Patent US3707191A successfully refreshed from Google Patents.
US3707191A
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Gel fluid water flooding method
Assignee: Phillips Petroleum Co
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Filing: 1970-05-27
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Granted: 1972-12-26
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Expires: 1990-05-27
Abstract
Abstract A method of raising and lowering the injection rate of a gel flood water for controlling the flood front.
Inventors
- 👤 Harry W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:17
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/588
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
21 words
A method, as set forth in claim 1, wherein steps A and B are repeated not greater than twice a week.
Claim 2
Dependent Claim
14 words
A method, as set forth in claim 1, wherein the second rate is zero.
Claim 3
Dependent Claim
27 words
A method, as set forth in claim 1, wherein the first rate is controlled to maintain an injection pressure lower than the fracturing pressure of the formation.
Claim 4
Dependent Claim
46 words
A method, as set forth in claim 1, wherein the gel forming materials are selected from at least one of a group consisting of partially hydrolyzed polyvalent iron ion gelled polyacrylamides, partially hydrolyzed, formaldehyde gelled polyacrylamides, dicromate gelled Lignosulfonate, and polyvalent metal ion gelled carboxymethyl cellulose.
Claim 5
Dependent Claim
36 words
A method, as set forth in claim 1, wherein the gel forming material is a polymer mixed with the flood water at a concentration in the range of about 0.01 percent to 0.5 percent by volume.
Claim 6
Dependent Claim
41 words
A method, as set forth in claim 1, wherein there are a plurality of injection wells through which the flood water and gel forming material is injected and a plurality of producing wells through which hydrocarbons are produced from the formation.
References Cited (Backward Citations)
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US3020953A
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US3018826A
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Cited
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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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |