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| A processing method for high fidelity and wide frequency band seismic data collected by digital sensors |
| Chen Zhide, Guan Xin, Li ling, Zhang Jing |
| Exploration & Development Research Institute of Daqing Oilfield Company Ltd.,CNPC,Daqing,Heilongjiang 163712,China |
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Abstract Compared with seismic data collected by analog geophones,seismic data collected by digital sensors have an obvious priority,such as amplitude of high fidelity,rich high-frequency components.But they also have contaminated by serious noises.It is a valuable to find proper processing techniques for the seismic data collected by digital sensors to obtain high resolution images.In order to provide high quality images for oil development during high water cut stage,a 3D3C seismic survey was carried out in Lamadian area.Four kinds of data processing techniques have been developed,i.e.noise attenuating during different stages,data-driven amplitude recovery,phase correction and amplitude compensation guided by Q value before deconvolution,and surface-consistent spiking deconvolution.The results of sandstone identification by seismic data and drilling data have proved the advantages of the processing approaches of seismic data collected by digital sensors.The sandstone boundaries are clearly delineated.
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Received: 07 December 2010
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2012, Vol. 47 
