active gas is disposed within the annular space. Active gases which are absorbed by the getter material include hydrogen formed by corrosion of the outer tubular which hydrogen migrates through the outer tubular into the annular space and gases such as nitrogen, carbon monoxide, and hydrogen that are released from the inner tubular at elevated temperatures.

• Assignee: The Babcock and Wilcox Company
• Patent Number(s): US 4512721
• OSTI ID: 6418645
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ANNULAR SPACE
ATMOSPHERIC PRESSURE
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CONFIGURATION
CORROSION
ELEMENTS
FLUID INJECTION
HYDROGEN
NONMETALS
OIL WELLS
OXIDES
OXYGEN COMPOUNDS
SPACE
STEAM INJECTION
STIMULATION
TEMPERATURE DEPENDENCE
TUBES
WELL STIMULATION
WELLS