US3294165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating permeable earth formations
Assignee: Shell USA Inc
•
Filing: 1963-08-05
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Granted: 1966-12-27
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Expires: 1983-08-05
Abstract
No abstract record available.
Inventors
- 👤 Franciscus H Meijs
- 👤 Marinus Van Zanten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:26
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C09; C09K; C09K17/00; C09K8/00; C09K8/50; C09K8/502; C09K8/504; C09K8/506; C09K8/508; C09K8/5086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD FOR TREATING A POROUS EARTH FORMATION WHICH COMPRISES (A) PREPARING A SOLUTION COMPRISING AN ALCOHOLIC SOLVENT, AND EPOXY RESIN HAVING MORE THAN ONE VICINAL EPOXY GROUP PER MOLECULE, AN AMINE CURING AGENT FOR SAID EPOXY RESIN, THE TOTAL AMOUNT OF EPOXY RESIN AND CURING AGENT BEING BETWEEN 3 AND 50 VOLUME PERCENT OF SAID SOLUTION, THE COMPOSITION OF SAID SOLUTION BEING PREDETERMINED TO MAINTAIN THE REACTION PRODUCT OF SAID RESIN AND AMINE IN SOLUTION FOR THE TIME REQUIRED TO INJECT SAID SOLUTION INTO SAID FORMATION, (B) INJECTING SAID SOLUTION INTO SAID FORMATION, AND (C) RETAINING SAID SOLUTION IN SAID FORMATION FOR A SUFFICIENT TIME TO PERMIT PARTIALLY CURED EPOXY RESIN TO SEPARATE FROM SAID SOLUTION, DEPOSIT ON THE SAND GRAINS OF SAID FORMATION, AND CURE TO A HARD, CROSSLINKED, HYDROCARBON INSOLUBLE RESIN.
Claim 2
Independent Claim
134 words
A METHOD FOR TREATING A POROUS EARTH FORMATION WHICH COMPRISES (A) PREPARING A SOLUTION COMPRISING AN ALCOHOLIC SOLVENT, AND EPOXY RESIN HAVING MORE THAN ONE VICINAL EPOXY GROUP PER MOLECULE, AN AMINE CURING AGENT FOR SAID EPOXY RESIN, THE TOTAL AMOUNT OF EPOXY RESIN AND CURING AGENT BEING BETWEEN 3 AND 50 VOLUME PERCENT OF SAID SOLUTION, THE COMPOSITION OF SAID SOLUTION BEING PREDETERMINED TO MAINTAIN THE REACTION PRODUCT OF SAID RESIN AND AMINE IN SOLUTION FOR THE TIME REQUIRED TO INJECT SAID SOLUTION INTO SAID FORMATION, (B) INJECTING SAID SOLUTION INTO SAID FORMATION, AND (C) RETAINING SAID SOLUTION IN SAID FORMATION FOR A SUFFICIENT TIME TO PERMIT PARTIALLY CURED EPOXY RESIN TO SEPARATE FROM SAID SOLUTION, DEPOSIT ON THE SAND GRAINS OF SAID FORMATION, AND CURE TO A HARD, CROSSLINKED, HYDROCARBON INSOLUBLE RESIN.
References Cited (Backward Citations)
US3123138A
Cited
US3100527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |