Optimization design of the broadband stereo gun array

YANG Chen; LIU Huaishan; ZHAO Mingxin; YANG Xilei; LI Fenglin; ZHANG Luocheng

doi:10.16028/j.1009-2722.2022.150

2023 Vol. 39, No. 10

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Article navigation > Marine Geology Frontiers > 2023 > 39(10): 85-92

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YANG Chen, LIU Huaishan, ZHAO Mingxin, YANG Xilei, LI Fenglin, ZHANG Luocheng. Optimization design of the broadband stereo gun array[J]. Marine Geology Frontiers, 2023, 39(10): 85-92. doi: 10.16028/j.1009-2722.2022.150

Citation:

YANG Chen, LIU Huaishan, ZHAO Mingxin, YANG Xilei, LI Fenglin, ZHANG Luocheng. Optimization design of the broadband stereo gun array[J]. Marine Geology Frontiers, 2023, 39(10): 85-92. doi: 10.16028/j.1009-2722.2022.150

Optimization design of the broadband stereo gun array

1.
College of Marine Geosciences, Ocean University of China, Qingdao 266100, China
2.
Key Laboratory of Submarine Geosciences and Prospecting Techniques, MOE, Ocean University of China, Qingdao 266100, China

More Information

Corresponding author: LIU Huaishan, lhs@ouc.edu.cn

Received Date: 11 May 2022

Publish Date: 28 October 2023

Abstract

Abstract

In offshore oil and gas exploration, seismic source design is the key to ensure good pickup of signals, for which air gun has become the most widely used excitation source in marine exploration due to its reliable quality, flexible combination, safety, and environmental protection. However, with the complexity of exploration environment, conventional excited wavelet of planar array is no longer to satisfy high-resolution exploration. Therefore, based on the stereoscopic array, we analyzed the relationship between wavelet signals and time of gas guns with different capacities. By optimizing the sinking depth, the amplitudes generated by the excitation of single gun with different capacities are superimposed in the same phase during receiving to broaden the frequency band and suppress the notch effect and improve the seismic source performance. By comparing the properties of the optimized stereoscopic array with the conventional array, it was proved that the broadband stereo air gun array had stronger amplitude energy and wider effective frequency band, which could suppress the notch effect obviously, and achieved better recognition results at complex geological targets.
- broadband /
- air gun source /
- stereoscopic array

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References

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