Flat spot and Fluid
Contact analysis…Still experimental
The flat spot and fluid contact package is a
sequence of calculations designed to take normal Segy as input and then output
new volumes of flat spot or fluid contact indicators. This is a computationally intensive and
evolving process. It can be viewed as a
large “batch job” that has been fairly carefully parameterized. The codes are backed by 4
For a short technical discussion of
Experimental:
The
version of the code that is available as of 4/2009 is best viewed as
experimental in 2 areas.
·
Interpretation:
The whole science of interpreting flat spots
and fluid contact effects continues to evolve.
For this reason, scanning tools like these are still experimental and
are likely to stay that way for some time.
·
Default
settings: The settings for some of the defaults are
designed to allow lots of anomalies to be generated. The idea is to filter them out during
interpretation. You may find that you
need to run it a couple of times to get the anomaly count or type down to the
level that you want. For now at Quantum
Earth, the settings are being left more open, partly to monitor what the codes
are finding. This will help in further
filter and/or algorithm development.
Features of the code:
·
The Segy Header
Scanner comes with the package
·
Petrophysical input involves background and hydrocarbon reservoir
velocities as a function of time/depth
1.
2.
3.
DipStack volume
4.
DipStack volume with finish filtering
5.
Volume of dip
vectors, for later re-use, if necessary
Last
Updated: 4/25/2009