US3759327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally catalyzed well consolidation method
Assignee: Halliburton Co
•
Filing: 1972-01-07
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Granted: 1973-09-18
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Expires: 1992-01-07
Abstract
Abstract A method is disclosed for permeably consolidating sands in a well wherein a consolidating fluid comprising a hydrocarbon carrier, an acid catalyzed resin or resin-forming material, sand and an acid-producing material are introduced into an incompetent earth formation where acid is produced by the acid-producing material, causing the resin to harden. Specific acid-producing materials are disclosed as catalysts which comprise surfactants which release acid upon heating and ammonium salts which hydrolyze to produce an acid.
Inventors
- 👤 J Carnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:47
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/502; C09K8/56; C09K8/565
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
25 words
The process of claim 1 wherein the resin-forming fluid is selected from the group consisting of furan resin, phenol formaldehyde resin and urea formaldehyde resin.
Claim 2
Dependent Claim
11 words
The process of claim 1 wherein the resin is furan resin.
Claim 3
Dependent Claim
32 words
The process of claim 1 wherein said catalyst is present in a concentration of from about 0.3 gallon per gallon of resin-forming fluid to about 1.0 gallon per gallon of resin-forming fluid.
Claim 4
Dependent Claim
44 words
The process of claim 1 characterized by the additional step, following the step of adding an acid catalyzed resin, of: adding to the mixture of hydrocarbon liquid, resin-forming fluid and catalyst from about 0.25 to about 5 pounds per gallon of a particulated solid.
References Cited (Backward Citations)
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US2796934A
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US3282338A
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US3404735A
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US3537522A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |