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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: Breaking the Rules for Seismic Reservoir
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Criteria for the selection of reservoirs suitable for monitoring have been developed based on either theoretical principles or discussions around the water cooler.
In general, it is concluded that the optimum case for advanced
characterization and monitoring is for low-dip, low-velocity
strata
that have a low-modulus fluid moving during the production
process coupled with a high signal-to-noise ratio on the seismic
data. Given these assumptions there is a strong tendency for the
selection of reservoirs suitable for monitoring and advanced seismic
characterization to be clastics associated with high GOR oils,
or with gas movement on marine seismic data.
A more aggressive strategy using
multi-component acquisition,
alone or in combination with permanent installations, offers the
opportunity to break these rules and develop methods for reservoir
description extending across a wide range of traps in more
challenging signal-to-noise provinces. To accomplish this goal,
advancements are required in several areas:
Results from Geld experiments demonstrate that there are significant
developments suggesting that future surveys will capitalize
on improved coupling, multi-component analysis
, and new algorithms.
Combining multi-component recording with new acquisition
and processing concepts provides the opportunity to
improve both the characterization and monitoring of reservoirs
that are outside conventional wisdom for seismic work. New
results extend the concept of reservoir work to include fracture
mapping, detection of sand/shale ratios, and monitoring of non-gas
fluid movement.
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