US3506069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovering petroleum utilizing a nuclear explosion
Assignee: Richfield Oil Corp
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Filing: 1963-09-23
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Granted: 1970-04-14
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Manley L Natland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:22
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/2403
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A METHOD FOR THE RECOVERY OF PETROLEUM FROM A SUBSURFACE OIL-BEARING FORMATION, HAVING AN ADJACENT LIMESTONE STRATUM, THE STEPS WHICH COMPRISE ESTABLISHING A NUCLEAR EXPLOSION AT A POINT IN PROXIMITY TO THE OIL-BEARING FORMATION TO FORM A CAVITY IN SAID LIMESTONE STRATUM AND TO FORM CALCIUM OXIDE AND CARBON DIOXIDE FROM SAID LIMESTONE STRATUM USING THE HEAT PRODUCED AS A RESULT OF THE NUCLEAR EXPLOSION, REMOVING THE CARBON DIOXIDE, CONTACTING THE CALCIUM OXIDE IN THE AREA OF THE CAVITY WITH WATER TO PRODUCE HEAT AS A RESULT OF THE REACTION BETWEEN THE WATER AND CALCIUM OXIDE FOR FURTHER HEATING THE OILBEARING FORMATION, AND RECOVERING OIL FRO SAID OIL-BEARING FORMATION.
Claim 2
Dependent Claim
110 words
IN A METHOD FOR THE RECOVERY OF PETROLEUM FROM A SUBSURFACE OIL-BEARING FORMATION, HAVING AN ADJACENT LIMESTONE STRATUM, THE STEPS WHICH COMPRISE ESTABLISHING A NUCLEAR EXPLOSION AT A POINT IN PROXIMITY TO THE OIL-BEARING FORMATION TO FORM A CAVITY IN SAID LIMESTONE STRATUM AND TO FORM CALCIUM OXIDE AND CARBON DIOXIDE FROM SAID LIMESTONE STRATUM USING THE HEAT PRODUCED AS A RESULT OF THE NUCLEAR EXPLOSION, REMOVING THE CARBON DIOXIDE, CONTACTING THE CALCIUM OXIDE IN THE AREA OF THE CAVITY WITH WATER TO PRODUCE HEAT AS A RESULT OF THE REACTION BETWEEN THE WATER AND CALCIUM OXIDE FOR FURTHER HEATING THE OILBEARING FORMATION, AND RECOVERING OIL FRO SAID OIL-BEARING FORMATION.
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) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |