Systems and methods for enhancing low-frequency content in vibroseis acquisition
US7327633B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Jan 13, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates in general to vibroseis and, more specifically, but not by way of limitation, to the enhancement and/or signal strength optimization of low frequency content of seismic signals for use in surveying boreholes and/or subsurface earth formations. In embodiments of the present invention, physical properties of a seismic vibrator may be analyzed and used to provide for determination of a driving force necessary to drive a reaction mass to produce a sweep signal with enhanced low frequency content for injection into the ground for vibroseis. In certain aspects, the physical properties may be considered independent of any geophysical properties related to operation of the seismic vibrator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.