Changes

==Tuning Effect==

==Tuning Effect==

In many cases the amplitude of the seismic waves cannot represent the subsurface conditions. This is due to the vertical resolution of the seismic data. The vertical resolution is referred tuning thickness that is distance of 2 pieces in a vertical objects which can be distinguished by seismic waves. At this thickness, seismic amplitude is the amplitude of the interference from many amplitude so that some subsurface geological uniqueness is lost. Tuning effects caused reservoir thickness can be at peak or trough depends on the interference that occurs <ref>Sukmono, S., and A. Agus, 2001, Karakterisasi Reservoir Seismik. Bandung: Lab. Geofisika Reservoir ITB. </ref>. ). Tuning thickness equation is

In many cases the amplitude of the seismic waves cannot represent the subsurface conditions. This is due to the vertical resolution of the seismic data. The vertical resolution is referred tuning thickness that is distance of 2 pieces in a vertical objects which can be distinguished by seismic waves. At this thickness, seismic amplitude is the amplitude of the interference from many amplitude so that some subsurface geological uniqueness is lost. Tuning effects caused reservoir thickness can be at peak or trough depends on the interference that occurs.<ref>Sukmono, S., and A. Agus, 2001, Karakterisasi Reservoir Seismik. Bandung: Lab. Geofisika Reservoir ITB. </ref> Tuning thickness equation is

:<math>\text{Tuning Thickness} = \frac{1}{4} \lambda</math>

:<math>\text{Tuning Thickness} = \frac{1}{4} \lambda</math>

::where λ = wavelength of wave

::where λ = wavelength of wave

[[File:Aapg 6.png|300px|thumbnail|center|figure 6 Interference under tuning thickness<ref>Posamentier, H. 2010. Patch Reefs in Seismic: http://seismicatlas.org/</ref>]]

[[File:Aapg 6.png|300px|thumbnail|center|figure 6 Interference under tuning thickness<ref>Posamentier, H., 2010, [http://seismicatlas.org/ Patch Reefs in Seismic]</ref>]]

==Factors That Influences Amplitude==

==Factors That Influences Amplitude==