Process and an apparatus for seismic geophysics with processing by focuses
US4403313A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1980 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Dec 17, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to seismic prospecting of the sub-surface. At least two adjacent focuses F and F', at least one reflecting interface H and directions such as (D.sub.1) and (D.sub.2) are selected in the sub-surface. A seismic trace, from which a portion containing the effect due to the reflecting interval is extracted, is made to correspond to each direction and to each focus. The correlation function between the two trace portions relative to two adjacent focuses and the same direction is then determined. The correlation functions obtained are finally summed for the different directions. Application to high resolution seismic prospecting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.