DedicationI dedicate this thesis to my husband and very best friend, Bradley Cook, who has been a constant source of love, support, and encouragement throughout the pursuit of my Master's degree and always.iv
Aberrancy measures the lateral change (or gradient) of curvature along a picked or inferred surface. Aberrancy is complementary to curvature and coherence. In normally faulted terrains, the aberrancy anomaly will track the coherence anomaly and fall between the most-negative curvature anomalies defining the footwall and the mostnegative curvature anomalies defining the hanging wall. Aberrancy can delineate faults whose throw falls below seismic resolution, or is distributed across a suite of smaller conjugate faults, which do not exhibit a coherence anomaly. For this reason, we hypothesize that aberrancy will be quite useful in correlating surface seismic data to fractures associated with faults that are commonly seen in image logs from horizontal wells. This study explores if a correlation can be found between aberrancy and fracture measured using image logs. If such a correlation exists, we will be able to use volumetric aberrancy as a statistically validated proxy to predict fractures in undrilled parts of the survy. The seismic survey of this study is located in the Anadarko Shelf of Northern Oklahoma. Aberrancy and other seismic attributes that may be indirectly related to the depositional and tectonic history are extracted along the wellbores in the depth domain. Seismic estimates of mechanical parameters are derived from seismic inversion. We will show the results of several correlation techniques such as lasso regression.
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