Combination of multiple attenuation technique on the northern slope of the South China Sea
ZHANG Li1,2, WANG Xiao-Xue3, WEI Zhen-Quan1,2, SHUAI Qing-Wei1,2, QIAN Xing1,2
1. Key Laboratory of Marine Mineral Resources, MLR, Guangzhou 510075, China;
2. Guangzhou Marine Geological Survey, Guangzhou 510075, China;
3. College of Energy Resources, Chengdu University of Technology, Chengdu 610059, China
There is mostly rough deep sea bottom topography on the northern slope of the South China Sea.All types of multiples are well-developed.Identification and suppression of multiple have always been the emphasis and difficulty in the area's seismic data processing.The selection of a suitable method from multiple attenuation techniques is the key to obtaining high quality imaging of seismic profile.Through the study of multiple in original seismic data of three lines located on the northern slope of the South China Sea from the east to the west,the authors analyzed the characteristics of various types of multiple,applied τ-p domain deconvolution prediction,SRME(Surface Related Multiple Elimination),high-precision Radon transform and frequency versus energy decay method to effectively suppress various types of multiple,thus making improvement of the quality and effects of composition and clarifying characteristics of reflected waves in the middle and deep layer.As a result,the distinction and explanation become easy.
张莉, 王笑雪, 韦振权, 帅庆伟, 钱星. 南海北部陆坡区多次波组合压制技术[J]. 物探与化探, 2015, 39(5): 985-993.
ZHANG Li, WANG Xiao-Xue, WEI Zhen-Quan, SHUAI Qing-Wei, QIAN Xing. Combination of multiple attenuation technique on the northern slope of the South China Sea. Geophysical and Geochemical Exploration, 2015, 39(5): 985-993.
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