US3036630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-flood process for claycontaining formation
Assignee: Pure Oil Co
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Filing: 1961-01-09
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Granted: 1962-05-29
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 George G Bernard
- 👤 Orrin C Holbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:04
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/607; Y; Y10; Y10S; Y10S507/00; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A WATER-FLOODING PROCESS FOR THE PRODUCTION FROM A PRODUCING WELL OF PETROLEUM OIL FROM AN UNDERGROUND FORMATION CONTAINING WATER-SENSITIVE CLAY COMPRISING REMOVING MOST OF THE WATER FROM THE PORTION OF THE FORMATION ADJACENT AN INJECTION WELL, BY INJECTING A WATER-SOLUBLE SOLVENT INTO SAID PORTION OF THE FORMATION, THEN IN SEQUENCE INJECTING INTO SAID PORTION OF SAID FORMATION THROUGH SAID WELL A SILICONE WATER-PROOFING AGENT, PETROLEUM OIL AND A WATER-FLOODING FLUID, AND FORCING SAID FLUID INTO THE PRODUCING FORMATION TOWARD SAID PRODUCING WELL.
Claim 2
Dependent Claim
82 words
A WATER-FLOODING PROCESS FOR THE PRODUCTION FROM A PRODUCING WELL OF PETROLEUM OIL FROM AN UNDERGROUND FORMATION CONTAINING WATER-SENSITIVE CLAY COMPRISING REMOVING MOST OF THE WATER FROM THE PORTION OF THE FORMATION ADJACENT AN INJECTION WELL, BY INJECTING A WATER-SOLUBLE SOLVENT INTO SAID PORTION OF THE FORMATION, THEN IN SEQUENCE INJECTING INTO SAID PORTION OF SAID FORMATION THROUGH SAID WELL A SILICONE WATER-PROOFING AGENT, PETROLEUM OIL AND A WATER-FLOODING FLUID, AND FORCING SAID FLUID INTO THE PRODUCING FORMATION TOWARD SAID PRODUCING WELL.
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) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |