US2667583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analysis of subsurface formations by radioactivity
Assignee: Texaco Inc
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Filing: 1951-02-03
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Granted: 1954-01-26
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Expires: 1971-02-03
Abstract
No abstract record available.
Inventors
- 👤 Herzog Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:11
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
THE METHOD OF LOGGING A BORE HOLE TO DETERMINE WHETHER A FORMATION TRAVERSED BY THE HOLE CONTAINS SALT WATER OR HYDROCARBON OIL, WHICH COMPRISES BOMBARDING SAID FORMATION WITH NEUTRONS FROM A SOURCE PASSED THROUGH THE BORE HOLE, MEASURING IN THE VICINITY OF SAID SOURCE NEUTRONS OF RELATIVELY LOW ENERGY SCATTERED IN THE FORMATION AND RETURNED TO THE HOLE, SIMULTANEOUSLY MEASURING ALSO IN THE VICINITY OF THE SOURCE NEUTRONS OF RELATIVELY HIGH ENERGY WHICH ARE SCATTERED IN THE FORMATION AND RETURN TO THE HOLE, AND COMPARING THE MEASURED INTENSITIES OF THE NEUTRONS OF BOTH LOW AND HIGH ENERGIES AS THE SOURCE PASSED VERTICALLY THROUGH THE FORMATION BEING BOMBARDED.
Claim 2
Independent Claim
107 words
THE METHOD OF LOGGING A BORE HOLE TO DETERMINE WHETHER A FORMATION TRAVERSED BY THE HOLE CONTAINS SALT WATER OR HYDROCARBON OIL, WHICH COMPRISES BOMBARDING SAID FORMATION WITH NEUTRONS FROM A SOURCE PASSED THROUGH THE BORE HOLE, MEASURING IN THE VICINITY OF SAID SOURCE NEUTRONS OF RELATIVELY LOW ENERGY SCATTERED IN THE FORMATION AND RETURNED TO THE HOLE, SIMULTANEOUSLY MEASURING ALSO IN THE VICINITY OF THE SOURCE NEUTRONS OF RELATIVELY HIGH ENERGY WHICH ARE SCATTERED IN THE FORMATION AND RETURN TO THE HOLE, AND COMPARING THE MEASURED INTENSITIES OF THE NEUTRONS OF BOTH LOW AND HIGH ENERGIES AS THE SOURCE PASSED VERTICALLY THROUGH THE FORMATION BEING BOMBARDED.
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) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |