US3303879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous treating liquid for permeable earth formations
Assignee: Mobil Oil AS
•
Filing: 1964-09-28
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Granted: 1967-02-14
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Sherrod A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:02
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A METHOD OF TREATING A SUBTERRANEAN FORMATION, THE STEP COMPRISING PASSING INTO SAID FORMATION WATER HAVING INCORPORATED THEREIN A QUANTITY SUFFICIENT TO PROVIDE A SOLUTION WHICH IS VISCOELSTIC AND IS ALSO A SHEER HARDENING, POSTIVE NONSIMPLE LIQUID OF AN ADDITIVE SYSTEM SELECTED FROM THE CLASS CONSISTING OF: (A) ALKALI METAL SOAP OF TALL OIL ACID AND A SALT WHICH FORMS A STRONG ELECTROLYTE IN WATER, (B) AMMONIUM SOAP OF TALL OIL ACID AND A MATERIAL WHICH FORMS AT LEAST A WEAK ELECTROLYTE IN WATER, AND (C) AN AMINE SOAP OF TALL OIL ACID.
Claim 2
Dependent Claim
94 words
IN A METHOD OF TREATING A SUBTERRANEAN FORMATION, THE STEP COMPRISING PASSING INTO SAID FORMATION WATER HAVING INCORPORATED THEREIN A QUANTITY SUFFICIENT TO PROVIDE A SOLUTION WHICH IS VISCOELSTIC AND IS ALSO A SHEER HARDENING, POSTIVE NONSIMPLE LIQUID OF AN ADDITIVE SYSTEM SELECTED FROM THE CLASS CONSISTING OF: (A) ALKALI METAL SOAP OF TALL OIL ACID AND A SALT WHICH FORMS A STRONG ELECTROLYTE IN WATER, (B) AMMONIUM SOAP OF TALL OIL ACID AND A MATERIAL WHICH FORMS AT LEAST A WEAK ELECTROLYTE IN WATER, AND (C) AN AMINE SOAP OF TALL OIL ACID.
References Cited (Backward Citations)
US2233382A
Cited
US2341500A
Cited
US2604947A
Cited
US2670048A
Cited
US2825409A
Cited
US2927639A
Cited
US3170514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |