Research And Application Of Marine Broadband Processing Technology

As marine exploration acquisition and processing technology development,the goal of oil and gas resources exploration gradually transferred from the structure of the early reservoir to complex lithologic reservoir,concealed reservoir and the composite reservoir and unconventional reservoir,the reservoir is characterized by small scale,high complexity,geological target horizontal velocity changes dramatically.Low-frequency information is useful for imaging deep structures and for imaging the lower layers of the shield,which helps reduce the dependence of the inversion on well information.The author has long been engaged in Marine seismic data processing,combined with the mainstream broadband seismic acquisition methods,for broadband seismic data collection,analysis and research of various wave field and dynamic characteristics,to provide a broadband theoretical basis for Marine seismic data processing;According to the new characteristics of interference waves in broadband earthquakes,the corresponding processing methods and modules are studied.The characteristics of multiple wave propagation are studied by using the dynamic propagation theory of seismic waves and the elimination method is designed.The elimination of sea surface ghost reflection and the maintenance of the frequency band,etc.I have work as onboard seismic data processing for many years.Through the theoretical research and testing combined with research on the application of the actual work area 3d seismic data for high-resolution radon transform to ghost wave frequency domain,according to different depth of the ocean to multiple wave attenuation method,has formed the one whole set for Marine seismic spring to broadband,flat cable data processing method,and application in actual construction,achieved good effect,obtained the recognition of oil companies.