Mississippi Canyon Structural Model
DiscussionThis example illustrates how StructureSolver analysis can create value when analyzing large extensional growth faults, such as those found in the Gulf of Mexico and other passive continental margins. In such systems, the fault traces themselves may be well imaged using modern seismic data. Stratigraphic correlations may be well established from well control in the shallow section but unknown in the deeper section. Such systems often have very large displacements and interpreters quite often underestimate the amount of growth in the deep section.
In this example, StructureSolver is used to confirm the upper level stratigraphic correlations and to confirm and refine the fault shape. The combination of convex and concave curvatures on the fault provides significant geometric constraints. After this is done, a good estimate of the deeper stratigraphic correlations is readily obtained.
In some sections we have studied, there was very early salt movement in the core of the extensional growth structure. In such cases, careful analysis of discrepancies between the deep modeled and observed geometries can help you estimate the amount and timing of salt movement.
Step-by-step Sequence of Analysis