Methods for determining the position of seismic equipment, and applications of the methods
US5668775A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 1995 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Sep 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining the position of seismic equipment wherein acoustic transmitters transmit spread spectrum sequences which are received by the seismic sensors in the equipment whose position has to be determined. By collecting and processing the signals thus produced, it is possible to determine the position of seismic equipment with reference to each individual sensor in the seismic equipment each time a measurement is take. The already existing conventional seismic sensors which are provided in a streamer are used to record the transmitted spread spectrum signals. By calculating time differences between the sensors' reception of a spread spectrum signal it is possible to calculate the position of the seismic equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.