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Geodes Software
(Geological Dip Examination System)
Problem
Even great looking seismic can be misleading.
And seismic quality is often fair or poor in many prolific petroleum provices
(e.g., sub-salt, sub-volcanics, complex structure). Moreover, many important
structural features fall below the resolution of even modern, 3D seismic.
That's why you've spent a small fortune acquiring image logs and dip
logs, which provide direct, in-hole control on your structure. But what
happens away from the wellbore? Tadpole plots only indicate the dip at
the wellbore and image logs only show the inside of the wellbore. What's
worse, tadpole plots can be difficult (or impossible) to interpret; inaccurate;
or completely misleading.
Solution
With our Geodes software, now you can see what's
really down there! Geodes implements several innovative techniques in dipmeter
analysis, including SCAT , enabling you to analyze your dipmeter data quickly,
accurately, and completely. But that's not all. Geodes allows you to predict
structure away from your well by converting the results of your dipmeter
analyses to local structure sections and maps.
Features
. Identify and remove false data points (processing
artifacts) from machine-picked image logs and dip logs;
. Filter the data; and
. Identify domain boundaries (surfaces across which the structural axis
changes abruptly).
. For each domain:
o Determine the structural setting (planar or folded);
o Determine the strike and dip (planar domains) or trend
and plunge (folded domains);
o Generate plots of apparent dip vs. depth parallel
(Longitudinal or "L" Plot) and perpendicular (Transverse or "T" Plot)
to
strike or trend;
o Fit trend lines to the data on the T and L Plots;
o Pick important structural surfaces (crest, trough,
hinge, inflection, plunge-reversal) from the geometries of the T- and
L-Plot trend-lines;
o Pick potential unconformities and faults (including
those that are difficult or impossible to see on Tadpole Plots, seismic,
and log correlations); and
o Semi-automatically remove structural dip on a foot-by-foot
basis to examine the depositional dips.
. Convert the analysis of the dip data into local cross sections;
. From the local cross sections, compute local structure maps;
. Export the local structure maps to other mapping and modeling packages
so that all of the structural control extracted from the dip data by Geodes
can be incorporated in the maps and models generated with these other packages.
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