| Prior
to the advent of 3-D Seismic Technology, most geological interpretations
of subsurface oil and gas bearing formations were based on inferences
drawn from measurements of the contours of the earth's surface from
sea level (relief maps), logs from adjacent wells and 2-D subsurface
data. As a result of advancements in 3-D technology, seismologists
can locate and define potential oil and gas bearing subsurface structures
and traps using a combination of sonar techniques and computer enhancements.
Additionally, 4-D Seismic Technology can define the exact dimensions
of certain oil and gas bearing formations and the extent of reservoir
depletion, which provides the operator with data that is essential
in the planning of many Reentry Horizontal Drilling projects.
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| Three-dimensional
and 4-D Seismic Technology are the most advanced methods for
pinpointing oil and natural gas. |
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