US3109487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Petroleum production by secondary recovery
Assignee: Texaco Inc
•
Filing: 1959-12-29
•
Granted: 1963-11-05
•
Expires: 1979-12-29
Abstract
No abstract record available.
Inventors
- 👤 Donald L Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:51
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF PRODUCING PETROLEUM FROM AN UNDERGROUND PETROLEUM BEARING FORMATION INVOLVING AN INJECTION WELL AND TWO ADJACENT SUCCESSIVE PRODUCTION WELLS, SAID PRODUCTION WELLS BEING SUBSTANTIALLY IN-LINE WITH SAID INJECTION WELL, WHICH COMPRISES INTRODUCING INJECTION FLUID INTO SAID FORMATION VIA SAID INJECTION WELL, PRODUCING PETROLEUM FROM SAID FORMATION VIA THE PRODUCTION WELL CLOSER TO SAID INJECTION WELL, MAINTAINING THE PRODUCTION OF PETROLEUM FROM THE AFORESAID PRODUCTION WELL CLOSER TO SAID INJECTION WELL WHEN SAID INJECTION FLUID BEGINS TO
Claim 2
Independent Claim
78 words
A METHOD OF PRODUCING PETROLEUM FROM AN UNDERGROUND PETROLEUM BEARING FORMATION INVOLVING AN INJECTION WELL AND TWO ADJACENT SUCCESSIVE PRODUCTION WELLS, SAID PRODUCTION WELLS BEING SUBSTANTIALLY IN-LINE WITH SAID INJECTION WELL, WHICH COMPRISES INTRODUCING INJECTION FLUID INTO SAID FORMATION VIA SAID INJECTION WELL, PRODUCING PETROLEUM FROM SAID FORMATION VIA THE PRODUCTION WELL CLOSER TO SAID INJECTION WELL, MAINTAINING THE PRODUCTION OF PETROLEUM FROM THE AFORESAID PRODUCTION WELL CLOSER TO SAID INJECTION WELL WHEN SAID INJECTION FLUID BEGINS TO
References Cited (Backward Citations)
US1238355A
Cited
US2048731A
Cited
US2497868A
Cited
US2798556A
Cited
US2841375A
Cited
US2924276A
Cited
US2911206A
Cited
US2885003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |