Patent US3306354A successfully refreshed from Google Patents.
US3306354A
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Method for storing fluids in a subterranean formation
Assignee: Union Oil Company of California
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Filing: 1964-06-05
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Granted: 1967-02-28
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Expires: 1984-06-05
Abstract
No abstract record available.
Inventors
- 👤 Leo J O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:42
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
IN THE METHOD OF STORING A FLUID IN A SUBTERRANEAN FORMATION WHEREIN THE FLUID TO BE STORED IS INJECTED AT AN ELEVATED PRESSURE INTO A FIRST PERMEABLE FLUID STORAGE ZONE OVERLAIN BY A STRATUM OF RELATIVELY FLUID IMPERMEABLE CAP ROCK AND A SECOND FLUID PERMEABLE ZONE ABOVE SAID CAP ROCK, THE IMPROVEMENT WHICH COMPRISES INHIBITING THE LEAKAGE OF SAID STORED FLUID FROM SAID FIRST PERMEABLE FLUID
Claim 2
Dependent Claim
66 words
IN THE METHOD OF STORING A FLUID IN A SUBTERRANEAN FORMATION WHEREIN THE FLUID TO BE STORED IS INJECTED AT AN ELEVATED PRESSURE INTO A FIRST PERMEABLE FLUID STORAGE ZONE OVERLAIN BY A STRATUM OF RELATIVELY FLUID IMPERMEABLE CAP ROCK AND A SECOND FLUID PERMEABLE ZONE ABOVE SAID CAP ROCK, THE IMPROVEMENT WHICH COMPRISES INHIBITING THE LEAKAGE OF SAID STORED FLUID FROM SAID FIRST PERMEABLE FLUID
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |