The key technique application research on low frequency vibrator "two-wide and one-high" seismic data processing in Jiandingshan area of Qaidam Basin
Jin-Zhong ZHOU1, Jin-Hai ZHANG2, Quan-Bing NIU1, Hui-Yu ZHANG1, Hai-Feng WANG1, Bo ZHU1, Li LI1, Si YIN1, Na WANG1
1. Qinghai Oilfield Company Exploration and Development Research Institute of PetroChina,Dunhuang 736202,China 2. Production Logging Center of China Petroleum Logging Co. Ltd.,Xi'an 710200,China
In order to finely implement the characteristics of the Jianbei structure and fault system,explore the spatial distribution law of Jurassic strata,improve the imaging accuracy of breakpoints and sections,and implement the distribution of small faults and concealed faults so as to provide strong support for bedrock lithologic traps,the authors used high-precision seismic exploration technology with low-frequency vibrator "two widths and one high" (wide azimuth,wide band,high density) in this area.This technology can record wave field information more completely,with low frequency information and less space and false noise.It is conducive to the study of broadband processing and azimuthal anisotropy of thin interbedded reservoirs.In this paper,from the aspects of wave field characteristics,signal-to-noise ratio and frequency of the region,the authors used the low-frequency vibrator "two widths and one high" wide-band,wide-azimuth high-resolution amplitude-preserving processing technology to image small faults and bedrocks.The fine characterization shows that the "two widths and one height" method has unique advantages in wideband and wide-range data processing.
周锦钟, 张金海, 牛全兵, 张惠瑜, 王海峰, 朱波, 李丽, 尹思, 王娜. 柴达木盆地尖顶山地区低频可控震源“两宽一高”地震资料处理关键技术应用研究[J]. 物探与化探, 2020, 44(2): 313-320.
Jin-Zhong ZHOU, Jin-Hai ZHANG, Quan-Bing NIU, Hui-Yu ZHANG, Hai-Feng WANG, Bo ZHU, Li LI, Si YIN, Na WANG. The key technique application research on low frequency vibrator "two-wide and one-high" seismic data processing in Jiandingshan area of Qaidam Basin. Geophysical and Geochemical Exploration, 2020, 44(2): 313-320.
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