New Advances in Marine Seismic Data Acquisition Technology and Enlightenment to Domestic Offshore Petroleum Seismic Exploration

In recent ten years,to meet the demand of accurate imaging of marine deep oil and gas,reflectors below shielded layer of high velocity and complex subsurface structures,marine seismic data acquisition technologies were reformed and perfected from the both aspects of airgun source,acquisition mode,then some new technical methods of seismic data acquisition technology were developed,such as tridimensional delayed excitation air-gun arrays,over/under streamer and circular seismic acquisition,which improving the low-frequency energy of seismic signal and effectively widening the band,by which we can effectively overcome the drawbacks of marine seismic exploration and improve of signal-to-noise ratio of the deep effective signal.This paper gives a brief introduction to the basic principle and application effect of new marine seismic data acquisition technologies and analyses exploration prospects of applying those technologies to domestic marine petroleum exploration based on tracing analysis in recent marine seismic data acquisition technologies,which offers a reference to domestic researchers engaged in marine petroleum seismic exploration.