This tutorial will guide you through the process of exporting 3D Web Scenes with seismic data and other subsurface data. The tutorial assumes that you already have already read the seismic data.
Extracting seismic lines and seismic section
Converting seismic to multipatch
Creating an ArcScene 3D subsurface model
Exporting 3D subsurface model to 3D Web Scene
Uploading 3D Web Scene to ArcGIS Online
Viewing 3D Web Scene in ArcGIS Online