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Hydrocarbon exploration
and production have long
been a user and driver of
sophisticated numerical
algorithms and hardware.
Advances in algorithms and
processing play an essential
role in finding new resource.
As production in existing
fields peak, continued progress
in both exploration and
development is necessary
to provide additional resources.
As the cost of exploration
and production is high,
even incremental advances
in algorithms and computational
speed can pay for themselves
many times over.
In hydrocarbon exploration
advanced computation plays
an essential role in seismic
imaging, interpretation,
and modeling. Seismic imaging
is difficult in areas with
extreme lateral and vertical
variations in seismic wave
velocities. An example is
sub-salt imaging, which,
though challenging has resulted
in significant discoveries
in recent years. Currently,
most imaging algorithms
rely on compressional waves
(P) and use only part of
the amplitude information
to resolve sub-surface variations.
The next generation of algorithms
will likely use shear (S)
waves and converted phases
recorded from a wide variety
of acquisition geometries.
The ultimate goal is to
use all available information
from the seismic trace.
A second area of computational
challenges lies in modeling
and interpretation of the
processed images. The goal
of the interpretation is
to create a geologic model
and infer the presence of
hydrocarbons. Currently,
interpretation often requires
considerable human oversight.
It may be possible to automate
much of this process with
automated interpretation
and prospect generation.
Development and production
of hydrocarbons requires
detailed knowledge of reservoirs
and fluid/gas content. Resolution
of geological properties
is high near existing wells
but sparse elsewhere. Statistical
estimates guided by high-resolution
seismic are often used but
require multiples models
to assess possible errors.
Reservoir modeling requires
tracking of a multiple-component
system (e.g. water, oil,
and gas) through a complex
media. Typically, reservoir
models use a relatively
large cell size relative
to the existing geologic
knowledge due to computational
bottlenecks. Finer-grained
modeling may lead to more
accurate results but will
require considerable more
computational power.
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