US3176768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sand consolidation
Assignee: California Research LLC
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Filing: 1964-07-27
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Granted: 1965-04-06
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 Brandt Harry
- 👤 Jr Phillip H Parker
- 👤 Barney R Treadway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:51
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
METHOD OF CONSOLIDATING AN INCOMPETENT EARTH FORMATION OF LOOSE SAND PARTICLES TRAVERSED BY A BOREHOLE, WHICH COMPRISES INJECTING THROUGH SAID BOREHOLE INTO SAID EARTH FORMATION A MIXTURE COMPRISING, BY WEIGHT, ABOUT 40 TO 95% OF AN EPOXY RESIN HAVING A MOLECULAR WEIGHT OF ABOUT 400-700 AND A VISCOSITY AT THE TEMPERATURE OF THE EARTH FORMATION ABOVE ABOUT 400 CENTIPOISES, AND A NORMALLY LIQUID REACTIVE DILUENT IN AN AMOUNT WITHIN ABOUT THE RANGE 5 TO 60% TO REDUCE THE VISCOSITY OF THE EPOXY RESIN BELOW ABOUT 400 BUT ABOVE ABOUT 25 CENTIPOISES AT THE TEMPERATURE OF THE EARTH FORMATION; FLUSHING THE TREATED FORMATION WITH A FLUSHING FLUID THAT IS SUBSTANTIALLY IMMISCIBLE WITH SAID EPOXY RESIN BUT IS MISCIBLE WITH THE REACTIVE DILUENT TO IMPART PERMEABILITY TO THE TREATED FORMATION BY DISPLACING THE EPOXY RETSIN WHILE LEAVING A FILM OF EPOXY RESIN AROUND THE SAND PARTICLES AND TO EXTRACT THE REACTIVE DILUENT; THEN CONTACTING SAID EPOXY RESIN FILM WITH A CURING AGENT TO HARDEN THE RESIN.
Claim 2
Dependent Claim
164 words
METHOD OF CONSOLIDATING AN INCOMPETENT EARTH FORMATION OF LOOSE SAND PARTICLES TRAVERSED BY A BOREHOLE, WHICH COMPRISES INJECTING THROUGH SAID BOREHOLE INTO SAID EARTH FORMATION A MIXTURE COMPRISING, BY WEIGHT, ABOUT 40 TO 95% OF AN EPOXY RESIN HAVING A MOLECULAR WEIGHT OF ABOUT 400-700 AND A VISCOSITY AT THE TEMPERATURE OF THE EARTH FORMATION ABOVE ABOUT 400 CENTIPOISES, AND A NORMALLY LIQUID REACTIVE DILUENT IN AN AMOUNT WITHIN ABOUT THE RANGE 5 TO 60% TO REDUCE THE VISCOSITY OF THE EPOXY RESIN BELOW ABOUT 400 BUT ABOVE ABOUT 25 CENTIPOISES AT THE TEMPERATURE OF THE EARTH FORMATION; FLUSHING THE TREATED FORMATION WITH A FLUSHING FLUID THAT IS SUBSTANTIALLY IMMISCIBLE WITH SAID EPOXY RESIN BUT IS MISCIBLE WITH THE REACTIVE DILUENT TO IMPART PERMEABILITY TO THE TREATED FORMATION BY DISPLACING THE EPOXY RETSIN WHILE LEAVING A FILM OF EPOXY RESIN AROUND THE SAND PARTICLES AND TO EXTRACT THE REACTIVE DILUENT; THEN CONTACTING SAID EPOXY RESIN FILM WITH A CURING AGENT TO HARDEN THE RESIN.
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |