US 11,852,763 B2
Method and device for reducing bucking of pneumatic seismic sources
Joshua M. Ronen, Orinda, CA (US)
Assigned to SERCEL INC., Houston, TX (US)
Filed by SERCEL, INC., Houston, TX (US)
Filed on Sep. 16, 2021, as Appl. No. 17/476,850.
Claims priority of provisional application 63/116,739, filed on Nov. 20, 2020.
Prior Publication US 2022/0163688 A1, May 26, 2022
Int. Cl. G01V 1/137 (2006.01); G01V 1/38 (2006.01); G01V 1/387 (2006.01)
CPC G01V 1/137 (2013.01) [G01V 1/387 (2013.01); G01V 1/3843 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An air gun for generating seismic waves in a marine environment, the air gun comprising:
a cylindrical body configured to hold compressed air and having plural air ports for releasing the compressed air from inside the cylindrical body, the cylindrical body extending along a longitudinal axis X; and
an extension member attached externally to the body and extending along a radial axis R, which is perpendicular to the longitudinal axis X,
wherein a depth of the extension member is selected based on a diameter of the body and a towing depth of the air gun so that the extension member promotes ambient water flowing inside an air bubble generated when the compressed air is released outside the body, to reduce bucking.