LithoTect™ Restoration and Balancing
Overview
Current
Functionality
Geometry Reconstruction
Restoration and Balancing
Depth Conversion
For any given data constraints (field, well, seismic, remote sensing) virtually
an infinite number of 2D and/or 3D interpretations can be made (with pencil
and paper or the most advanced interpretation system), but the set of
physically possible interpretations are far more limited. The tests for
such physical plausibility derive from our knowledge of the processes
which control sediment deposition, structural evolution, and hydrocarbon
systems. Interpretations which can pass these tests may not be correct,
but they are more likely to be so, and can be labeled with that highly
sought appellation: Validated.
A validated interpretation is balanced, i.e., displays geometries analogous to observable structures and, if deformed by faulting and folding, can be restored to a geologically reasonable undeformed state. However, it must also be kinematically admissible, i.e., a geologically reasonable evolution of the structure can be demonstrated. Because restoration to an undeformed state is inherent in the validation definition, it should be an integral part of the interpretation process as well. Structural interpretation thus encompasses:
- Integrating
the full suite of available data constraints, including 2D/3D remote
sensing, field, seismic, and well logs/picks/production information.
- Constructing
validated interpretations from these data, using depth conversion, horizon
projection/interpolation and fault prediction algorithms, analytical
fault/fold/sedimentation forward modeling, and interactive restoration
with decompaction and isostatic adjustment. These construction techniques
are applicable to contractional, extensional, strike-slip, and salt
deformation regions, and include vertical/oblique slip, flexural slip,
slip line, and, within LithoTect™,
complex kinematic models.
- Generating the interpretational spectrum or range of possible interpretations consistent with the data constraints.
