SEISMIC EXPLORATION IN DEEP OCEAN

According to the worldwide offshore oil gas resources, seismic exploration targeted (middle) deep layer is the major method for acquisition for the information of ocean environment, resources and country's sovereign There are many characteristics in targeted deep layer seismic survey because of the complexity of ocean structure This paper discussed the two key problems—seismic data acquisition and data processing. This paper described some key techniques on data acquisition and data processing in one component marine seismic exploration. Data acquisition includes source character, cable quality, high resolution wide dynamic range 24 bit digital seismometer, reasonable geometry parameters, and recorder factors etc. Seismic processing contains static correction, absorb compensation, multiple attenuation, multiple refraction elimination, and migration etc. The key techniques in data acquisition described in this paper are very hot in the world for marine seismic exploration. Developing seismic exploration in deep ocean may improve the comprehensive abilities for our country's marine oil gas exploration.