Seismic imaging analysis of submerged carbonate platforms in the South China Sea:a case study of the Ganquan platform
The submerged carbonate platforms in the South China Sea are characterized by signifi-cant variations in water depth and a rugged seafloor.These factors create a complex subsurface structure and result in multiple wave interferences in two-dimensional(2D)seismic reflection data.Additionally,the data are often affected by environmental conditions,leading to noise inter-ference and large amplitude interference.These challenges pose difficulties for accurate high-resolution imaging.The Ganquan platform was taken as an example of a typical submerged car-bonate platform in the northern South China Sea.The characteristics of the latest collected data for the Ganquan platform were analyzed in this work.The noise,large-amplitude,and multiple wave interferences were removed using low-cut filtering to suppress strong swell noise,anoma-lous amplitude attenuation,and multistep serial multiple wave suppression technique.The reso-lution and signal-to-noise ratio of the Ganquan platform seismic profile were greatly improved in this work.These advancements can serve as a valuable reference for the subsequent processing of 2D seismic data from submerged carbonate platforms in the South China Sea.
万方数据
