The Challenges of Acquiring 2D High Resolution Seismic Data in a Shallow Marine Environment

Summary Acquiring 2D high resolution multichannel seismic data in shallow marine environments presents challenges that do not occur within the deeper marine environments. Changing the source and streamer array configuration so that the near streamer groups are arranged in a cross-line configuration helps the recording of the highest possible frequencies. This is in conjunction with reducing the direct offset to a practical distance as possible. Overall these techniques will aim to improve the resolution in the top section of the seismic record. Other implications, such as removing undesirable bubble pulse energy recorded from airgun array and the careful creation of a suitable mute prior to stacking the seismic data must also be considered to visualise the data as best as possible for quality control purposes in the offshore environment.