Geoscience Reference
In-Depth Information
appraisal and development. Once exploration targets have been identified there may be
a wish for a detailed geophysical analysis of the prospective levels. Techniques such as
AVO analysis, seismic inversion and amplitude analysis (see later chapters) all impose
special requirements on the quality of the seismic data that may not be met by the initial
processing for exploration screening.
In some areas with severe problems (e.g. sub-basalt or beneath complex salt bod-
ies), where the primary signal is strongly attenuated or scattered, it may be difficult
or impossible to generate interpretable sections with current technology. The desire
for better seismic sections remains strong and there is active research in most as-
pects of seismic data acquisition and processing. However, the industry should be
proud of the improvements made in seismic technology over the past two decades.
Data quality has improved tremendously and with it our ability to see hydrocarbons at
depth.
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