Methods and systems of detecting a microseismic event using an iterative non-linear inversion algorithm
US10338245B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2014 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Dec 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/123
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure includes a method including determining a spatial region for analysis and selecting a segment of time for analysis, analyzing and correcting a plurality of traces from a plurality of receivers using an iterative non-linear inversion algorithm, wherein each iteration of the non-linear algorithm corrects the plurality of traces using at least one set of parameters defining a microseismic event, determining whether a final stack value of the plurality of traces corrected based on the at least one set of parameters of a final iteration of the iterative non-linear inversion algorithm exceeds a predetermined threshold and upon a determination that the final stack value exceeds the predetermined threshold, detecting a microseismic event defined by the at least one set of parameters of final iteration. The present disclosure also includes associated systems and computer-readable media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.