Seismic Interpretation

Definition - What does Seismic Interpretation mean?

Seismic Interpretation is the understanding of the subsurface geological formations from seismic data which is collected during the extraction process. The drilling team can also use the seismic data to interpret the structural models beneath the earth's surface. The following are some of the seismic attributes that are generally used in the interpretation:

  • Amplitude
  • Frequency
  • Phase

Seismic interpretation may also be known as seismic modeling, seismic survey and seismic analysis.

Petropedia explains Seismic Interpretation

During Seismic Interpretation the Instantaneous Amplitude attribute is used to serve as a primary diagnostic tool. Instantaneous amplitude relates to reflectivity which in turn relates to impedance contrasts on the subsurface. Thus the amplitude attribute of the Seismic Interpretation provides information such as types of rocks and their wave patterns, fluid accumulations and formation pressure conditions.

Similarly Instantaneous Phase attribute during Seismic Interpretation is helpful in reflection continuity tracking and knowing strata surfaces where the amplitude is low and is not able to produce any waveform character. However, this attribute of Seismic Interpretation is rarely used.

The Instantaneous frequency attribute of Seismic Interpretation helps in interpreting thickness and bed spacing.

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