CGG has been granted a patent for a method that automatically propagates voltage along a marine seismic streamer. The method detects faults in high-voltage delivery and utilizes software flags to bypass these faults, ensuring continuous operation of the seismic sensors connected by concentrators. GlobalData’s report on CGG gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on CGG, Marine seismic data acquisition was a key innovation area identified from patents. CGG's grant share as of July 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Method for bypassing faults in marine seismic streamers
The patent US12066584B2 outlines a method for bypassing faults in marine seismic streamers, which are essential for underwater geological surveys. The method involves a series of concentrators that connect segments housing seismic sensors, each equipped with two switches (SW1 and SW2) and high-voltage rails (HV1 and HV2). When a fault is detected in the delivery of high-voltage signals during an automatic voltage propagation procedure, the system places software flags (F1 to F3) at the affected concentrators. These flags control local controllers that manage the switches, allowing the system to bypass the fault and continue voltage propagation along the streamer.
The method specifies that the first flag (F1) forces the local controller of the ith concentrator to open SW1, interrupting HV1, while the second flag (F2) prompts the (i+1)th concentrator to close SW1, enabling the second high-voltage to propagate through HV2. The third flag (F3) directs the (i+2)th concentrator's second local controller to close SW2, connecting HV1 to HV2. The automatic voltage propagation procedure is designed to detect faults based on timing discrepancies in voltage delivery, with a predetermined delay time of approximately 20 milliseconds. The entire process is efficient, taking less than 30 seconds to execute, ensuring minimal disruption in seismic data collection.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
