Method for recovering petroleum
A method for recovering petroleum in the secondary or in the partially depleted primary recovery stages consists of the introduction of high pressure, high temperature superheated steam into the peripheral zone of a dome-type formation, the steam being introduced through substantially equally spaced wells about the periphery of the formation. The steam is introduced until the entire formation has been heated to a predetermined temperature range, the viscosity of the petroleum is reduced and the petroleum flows downward toward the peripheral or bottom zone of the formation. Steam is introduced continuously to make up losses during the period of production and steam pressure and temperature are maintained until production is complete. (24 claims)
- Assignee:
- TUL; EDB-82-054364
- Patent Number(s):
- US 3572436
- OSTI ID:
- 5831196
- Resource Relation:
- Patent File Date: Filed date 17 Jan 1969; Other Information: PAT-APPL-791,961
- Country of Publication:
- United States
- Language:
- English
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