US3330352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the subterranean storage of gas
Assignee: Union Oil Company of California
•
Filing: 1966-11-02
•
Granted: 1967-07-11
•
Expires: 1986-11-02
Abstract
No abstract record available.
Inventors
- 👤 George G Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:03
CPC Classifications
E; E21; E21B; E21B41/00; E21B41/005; E21B41/0057; E21B41/0064; B; B65; B65G; B65G5/00; Y; Y02; Y02C; Y02C20/00; Y02C20/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE METHOD OF STORING GAS IN A PERMEABLE SUBTERRANEAN FORMATION OVERLAIN BY A SUBSTANTIALLY IMPERVIOUS ROCK CAP, WHICH COMPRISES: INJECTING A SLUG OF VISCOUS AQUEOUS SOLUTION INTO SAID FORMATION THROUGH A WELL IN COMMUNICATION THEREWITH, SAID SOLUTION CONTAINING A MAJOR PROPORTION OF WATER, A VISCOSITY INCREASING AMOUNT OF A THICKENING AGENT AND A MINOR AMOUNT OF AN AGENT WHICH CAUSES FOAMING UPON CONTACT WITH SAID GAS;
Claim 2
Independent Claim
66 words
THE METHOD OF STORING GAS IN A PERMEABLE SUBTERRANEAN FORMATION OVERLAIN BY A SUBSTANTIALLY IMPERVIOUS ROCK CAP, WHICH COMPRISES: INJECTING A SLUG OF VISCOUS AQUEOUS SOLUTION INTO SAID FORMATION THROUGH A WELL IN COMMUNICATION THEREWITH, SAID SOLUTION CONTAINING A MAJOR PROPORTION OF WATER, A VISCOSITY INCREASING AMOUNT OF A THICKENING AGENT AND A MINOR AMOUNT OF AN AGENT WHICH CAUSES FOAMING UPON CONTACT WITH SAID GAS;
References Cited (Backward Citations)
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |