Patent US3001935A successfully refreshed from Google Patents.
US3001935A
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Process for the control of bacteria in water flooding operations
Assignee: Commercial Solvents Corp
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Filing: 1959-05-13
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Granted: 1961-09-26
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Expires: 1979-05-13
Abstract
No abstract record available.
Inventors
- 👤 Edward O Bennett
- 👤 Edward B Hodge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:58
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/02; A01N37/04; C; C02; C02F; C02F1/00; C02F1/50; Y; Y10; Y10S; Y10S507/00; Y10S507/92; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN THE PROCESS OF SECONDARY OIL RECOVERY CHARACTERIZED BY THE STEP OF INJECTING FLOODING WATER INTO OILBEARING SUBTERRANEAN FORMATIONS TO DISPLACE PORTIONS OF THE RESIDUAL OIL THEREIN, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID INJECTED FLOODING WATER IN EXCESS OF ABOUT 2-5 P.P.M. OF BIS(2-NITROBUTYL) SUCCINATE TO INHIBIT THE GROWTH OF SULFATE REDUCING BACTERIA WITHIN SAID FORMATIONS.
Claim 2
Dependent Claim
57 words
IN THE PROCESS OF SECONDARY OIL RECOVERY CHARACTERIZED BY THE STEP OF INJECTING FLOODING WATER INTO OILBEARING SUBTERRANEAN FORMATIONS TO DISPLACE PORTIONS OF THE RESIDUAL OIL THEREIN, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID INJECTED FLOODING WATER IN EXCESS OF ABOUT 2-5 P.P.M. OF BIS(2-NITROBUTYL) SUCCINATE TO INHIBIT THE GROWTH OF SULFATE REDUCING BACTERIA WITHIN SAID FORMATIONS.
References Cited (Backward Citations)
US1873732A
Cited
US2368765A
Cited
GB664339A
Cited
US2692231A
Cited
US2839467A
Cited
US2917428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |