Process and apparatus for producing crude oil from separate strata
Patent
·
OSTI ID:6047080
This invention is concerned with the simultaneous production of highly viscous crude oils from different level strata. In the simultaneous production of heavy oil from separate vertically spaced strata by steam flooding, the oil in the production tubing is heated and rendered less viscous by indirect heat exchange with injected steam. In one embodiment, steam injected into the upper stratum is first circuited to the lower stratum via conduit means extending through a packer between strata before venting to the well above the packer. (7 claims)
- Assignee:
- TUL; EDB-82-009934
- Patent Number(s):
- US 3361202
- OSTI ID:
- 6047080
- Country of Publication:
- United States
- Language:
- English
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