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3D seismic attributes analysis in reservoir characterization: The Morrison Field, Clark County, Kansas


Seismic reservoir characterization and prospect evaluation based 3D seismic attributes analysis in Kansas has been successful in building static and dynamic reservoir models and in identifying commercial hydrocarbon prospects. In some areas, reservoir heterogeneities introduce challenges, resulting in some wells with poor economics. Analysis of seismic attributes gives insight into hydrocarbon presence, fluid movement, porosity, and other factors used in evaluating reservoir potential. This study evaluates a producing lease using seismic attributes analysis of an area covered by a 2010 3D seismic survey in the Morrison NE field of Clark County, KS. The target horizon was the Viola Limestone, which continues to produce in four of eight wells completed based off of the survey. In order to understand reservoir heterogeneities and its implications for future development plans, we conducted a seismic attributes extraction and analysis with emphasis on indications of amplitude anomalies around producing and plugged wells for comparison. Spectral decomposition was conducted in light of amplitude anomalies to gain insight into what seismic results led to the completion of the eight wells in the area. Further analysis was conducted to determine if the unsuccessful wells completed could have been avoided. Finally the study attempts to present a set of 3D seismic attributes associated with the successful wells, which will assist in placing new wells in other locations in the field.