Seismic Interpretation
Our company provides a wide range service of interpretation solutions. It includes: structural interpretation, stratigraphic interpretation, seismic attribute analysis, seismic facies analysis, quantitative seismic interpretation (AVO/ AVAZ/VVAZ inversion and analysis).
Seismic structural interpretation. Seismic structural interpretation involves highlighting and extracting faults and horizons that are apparent as geometric features in a seismic image. Faults and horizons are the most important structural mappings that can be extracted from a 3D seismic image. In a seismic image, interpreters laterally track geologically consistent reflections to extract horizons while identifying reflection discontinuities to pick faults.
Seismic stratigraphy is the interpretation of the stratigraphy of rocks based on seismic data. Seismic stratigraphy methods are used to correlate strata in depth, as well as to identify unconformity-limited seismic sequences, which reveals opportunities for analyzing the geological history of the region. Seismic stratigraphy interpretation includes procedures for analyzing sequences, facies, and deposit accumulation systems, as well as lithology prediction.
Seismic attribute analysis. A seismic attribute is a quantitative measure of a seismic parameter of interest obtained by measurement or calculation.
Seismic attributes provide information about the amplitude, shape, and position of a seismic wave. The use of attribute analysis techniques improves the quality of geological and geophysical interpretation of seismic data, as well as the characteristics of reservoirs, especially in a thin-layered reservoir environment.
Quantitative seismic interpretation (AVO/AVAZ/VVAZ inversion and analysis). The final goal of a quantitative seismic interpretation is to predict reservoir properties such as lithology, rock type, porosity, and fluid fill from seismic data. Central components of a quantitative seismic interpretation are AVO/AVAZ/VVAZ inversion and analysis.
Seismic anisotropic parameters play an important role in unconventional shale or fractured reservoirs characterization. According to seismic response to anisotropic signatures, two types of azimuthal analysis methods are applied - velocity variation with azimuth (VVAZ) from seismic offset gathers and amplitude variation with azimuth (AVAZ) from seismic azimuth gathers.