System and method for refining positions of marine seismic receivers
US10310125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2017 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | May 14, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/3817
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Seismic survey system and method for adjusting positions of plural autonomous receiver nodes (ARNs) of a seismic survey system. The method includes calculating first travel-times of direct arrivals of seismic waves, based on (i) offsets between shooting positions of seismic sources and recording positions of the plural ARNs, and (ii) a speed of the seismic waves in water; estimating second travel-times of the direct arrivals, based on seismic data recorded by the plural ARNs; estimating, in a computing device, positioning errors of one or more of the plural ARNs by applying an inversion algorithm to a misfit between the first and second travel-times; and adjusting the recording positions of the one or more ARNs with the positioning errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.