Seismic Modeling of the Rose Run Formation, Eastern Ohio

ROTH, BRYAN L., Wright State University, Dayton, OH

The Rose Run Formation, holding significant proven oil and gas reserves, recently has become the focus of exploration activity in eastern Ohio. Subtle Rose Run traps have developed within a number of stratigraphic sequences as well as several trapping mechanisms, including structural, stratigraphic, and paleogeomorphic traps. Seismic reflection is the principal exploration tool for finding these reservoirs; however, difficulties in seismically defining them both horizontally and vertically from surrounding stratigraphy have complicated seismic interpretations of this play. The prominent complexity involves interpreting a substratum sequence from a seismic signature. Using two-dimensional seismic modeling techniques, this problem is addressed by developing a number of realistic velocit -depth models (geologic models) and propagating seismic waves through them, thus creating time sections. These time sections, or seismic models, ideally represent how a substratum sequence may appear within real seismic sections. White noise is added to induce more realistic models. Due to the depth and thickness of beds of interest, a maximum achievable resolving power still limits discreet bed interpretations. However, analyzing wavelet shapes, as modified by constructive and destructive wavelet processes, can further advance detailed seismic interpretations relating to these subtle features. Models generated in this research can greatly improve seismic interpretations of the Rose Run play through a better understanding of its detailed seismic expressions.

AAPG Search and Discovery Article #91005 © 1991 Eastern Section Meeting, Pittsburgh, Pennsylvania, September 8-10, 1991 (2009)