ABSTRACT: The combined use of visualization and multiple seismic attributes for cycle time reduction and risk minimization
Green, W. Verney1, Bill S. Kowalik1,
and Kenneth D.
Kelsch2
(1) Chevron Petroleum Technology Company, San Ramon, CA
(2) PT Caltex Pacific Indonesia, Pekanbaru,
Indonesia
The size of a large seismic survey has increased from several hundred megabytes a few
years ago to tens of gigabytes today. Many interpreters now are expected to make better
interpretations on these huge data volumes in less time. Although seismic attributes have
been available for many years, it is now common for an interpreter to have many different
volumes for a single survey area. These can include near, mid, and far offset stacks
, AVO
products, inversion products, phase, dip, azimuth, velocity,
coherency
, 4D, and multiple
component cubes.
Visualization technology is the best way to actually look at all these data. The flexibility of interactive color and opacity editing allows the interpreter to quickly evaluate depositional patterns, structural framework, and connectivity relationships.
However visualization alone is not enough. Semi-automated methods of highlighting
regions based on criteria from multiple attributes will become increasingly important.
Additionally, interactive attribute
calculation and volume mathematics will help reduce
cycle time and help reduce risks. Examples from Caltex-operated regions in Sumatra will be
given.
AAPG Search and Discovery Article #90913©2000 AAPG International Conference and Exhibition, Bali, Indonesia