System and method for generating micro-seismic events and characterizing properties of a medium with non-linear acoustic interactions
US9223039B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 9, 2011 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Sep 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K15/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system includes generating a first coded acoustic signal including pulses each having a modulated signal at a central frequency; and a second coded acoustic signal each pulse of which includes a modulated signal a central frequency of which is a fraction d of the central frequency of the modulated signal for the corresponding pulse in the first plurality of pulses. A receiver detects a third signal generated by a non-linear mixing process in the mixing zone and the signal is processed to extract the third signal to obtain an emulated micro-seismic event signal occurring at the mixing zone; and to characterize properties of the medium or creating a 3D image of the properties of the medium, or both, based on the emulated micro-seismic event signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.