海上三维资料处理中的几个关键技术问题

KEY PROBLEMS IN MARINE 3-D DATA PROCESSING

The marine 3-D seismic data processing is considered a key link in offshore exploration and development as well. In the coures of oil development, the technical competence in3-D data processing and quality of final presentation must be increased and improved for ensuring high resolution and high S/N which are supposed to be the MUST for reservoir studies . The stress of the paper is laid on how to solve the key problems come across in marine3-D data processing and its processed results.Problems peculiar to offshore 3-D survey, such as influence resulted from randomly-laidout fold coverage, the solution for it and its positive effect produced are. in the first place, expounded; next, to discuss the affect caused by spatial sampling and application of trace interpolation technique; and then what's brought out is the approach of and effect from developing 3-D migration velocity and migrated result from one-step approach; at last, the way how to enhance the resolution of the resulting data processing is examined and deliberated over.