To begin the submission process, we identified the field data, navigation, and ancillary data for the survey. We encountered a few challenges, such as the fact that the SEGD data was recorded using two sets of streamers, and the data was in a proprietary SEGD format that couldn’t be converted to the NDR-accepted SEGD rev 2.1 without modification to the reformatting software. Additionally, some of the available P1/90 data only had vessel positions recorded, and there were some missing SEGD and Nav data.
Although we explored the possibility of converting this data to Nav/merged SEGY, the available navigation wasn’t the source/receiver data needed to produce the Nav merge SEGY. We presented our findings and potential solutions to our client, and one option was to consider a set of Gather data for the survey. Upon analyzing the data, we found that the Gather data included navigation in the SEGY trace headers, and the dataset was complete. In this case, Nav merged SEGY was the only acceptable option for submission to the NDR.