Simultaneous conventional and phase-encoded seismic acquisition
US9250336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Dec 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a process for two separate seismic crews to work in proximity to one another that would otherwise require expensive time sharing where one crew is a conventional seismic acquisition system and the other is a phase encoded seismic acquisition system. Typically, each recording system would receive seismic energy from the other that neither data set would be very useful. The invention primarily envisions some collaboration between the crews where each adjusts its sweeps to comprise a different time duration so that the energy the other crew's sources are distinguishable in the data set and easily eliminated therefrom. Distinctions may be further enhanced when the two crews use construct their sweeps so that each crew has a distinctly different start frequency and a distinctly different end frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.