ANALYSIS OF THE EFFECTS OF WIDE-AZIMUTH AND DOUBLE-AZIMUTH FOR MARINE STREAMER

ZHANG Zhenbo; LUO Wei

doi:10.16028/j.1009-2722.2020.037

2021 Vol. 37, No. 3

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Article navigation > Marine Geology Frontiers > 2021 > 37(3): 66-73

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ZHANG Zhenbo, LUO Wei. ANALYSIS OF THE EFFECTS OF WIDE-AZIMUTH AND DOUBLE-AZIMUTH FOR MARINE STREAMER[J]. Marine Geology Frontiers, 2021, 37(3): 66-73. doi: 10.16028/j.1009-2722.2020.037

Citation:

ZHANG Zhenbo, LUO Wei. ANALYSIS OF THE EFFECTS OF WIDE-AZIMUTH AND DOUBLE-AZIMUTH FOR MARINE STREAMER[J]. Marine Geology Frontiers, 2021, 37(3): 66-73. doi: 10.16028/j.1009-2722.2020.037

ANALYSIS OF THE EFFECTS OF WIDE-AZIMUTH AND DOUBLE-AZIMUTH FOR MARINE STREAMER

ZHANG Zhenbo,
LUO Wei^,

Shenzhen Branch of CNOOC (China) Ltd., Shenzhen 518067, China

More Information

Corresponding author: LUO Wei, luowei_1101@126.com

Received Date: 16 April 2020

Publish Date: 28 March 2021

Abstract

Abstract

In order to improve the middle and deep seismic imaging in the Panyu 4 Depression of the Pearl River Mouth Basin, the wide azimuth seismic exploration test by twin-boat towline was carried out, and 1 680 folds of full coverage seismic data acquired. According to an azimuth width of 15 degrees, 24 azimuth volumes are created and processed, and the data of different azimuth widths and orthogonal dual azimuth data are superimposed respectively. The results of different azimuth widths and different folds are collected and analyzed. It is concluded that the seismic imaging effect is significantly improved with the increase in azimuth width and folds; under the same folds, the dominant imaging azimuth imaging effect is better; and the imaging effect of orthogonal dual azimuth is between the two directions, which has no advantage with the imaging effect of dominant imaging azimuth. Therefore, the most effective way to improve the effect of middle and deep seismic imaging is to increase the number of folds in target dominant imaging azimuth.
- seismic geometry /
- fold /
- wide-azimuth /
- orthogonal dual azimuth

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References

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