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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: Interpreting Complex Traps from
Seismic
Outcrops
Lithology, Porosity, and Fluids are Now Possible to Image with
Seismic![Next Hit](/data/images/arrow_right.gif)
![Previous Hit](/data/images/arrow_left.gif)
![Next Hit](/data/images/arrow_right.gif)
![Previous Hit](/data/images/arrow_left.gif)
![Next Hit](/data/images/arrow_right.gif)
By
eSeisInc.
Houston, Texas
"The present is the key to the past," was stated by Hutton over a century
ago. Today the present is focused on technology, specifically, the improved
image capabilities of seismic
data
. With the recent developments in "
Seismic
Petrophysics," it is now possible
to image lithology, porosity, and fluids on the
seismic
data
.
The ability to image lithology, porosity, and fluids allows us to
attack complex traps from a geological perspective. We can
switch gears from amplitudes, impedance, and reflectance to
actual geology. That means we are no longer looking at seismic
,
we are looking at "
seismic
outcrops." This allows us to do a more
detailed geologic
interpretation
. Trap settings become much
more apparent in the geologic domain than in the
seismic
domain. Also, the interpreter can concentrate on the specific
trapping mechanism, such as facies changes, porosity variation,
or an unconformity.
Several examples are reviewed illustrating geological solutions to complex trapping problems. These include porosity variations in a fluvial reservoir, lithologic variations in a nearshore marine sequence, and the identification of a gas-depleted zone.
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