| WHAT
IS SEISMIC SEQUENCE STRATIGRAPHY? |
|
- Seismic
Sequence Stratigraphic analysis is a methodology that permits
a geologist and geophysicists to subdivide a stratigraphic section
into a series of time related 3rd Order Depositional Sequences.
- This is
accomplished by the integration of High Resolution
Biostratigraphic analysis, marker species, abundance and diversity
histograms, paleobathymetry and paleoenvironment correlated with
well log signatures and 2D/3D seismic profiles.
- Correlations
are made in time and are not lithologic correlations.
- Maps are
made based on Sequences, Sequence Boundaries or
Maximum Flooding Surfaces
|
| APPLICATIONS
OF SEISMIC SEQUENCE STRATIGRAPHY |
- Establish
a series of seismic sequence stratigraphic reference wells that
can be loop-tied on 2D/3D seismic for regional basinal analysis
- Reservoir
correlations in an oil and gas field within a sequence.
- Prediction
of ages and surfaces ahead of the drill bit.
- Predict
type of reservoir sands in different Systems Tracts in
different paleowater depth.
|
| SEISMIC
SEQUENCE STRATIGRAPHY WILL HELP YOU IN: |
- Identify
the 3rd Order Depositional Sequences and Systems Tracts that are
associated with the potential hydrocarbon reservoirs, source rocks
and seals.
- Determine
the play concepts for the reservoir section, coastal belt sands,
shingled turbidites sands, sheet sands, and channel overbank sands
(parallel to strike): incised valley fill sands and slope fan
channel sands, (perpendicular to strike) and basin floor fan sands
that form pancake shaped reservoirs.
- Predict
the geometry, continuity and distribution of the reservoir sands
both vertically and laterally.
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