Research progress of multi-azimuth acquisition and imaging technology of wide-tow multi-sources dual-sensor streamer

ZHANG Dong; SUN Zhilei; ZHANG Xilin; WU Nengyou; LUO Di; GENG Wei; XU Cuiling; CAO Hong

doi:10.16562/j.cnki.0256-1492.2021110801

2022 Vol. 42, No. 4

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Article navigation > Marine Geology & Quaternary Geology > 2022 > 42(4): 194-206

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ZHANG Dong, SUN Zhilei, ZHANG Xilin, WU Nengyou, LUO Di, GENG Wei, XU Cuiling, CAO Hong. Research progress of multi-azimuth acquisition and imaging technology of wide-tow multi-sources dual-sensor streamer[J]. Marine Geology & Quaternary Geology, 2022, 42(4): 194-206. doi: 10.16562/j.cnki.0256-1492.2021110801

Citation:

ZHANG Dong, SUN Zhilei, ZHANG Xilin, WU Nengyou, LUO Di, GENG Wei, XU Cuiling, CAO Hong. Research progress of multi-azimuth acquisition and imaging technology of wide-tow multi-sources dual-sensor streamer[J]. Marine Geology & Quaternary Geology, 2022, 42(4): 194-206. doi: 10.16562/j.cnki.0256-1492.2021110801

Research progress of multi-azimuth acquisition and imaging technology of wide-tow multi-sources dual-sensor streamer

1.
Key Laboratory of Gas Hydrate, Qingdao Institute of Marine Geology, Ministry of Natural Resources, Qingdao 266237, China
2.
Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China

More Information

Corresponding author: SUN Zhilei, zhileisun@yeah.net

Received Date: 08 November 2021

Revised Date: 20 March 2022

Accepted Date: 20 March 2022

Publish Date: 28 August 2022

Abstract

Abstract

Wide-tow multi-sources dual-sensor streamer multi-azimuth acquisition and imaging technology has been successfully introduced into commercial seismic exploration projects. It improves the resolution of near-bottom strata and deep seismic images. This paper details this novel acquisition and imaging technique. This paper summarizes its application effect in the identification of near-seabed strata and deep target geological bodies in the North Sea, offshore Malaysia, the Barents Sea and other sea areas. The acquisition solution innovatively combines dual-sensor streamers, wide-tow multi-sources, and different length streamer arrangements with the new multi-azimuth acquisition. The Complete wavefield imaging combines reflection tomography, full waveform inversion (FWI), and separated wavefield imaging (SWIM). Its advantages mainly include: (1) Significantly weaken the influence of rough sea surface reflection and broaden the seismic frequency band. (2) Improve the signal-to-noise ratio, spatial sampling density, acquisition efficiency and velocity model accuracy. (3) Realize near offset uniform coverage and cost-effective multi-azimuth lighting. It can perform high-resolution imaging of near-seabed formations and deep geological targets, especially in shallow marine environmental conditions. It provides a cost-effective solution for imaging geological bodies at different depths.
- wide-tow multi-sources /
- dual-sensor /
- near offset /
- complete wavefield imaging /
- high-resolution

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References

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