Reflected seismic waves bear high-resolutional information about geology and rock properties of the sub-surface. Reflection seismic, thus, is the dominant method used for finding oil- and gas reservoirs. The method involves exploring the subsurface by means of acoustic waves that are excited by a large number of artificial sources at the surface.
Seismic Data Processing
The method of reflection seismic allows to gain insight to the structure of the Earth's subsurface by recording seismic waves that are reflected from contrasts of rock property in the subsurface. It is, in particular, possible to identify oil- and gas reservoirs so that the method has been used for several decades for the purpose of finding hydrocarbons.
Most of the easily detectable and accessible reservoirs have already been exploited. Further reservoirs are, thus, expected to be located in more complicated and deeper structures which results in higher requirements to accuracy and efficinecy of the seismic data processing.