Integrated navigation and positioning data processing in offshore multi-sources and multi-streamers seismic survey
Cnooc Lt · 2013
At present,the offshore 3Dseismic survey is mainly operated by towing multi-streamers.One key factors for guaranteeing the quality of seismic data is the high-precision positioning of vessel,source,streamer,etc.The configuration and quality evaluation standard of integrated navigation and positioning network in multisources and multi-streamers seismic survey are introduced.A workflow of real-time integrated navigation and positioning data processing and quality control is concluded according to the work experience.The key techniques and rules of navigation and positioning data preprocessing,network adjustment are described.Furthermore,the application of real-time intergrated navigation data processing on auditing of positioning parameters and trouble analysis of the underwater equipment are discussed.