US3292698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating permeable formations with aqueous positive nonsimple flooding liquids
Assignee: Mobil Oil AS
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Filing: 1964-06-26
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Granted: 1966-12-20
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Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Savins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:26
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A METHOD OF TREATING A SUBTERRANEAN FORMATION, THE STEP COMPRISING PASSING INTO SAID FORMATION WATER HAVING INCORPORATED THEREIN QUANTITIES SUFFICIENT TO PROVIDE A SOLUTION WHICH IS VISCOELASTIC AND IS ALSO A SHEAR HARDENING, POSITIVE NONSIMPLE LIQUID OF AN ADDITIVE SYSTEM SELECTED FROM THE CLASS CONSISTING OF (1) UNDECANE-3-SODIUM SULFATE AND CYCLOHEXYLAMMONIUM CHLORIDE, AND (2) SODIUM ELAIDATE, SODIUM CHLORIDE AND CAUSTIC.
Claim 2
Dependent Claim
61 words
IN A METHOD OF TREATING A SUBTERRANEAN FORMATION, THE STEP COMPRISING PASSING INTO SAID FORMATION WATER HAVING INCORPORATED THEREIN QUANTITIES SUFFICIENT TO PROVIDE A SOLUTION WHICH IS VISCOELASTIC AND IS ALSO A SHEAR HARDENING, POSITIVE NONSIMPLE LIQUID OF AN ADDITIVE SYSTEM SELECTED FROM THE CLASS CONSISTING OF (1) UNDECANE-3-SODIUM SULFATE AND CYCLOHEXYLAMMONIUM CHLORIDE, AND (2) SODIUM ELAIDATE, SODIUM CHLORIDE AND CAUSTIC.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |