Seismic receivers as seismic sources
US10274621B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2012 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Mar 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/181
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Seismic surveying techniques are described in which seismic receivers in a seismic array are used as seismic sources. These receiver-sources may be used to determine the near-surface structures of the Earth, geometric properties of the survey array, receiver locations and operations of the survey array. The receiver-sources may be driven by drive sequences to produce amplified receiver-source signals, plane waves, surface waves converging towards a point inside the seismic array, surface waves sweeping through the seismic array and/or the like. The receiver-sources may comprise geophones, hydrophones, accelerometers and/or the like. A driver may be used to drive the receiver-sources and the driver may be controlled by a processor. By encoding drive sequences, seismic data generated by the receiver-sources may be separated from seismic data generated by another seismic source in the seismic array. Similarly, seismic data can be separated by controlling the frequency of seismic signals produced by the receiver-sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.