Determination of geophone coupling
US7272505B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Aug 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Information about coupling of a seismic receiver is obtained from a power spectrum for a record acquired at a seismic receiver. In one method, the power spectrum for the record is compared with a reference power spectrum, which may be known a priori or which may be determined from the power spectra of records acquired by a group of receivers. In an alternative method, one receiver of a group of receivers is designated as a reference receiver, and the power spectra of records acquired by other receivers in the group are compared with a power spectrum for the reference receiver. The obtained information about the coupling of a receiver may be used to determine a coupling correction operator for the receiver, and this operator can be applied to seismic data acquired by the receiver to correct for the effects of imperfect coupling of the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.