Figure 2: Structural Smoothing of Seismic Cross Section at Crossline 1676 with Default Setting: Plain, Dip Guided, Dip Guided with Edge Enhancement.
Figure above shows the comparison of the seismic data before and after applying structural smoothing. Before the structural smoothing attribute, the fault is visible but the whole data is chaotic. However after the structural smoothing attribute, the whole data is less chaotic and the fault become more visible. This shows that structural smoothing is useful in highlighting the structure present in the data by removing the noises and anomalies. There is also the aid of 3D Gaussian filter in structural smoothing.
The structural smoothing attribute can be displayed under three parameters which are plain, dip guided and dip guided with edge enhancement.
Structural Smoothing
From the figures above, there are very slight differences that can be seen in the plain, dip guided and dip guided with edge enhancement parameters at the same sigma X, Y and Z values which is 1.5. The black circles are the most obvious differences that can be seen after the three parameters of structural smoothing are applied. The dip guided and dip guided with edge enhancement parameters show better horizontal and vertical resolution compared to the plain parameter. The red circles show the bright spots that are present in Crossline 1676 which has better resolution.
Figure 1: Comparison of Seismic Cross Section at Crossline 1676 between Original Seismic Data and Structural Smoothing.
