Fault Interpretation Science: Developing
Structural
Interpretation Skills
Fault geometries are often complex, and the 3D relations
among multiple faults and offset stratigraphic horizons present interpretation
challenges. Good quality 3D seismic volumes can reveal much of the fault
framework, but details may remain obscure. Poor quality 3D, and 2D seismic,
present additional challenges. Ultimately, the skill of the interpreter
determines the efficiency and accuracy of the final product, and the confidence
of further analysis based on the structural
framework.
At ConocoPhillips, we have recognized the importance
of spatial cognitive skills and 3D thinking in the interpretation process.
Academic researchers have characterized fundamental spatial skills and
developed assessment methods; high skill levels generally correlate to
performance in many applied fields. Geoscience educators have applied spatial
skill science to student groups in basic and advanced geology, and developed
refined teaching methods that improve student success. Our structural
and
seismic interpretation training builds on these efforts by deliberately
discussing the role of spatial thinking, and includes components that target
and enhance applied spatial skills.
Our core interpreter training curriculum includes a
course that offers an integrated field and work station experience. Over a
week, participants develop 3D structural
geometric concepts and models while
walking through a
trap
-scale fault
system
, and each day re-interpret the same
structures in a synthetic seismic volume using standard industry software.
Woven into the experience are sessions on spatial cognitive skills and
interactive discussions about how participants perceive and visualize the 3D
geometries. Students evaluate both gross and detailed fault geometry and then
generate the same relations in the seismic framework.
Early results are very encouraging, and feedback from
participants indicates dramatic improvements in both visualization and
interpretation skills. Most importantly, all participants have succeeded in
generating high quality interpretation frameworks of a complex fault system
.
AAPG Search and Discovery Article #90142 © 2012 AAPG Annual Convention and Exhibition, April 22-25, 2012, Long Beach, California