US3286163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for mapping a salt dome at depth by measuring the travel time of electromagnetic energy emitted from a borehole drilled within the salt dome
Assignee: Chevron USA Inc
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Filing: 1963-01-23
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Granted: 1966-11-15
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Expires: 1983-01-23
Abstract
No abstract record available.
Inventors
- 👤 William T Holser
- 👤 Robert R Unterberger
- 👤 Stanley B Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:57
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE METHOD OF MAPPING THE LOCATION OF THE FLANK OF A SALT DOME AT A KNOWN DEPTH IN THE EARTH WHICH COMPRISES DRILLING A WELL BORE INTO THE SALT DOME AND EXTENDING TO A PREDETERMINED DEPTH, POSITIONING AN ELECTRICMAGNETIC ENERGY TRANSMITTING AND RECEIVING SYSTEM IN SAID WELL BORE AT SAID DEPTH, SUPPLYING AND RECEIVING ELECTROMAGNETIC ENERGY AT A FREQUENCY WITHIN A FREQUENCY RANGE FROMK 106 TO 1010 CYCLES PER SECOND AND FROM 2X1013 TO 1015 CYCLES PER SECOND FOR TRANSMISSION AND REFLECTION THROUGH SAID SALT DOME AT SAID DEPTH, AND RECORDING AT THE EARTH''S SURFACE AN INDICATION OF THE TWO-WAY TRAVEL TIME OF SAID ELECTROMAGNETIC ENERGY TO AND FROM SAID FLANK AT SAID MAPPING DEPTH.
Claim 2
Independent Claim
115 words
THE METHOD OF MAPPING THE LOCATION OF THE FLANK OF A SALT DOME AT A KNOWN DEPTH IN THE EARTH WHICH COMPRISES DRILLING A WELL BORE INTO THE SALT DOME AND EXTENDING TO A PREDETERMINED DEPTH, POSITIONING AN ELECTRICMAGNETIC ENERGY TRANSMITTING AND RECEIVING SYSTEM IN SAID WELL BORE AT SAID DEPTH, SUPPLYING AND RECEIVING ELECTROMAGNETIC ENERGY AT A FREQUENCY WITHIN A FREQUENCY RANGE FROMK 106 TO 1010 CYCLES PER SECOND AND FROM 2X1013 TO 1015 CYCLES PER SECOND FOR TRANSMISSION AND REFLECTION THROUGH SAID SALT DOME AT SAID DEPTH, AND RECORDING AT THE EARTH''S SURFACE AN INDICATION OF THE TWO-WAY TRAVEL TIME OF SAID ELECTROMAGNETIC ENERGY TO AND FROM SAID FLANK AT SAID MAPPING DEPTH.
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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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |