Vacuum insulated steam injection tubing
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
- Resource Relation:
- Patent File Date: Filed date 31 Aug 1982; Other Information: PAT-APPL-413285
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
OIL WELLS
STEAM INJECTION
ANNULAR SPACE
ATMOSPHERIC PRESSURE
CARBON MONOXIDE
CORROSION
HYDROGEN
TEMPERATURE DEPENDENCE
TUBES
WELL STIMULATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CONFIGURATION
ELEMENTS
FLUID INJECTION
NONMETALS
OXIDES
OXYGEN COMPOUNDS
SPACE
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production