Marine surveying
US10302790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2015 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Dec 11, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/1423
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for surveying the structure beneath the seabed, comprising: a survey vessel; a streamer comprising a cable, a first set of N1 sensor groups positioned at a first end portion of the cable, the sensor groups of the first set being spaced from each other by a group interval, and a second set of N2 sensor groups positioned at a second end portion of the cable, the sensor groups of the second set being spaced from each other by the group interval; a sound source; wherein, when the system is in use, the survey vessel travels at a predetermined speed, towing the streamer and the sound source such that the sound source is positioned adjacent an intermediate portion of the cable between the first and second end portions of the cable; the sound source sends acoustic pulses at a predetermined period between pulses towards the seabed such that reflections are produced towards both the first set of sensor groups and the second set of sensor groups; and the speed of the survey vessel and the predetermined period of the sound source are selected such that the shot point interval of the sound source equals the group interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.