US4400314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the ultimate disposal of high level radioactive waste
Assignee: Chevron USA Inc
•
Filing: 1980-10-14
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Granted: 1983-08-23
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Expires: 2000-10-14
Abstract
Abstract A method is disclosed for disposing of an aqueous solution of radioactive nuclides, in which the solution is diluted with formation water recovered from a subsea reservoir in a porous geological formation and, after dilution, the dilute solution is injected into the same subsea geological formation.
Inventors
- 👤 J. R. B. Ellis
- 👤 Bernard A. Fries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:33
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/20; G21F9/24; G21F9/26
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
55 words
A method for disposing of an aqueous solution of radioactive nuclides, comprising: (a) producing water from a water-containing, porous, generally horizontally-extending, water-permeable geological formation located below sorptive sedimentary geological strata; (b) forming a dilute solution of said nuclides by mixing produced water with said aqueous solution; and (c) injecting said dilute solution into said formation.
Claim 2
Independent Claim
55 words
A method for disposing of an aqueous solution of radioactive nuclides, comprising: (a) producing water from a water-containing, porous, generally horizontally-extending, water-permeable geological formation located below sorptive sedimentary geological strata; (b) forming a dilute solution of said nuclides by mixing produced water with said aqueous solution; and (c) injecting said dilute solution into said formation.
Claim 3
Dependent Claim
13 words
A method according to claim 1 wherein said formation is a subsea formation.
Claim 4
Dependent Claim
23 words
A method according to claim 2 wherein the upper boundary of said formation is located at least 1,600 meters below the sea floor.
Claim 5
Dependent Claim
17 words
A method according to claim 1 wherein said formation comprises a partially or wholly depleted petroleum reservoir.
Claim 6
Dependent Claim
26 words
A method according to claim 4 wherein petroleum is produced from said formation in a mixture with said formation water and separated from said formation water.
Claim 7
Dependent Claim
42 words
A method according to claim 1 wherein formation water is produced from a plurality of producing sites in said formation, said producing sites being horizontally spaced generally peripherally around an injection site, and said dilute solution is injected into said injection site.
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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) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |