Blake ridge 3D
This small marine 3D is offshore South Carolina, US. It is available in OpendTect format on the dGB Open Seismic Repository under a Creative Commons (CC BY-SA) license: Blake Ridge 3D. It is available as PreSTM and PreSDM stacks. Blake Ridge is one of the best studied gas hydrate sites in the world.
The data are in OpendTect format, but can easily be exported from that tool into SEG Y format.