Method and system for microseismic event wavefront estimation
US10338246B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2016 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Dec 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/65
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the field of seismic data analysis, the problem of estimating features of a microseismic event waveform, detected at the sensors of a geophone array in the presence of background seismic energy and sensor noise, is considered. Embodiments of the present disclosure provide a method and system for estimating wavefront arrival times and polarizations across the sensors of an array, while simultaneously extracting the associated event sensor waveforms from the seismic background. The resulting waveform estimates are estimated in such a way that estimation errors are expected to be noise-like, and free of any systematic changes in the magnitude or phase of the arriving wavefronts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.