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CANON AIR [1 record]
Record 1 - internal organization data 2001-05-28
Record 1, English
Record 1, Subject field(s)
- Seismic Prospecting
- Geophysics
- Research and Development (Petroleum Tech.)
Record 1, Main entry term, English
- air gun
1, record 1, English, air%20gun
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
An energy source extensively used in marine seismic surveys. Air under high pressure is abruptly released into the water to generate a seismic wave. 2, record 1, English, - air%20gun
Record number: 1, Textual support number: 1 OBS
As the gun is trailed behind a boat, air is released, making a low-frequency popping noise, which penetrates the subsurface rock layers and is reflected by the layers. Sensitive hydrophones receive the reflections and transmit them to recording equipment on the boat. 3, record 1, English, - air%20gun
Record number: 1, Textual support number: 2 OBS
Air guns have also been adapted for lowering in a borehole or pushed down into the marsh ... Air guns are also used in small tanks of water which are set on the surface of the ground as a seismic source on land. 4, record 1, English, - air%20gun
Record 1, French
Record 1, Domaine(s)
- Prospection sismique
- Géophysique
- Recherche et développement (Technol. pétrol.)
Record 1, Main entry term, French
- canon à air
1, record 1, French, canon%20%C3%A0%20air
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Source d'ondes acoustiques utilisé en sismique marine. 2, record 1, French, - canon%20%C3%A0%20air
Record number: 1, Textual support number: 1 CONT
Un navire de prospection pétrolière est équipé d'instruments [...] dont le canon à air, ou autre source d'ébranlement pour la sismique, immergé à l'arrière. 3, record 1, French, - canon%20%C3%A0%20air
Record number: 1, Textual support number: 2 CONT
Dans le canon à air le train d'ondes est obtenu par libération brutale de l'air comprimé dans l'eau [...] 2, record 1, French, - canon%20%C3%A0%20air
Record number: 1, Textual support number: 3 CONT
Le canon à air [...] utilise la détente brutale d'air comprimé sous une pression de 150 bar. 4, record 1, French, - canon%20%C3%A0%20air
Record number: 1, Textual support number: 1 OBS
[...] un des appareils les plus employés [...] Un volume d'air de l'ordre de 1,5 décilitre, fortement comprimé, est brutalement libéré dans l'eau et ce sont les oscillations de la bulle ainsi créée qui produisent le signal acoustique, la fréquence de résonance dépendant du volume de gaz, de sa pression initiale et de la profondeur d'immersion du canon. 5, record 1, French, - canon%20%C3%A0%20air
Record 1, Key term(s)
- canon pneumatique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Prospección sísmica
- Geofísica
- Investigación y desarrollo (Tecnología petrolera)
Record 1, Main entry term, Spanish
- cañón de aire
1, record 1, Spanish, ca%C3%B1%C3%B3n%20de%20aire
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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