Patent US3689723A successfully refreshed from Google Patents.
US3153448A
Expired / Lapsed
US
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Combination in situ combustion-aqueous medium drive oil recovery method
Assignee: ConocoPhillips Co
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Filing: 1959-09-17
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Granted: 1964-10-20
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Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 John N Dew
- 👤 John D Alexander
- 👤 William L Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:24
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243; E21B43/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
THE METHOD OF RECOVERING HYDROCARBONS FROM A SUBTERRANEAN FORMATION TRAVERSED BY BORES OF A PLURALITY OF INJECTION WELLS AND AT LEAST ONE OUTPUT WELL WHICH COMPRISES THE STEPS OF POSITIONING AT LEST TWO INJECTION WELLS ADJACENT EACH OUTPUT WELL; CONDUCTING DIRECT IN SITU COMBUSTION IN THE FORMATION SURROUNDING SAID INJECTION AND OUTPUT WELLS WHILE RECOVERING HYDROCARBONS FROM THE OUTPUT WELLS; TERMINATING SAID COMBUSTION TO DEFINE A PREDETERMINED COMBUSTION ZONE; SUBSTANTIALLY FILLING SAID COMBUSTION ZONE WITH AN AQUEOUS MEDUM INTRODUCED BY WAY OF AT LEAST ONE OF SAID INJECTION AND OUTPUT WELLS; POSITIONING A RECOVERY WELL ADJACENT TO AND OUTSIDE OF SAID ZONE; AND INJECTING ADDITIONAL AQUEOUS MEDIUM INTO THE COMBUSTED ZONE THROUGH SAID INJECTION AND OUTPUT WELLS TO DRIVE HYDROCARBONS FROM THE FORMATION ADJACENT SAID ZONE WHILE REMOVING HYDROCARBONS FROM THE FORMATION THROUGH SAID RECOVERY WELL.
Claim 2
Independent Claim
136 words
THE METHOD OF RECOVERING HYDROCARBONS FROM A SUBTERRANEAN FORMATION TRAVERSED BY BORES OF A PLURALITY OF INJECTION WELLS AND AT LEAST ONE OUTPUT WELL WHICH COMPRISES THE STEPS OF POSITIONING AT LEST TWO INJECTION WELLS ADJACENT EACH OUTPUT WELL; CONDUCTING DIRECT IN SITU COMBUSTION IN THE FORMATION SURROUNDING SAID INJECTION AND OUTPUT WELLS WHILE RECOVERING HYDROCARBONS FROM THE OUTPUT WELLS; TERMINATING SAID COMBUSTION TO DEFINE A PREDETERMINED COMBUSTION ZONE; SUBSTANTIALLY FILLING SAID COMBUSTION ZONE WITH AN AQUEOUS MEDUM INTRODUCED BY WAY OF AT LEAST ONE OF SAID INJECTION AND OUTPUT WELLS; POSITIONING A RECOVERY WELL ADJACENT TO AND OUTSIDE OF SAID ZONE; AND INJECTING ADDITIONAL AQUEOUS MEDIUM INTO THE COMBUSTED ZONE THROUGH SAID INJECTION AND OUTPUT WELLS TO DRIVE HYDROCARBONS FROM THE FORMATION ADJACENT SAID ZONE WHILE REMOVING HYDROCARBONS FROM THE FORMATION THROUGH SAID RECOVERY WELL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |