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USGS CMG InfoBank: Subsurface Depth Map

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Comment: 06:15 - 07:00 (00:45)
Source: Annenberg/CPB Resources - Earth Revealed 26. Living With Earth, Part II
Keywords: "Stephen Scott", seismogram, oil, "rock formation", subsurface, structure, hydrocarbon, drilling, reservoir, mapping

Our transcription: Several seismograms are combined to produce maps showing the depths to oil-bearing formations.
Now that subsurface depth map would portray a structure in the subsurface, and that would be much like a topographic map portrays a mountain or structure on the surface of the Earth.
So once we've done that, if we ascertain that there's a structure or a trap down there that has the capacity to hold hydrocarbons, and all the other things fit into the picture with respect to source, migration, timeliness and reservoir rock, then we would make a determination of whether or not that prospect was economic.
If it was economic, and we were able to get the land, then we would possibly drill a well and hopefully have a large discovery.

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