US 12,066,584 B2
Fast power on method for marine acquisition streamer
Nicolas Fradin, Nantes (FR); and Xavier Brun, Nantes (FR)
Assigned to SERCEL, Carquefou (FR)
Filed by SERCEL, Carquefou (FR)
Filed on Jul. 26, 2022, as Appl. No. 17/873,244.
Application 17/873,244 is a division of application No. 16/590,699, filed on Oct. 2, 2019, granted, now 11,480,699.
Prior Publication US 2022/0357477 A1, Nov. 10, 2022
Int. Cl. H04L 12/437 (2006.01); G01S 13/00 (2006.01); G01V 1/20 (2006.01); G01V 1/22 (2006.01); G01V 1/38 (2006.01)
CPC G01V 1/38 (2013.01) [G01S 13/00 (2013.01); G01V 1/201 (2013.01); G01V 1/22 (2013.01); H04L 12/437 (2013.01); G01V 2200/14 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for bypassing a fault in a marine seismic streamer, which includes concentrators connecting consecutive segments housing seismic sensors, each concentrator having a first switch, SW1, along a first high-voltage rail, HV1, or along a second high-voltage rail, HV2, and a second switch, SW2, between the HV1 and the HV2, the HV1 and the HV2 extending along the segments and the concentrators of the marine seismic streamer, the method comprising:
detecting a fault related to delivery of a first high-voltage on the HV1 and/or a second high-voltage on the HV2 during an automatic voltage propagation procedure, the fault occurring between an ith concentrator and an (i+1) concentrator of the marine seismic streamer;
placing first to third software flags F1 to F3 at the ith concentrator, the (i+1)th concentrator, and an (i+2)th concentrator, respectively; and
restarting the automatic voltage propagation procedure along the marine seismic streamer, the automatic voltage propagation procedure bypassing the fault based on the first to third software flags,
wherein the first to third flags F1 to F3 are controlling a first local controller in a corresponding concentrator,
wherein the first to third flags F1 to F3 are generated by a second local controller in the corresponding concentrator, and
wherein the first controller and the second controller control the respective SW1 and SW2, and the second local controllers are slower to reboot than the first local controllers.