US3167117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing oil from an oil-bearing stratum having high directional permeability
Assignee: Phillips Petroleum Co
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Filing: 1963-02-08
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Granted: 1965-01-26
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Expires: 1983-02-08
Abstract
No abstract record available.
Inventors
- 👤 Santourian Melcon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:04
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243; E21B43/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A PROCESS FOR PRODUCING OIL FROM AN OIL-BEARING STRATUM HAVING HIGH DIRECTIONAL PERMEABILITY, SAID STRATUM BEING PENETRATED BY A CENTRAL WELL AND A SURROUNDING RING OF AT LEAST 4 WELLS WHICH COMPRISES THE STEPS OF (1) SELECTED AS INJECTION WELLS A PAIR OF RING WELLS SUBSTANTIALLY DIAMETRICALLY OPPOSITE EACH OTHER AND IN LINE WITH SAID DIRECTIONAL PERMEABILITY; (2) INJECTING AIR THRU SAID INJECTION WELLS AND PRODUCING ONLY THRU SAID CENTRAL WELL UNTIL AIR IS BEING PRODUCED AT A COMBUSTION-SUSTAINING RATE; (3) THEREAFTER, IGNITING SAID STRATUM ADJACENT SAID CENTRAL WELL AND CONTINUING THE INJECTION OF AIR THRU SAID INJECTION WELLS SO AS TO MOVE INVERSE BURNING COMBUSTION ZONES INTO SAID STRATUM TOWARD EACH INJECTION WELL; (4) THEREAFTER, CLOSING SAID CENTRAL WELL AND OPENING AT LEAST ONE RING WELL ON EACH SIDE OF THE LINE OF INJECTION WELLS AS PRODUCTION WELLS; AND (5) CONTINUING INJECTION OF AIR THRU SAID INJECTION WELLS SO AS TO CONTINUE COMBUSTION IN SAID STRATUM AND PRODUCE THRU SAID PRODUCTION WELLS.
Claim 2
Dependent Claim
163 words
A PROCESS FOR PRODUCING OIL FROM AN OIL-BEARING STRATUM HAVING HIGH DIRECTIONAL PERMEABILITY, SAID STRATUM BEING PENETRATED BY A CENTRAL WELL AND A SURROUNDING RING OF AT LEAST 4 WELLS WHICH COMPRISES THE STEPS OF (1) SELECTED AS INJECTION WELLS A PAIR OF RING WELLS SUBSTANTIALLY DIAMETRICALLY OPPOSITE EACH OTHER AND IN LINE WITH SAID DIRECTIONAL PERMEABILITY; (2) INJECTING AIR THRU SAID INJECTION WELLS AND PRODUCING ONLY THRU SAID CENTRAL WELL UNTIL AIR IS BEING PRODUCED AT A COMBUSTION-SUSTAINING RATE; (3) THEREAFTER, IGNITING SAID STRATUM ADJACENT SAID CENTRAL WELL AND CONTINUING THE INJECTION OF AIR THRU SAID INJECTION WELLS SO AS TO MOVE INVERSE BURNING COMBUSTION ZONES INTO SAID STRATUM TOWARD EACH INJECTION WELL; (4) THEREAFTER, CLOSING SAID CENTRAL WELL AND OPENING AT LEAST ONE RING WELL ON EACH SIDE OF THE LINE OF INJECTION WELLS AS PRODUCTION WELLS; AND (5) CONTINUING INJECTION OF AIR THRU SAID INJECTION WELLS SO AS TO CONTINUE COMBUSTION IN SAID STRATUM AND PRODUCE THRU SAID PRODUCTION WELLS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |