US3289759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for transporting surfactants thru permeable strata
Assignee: Phillips Petroleum Co
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Filing: 1963-12-23
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Granted: 1966-12-06
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Henry B Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:57
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A PROCESS FOR TRANSPORTING A NON-IONIC SURFACTANT THRU A PERMEABLE SUBTERRANEAN STRATUM WHICH COMPRISES THE STEPS OF: (1) INJECTING INTO SAID STRATUM THRU A WELL THEREIN, A SOLUTION OF SAID SURFACTANT IN AN AQUEOUS MEDIUM SELECTED FROM THE GROUP CONSISTING OF FRESH WATER AND AN AQUEOUS SOLUTION OF SODIUM CHLORIDE, THEREBY CAUSING SORPTION OF SAID SURFACTANT ON THE STRATUM; (2) THEREAFTER, INJECTING INTO SAID STRATUM THRU SAID WELL, AN AQUEOUS SOLUTION OF AT LEAST ONE ALKALINE EARTH METAL HALIDE SO AS TO CONVERT SAID SURFACTANT TO THE CORRESPONDING SURFACTANT-ALKALINE EARTH METAL HALIDE COMPLEX AND DESORB SAME; (3) PUSHING THE COMPLEX FORMED IN STEP (2) DEEPER INTO SAID STRATUM BY INJECTION OF FLUID THRU SAID WELL; (4) THEREAFTER, INJECTING INTO SAID STRATUM THRU SAID WELL AQUEOUS LIQUID SELECTED FROM THE GROUP CONSISTING OF FRESH WATER AND A SOLUTION OF SODIUM CHLORIDE SO AS TO DILUTE THE SOLUTION OF COMPLEXED SURFACTANT IN THE STRATUM AND DECOMPOSE SAME TO FREE SAID SURFACTANT, THEREBY AGAIN EFFECTING SORPTION OF SAID SURFACTANT ON THE STRATUM MORE REMOTE FROM SAID WELL.
Claim 2
Dependent Claim
174 words
A PROCESS FOR TRANSPORTING A NON-IONIC SURFACTANT THRU A PERMEABLE SUBTERRANEAN STRATUM WHICH COMPRISES THE STEPS OF: (1) INJECTING INTO SAID STRATUM THRU A WELL THEREIN, A SOLUTION OF SAID SURFACTANT IN AN AQUEOUS MEDIUM SELECTED FROM THE GROUP CONSISTING OF FRESH WATER AND AN AQUEOUS SOLUTION OF SODIUM CHLORIDE, THEREBY CAUSING SORPTION OF SAID SURFACTANT ON THE STRATUM; (2) THEREAFTER, INJECTING INTO SAID STRATUM THRU SAID WELL, AN AQUEOUS SOLUTION OF AT LEAST ONE ALKALINE EARTH METAL HALIDE SO AS TO CONVERT SAID SURFACTANT TO THE CORRESPONDING SURFACTANT-ALKALINE EARTH METAL HALIDE COMPLEX AND DESORB SAME; (3) PUSHING THE COMPLEX FORMED IN STEP (2) DEEPER INTO SAID STRATUM BY INJECTION OF FLUID THRU SAID WELL; (4) THEREAFTER, INJECTING INTO SAID STRATUM THRU SAID WELL AQUEOUS LIQUID SELECTED FROM THE GROUP CONSISTING OF FRESH WATER AND A SOLUTION OF SODIUM CHLORIDE SO AS TO DILUTE THE SOLUTION OF COMPLEXED SURFACTANT IN THE STRATUM AND DECOMPOSE SAME TO FREE SAID SURFACTANT, THEREBY AGAIN EFFECTING SORPTION OF SAID SURFACTANT ON THE STRATUM MORE REMOTE FROM SAID WELL.
References Cited (Backward Citations)
US3056452A
Cited
US3175610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |