| Abstrak/Abstract |
Multichannel seismic reflection data processing of line 250 at the Coast of Southern
California has been done by using Echos®. The purpose of this research is to separate multiple
reflections from the primary reflection. Multiple reflections yield dramatic effect especially on
marine seismic survey. Multiple reflections in marine seismic data is the noise caused by
waves that trapped in a layer of sea water or rock layers. One of geophysics exploration
problem is removing multiple reflections from primary reflection. Multiple reflections often
destructively interfere with the primary reflection making interpretation difficult, so it’s needed
to get seismic section free from multiple reflections. There are some methods to attenuate the
multiple reflections, one of them is Hyperbolic Radon transform. Hyperbolic Radon transform
method works by transforming the data from time-offset domain into the Radon domain.
Primary reflection and multiple reflections can be separated into Radon domain. In the end of
this research, seismic section before and after multiple attenuation using hyperbolic Radon
transform were compared. Based on the result of processing, it can be concluded that
hyperbolic Radon transform is effective to attenuate multiple reflections at 0,24-1,25s TWT.
But, it can eliminate some of data and makes seismic section seen unclear |
