Patent US3531031A successfully refreshed from Google Patents.
Patent US3205941A successfully refreshed from Google Patents.
US3205941A
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Techniques useful in determining fractures or density discontinuities in formations
Assignee: Halliburton Co
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Filing: 1962-06-15
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Granted: 1965-09-14
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Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
- 👤 Walker Terry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:43
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/02; G; G01; G01V; G01V1/00; G01V1/40; G01V1/44; G01V1/48; G01V1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A METHOD FOR DETERMINING THE RELATIVE DEGREE OF STRUCTURAL VARIATIONS IN A FORMATION TRAVERSED BY A BORE HOLE, THE STEPS COMPRISING TRANSMITTING RECURRENT PULSES OF ACOUSTICAL ENERGY, EACH OF THE SAME INTENSITY, INTO SAID FORMATION, MEASURING THE AMPLITUDE OF SAID ENERGY WHICH IS TRANSMITTED AND RECEIVED THROUGH THE FORMATION TO OBTAIN A RECORDING OF THE AMPLITUDE OF SAID ENERGY, TRANSMITTING RECURRENT PULSES OF ACOUSTICAL ENERGY, EACH OF THE SAME INTENSITY, THROUGH A HOMOGENEOUS FORMATION OF THE SAME COMPOSITION AS SAID FORMATION, MEASURING, UNDER LIKE CONDITIONS, THE AMPLITUDE OF ACOUSTICAL ENERGY SO TRANSMITTED THROUGH SAID HOMOGENEOUS FORMATION AND COMPARING THE FIRST MENTIONED AMPLITUDE WITH THE SECOND MENTIONED AMPLITUDE TO ESTABLISH A DEGREE OF FRACTURE OF SAID FORMATION.
Claim 2
Independent Claim
116 words
A METHOD FOR DETERMINING THE RELATIVE DEGREE OF STRUCTURAL VARIATIONS IN A FORMATION TRAVERSED BY A BORE HOLE, THE STEPS COMPRISING TRANSMITTING RECURRENT PULSES OF ACOUSTICAL ENERGY, EACH OF THE SAME INTENSITY, INTO SAID FORMATION, MEASURING THE AMPLITUDE OF SAID ENERGY WHICH IS TRANSMITTED AND RECEIVED THROUGH THE FORMATION TO OBTAIN A RECORDING OF THE AMPLITUDE OF SAID ENERGY, TRANSMITTING RECURRENT PULSES OF ACOUSTICAL ENERGY, EACH OF THE SAME INTENSITY, THROUGH A HOMOGENEOUS FORMATION OF THE SAME COMPOSITION AS SAID FORMATION, MEASURING, UNDER LIKE CONDITIONS, THE AMPLITUDE OF ACOUSTICAL ENERGY SO TRANSMITTED THROUGH SAID HOMOGENEOUS FORMATION AND COMPARING THE FIRST MENTIONED AMPLITUDE WITH THE SECOND MENTIONED AMPLITUDE TO ESTABLISH A DEGREE OF FRACTURE OF SAID FORMATION.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |