System for obtaining uniform presentation of acoustic well logging data
Abstract
Abstract THE SPECIFICATION DISCLOSES A DIRECTIONAL ACOUSTIC TRANSDUCER SUPPORTED FOR ROTATION IN A BOREHOLE AND OPERATED PERIODICALLY TO TRANSMIT ACOUSTIC PULSES TO THE BOREHOLE WALL AND TO DETECT REFLECTED ACOUSTIC ENERGY. CIRCUITRY IS EMPLOYED TO PRODUCE OUTPUT SIGNALS OF THE SAME AMPLITUDE AND WIDTH IN RESPONSE TO THE REFLECTED ACOUSTIC ENERGY DETECTED. ONLY ONE OUTPUT SIGNAL IS PRODUCED DURING EACH PERIOD OF OPERATION OF THE TRANSDUCER AND WHICH IS REPRESENTATIVE OF THE PRIMARY REFLECTION OF ACOUSTIC ENERGY FROM THE BOREHOLE WALL. THE OUTPUT SIGNALS PRODUCED ARE APPLIED TO AN OSCILLOSCOPE TO MODULATE THE INTENSITY OF ITS ELECTRON BEAM WHICH IS SWEPT ACROSS THE SCREEN OF THE SCOPE ONCE FOR EACH ROTATION OF THE TRANSDUCER.
Inventors
- 👤 Joseph Zemanek Jr
Bibliographic Details
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |