--> Abstract: Incorporating seismic attribute variations into the pre-drillsite placement workflow; A case study from Ness County, Kansas, Mazin Abbas, #90097 (2009)
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Incorporating Previous HitseismicNext Hit attribute variations into the pre-drillsite placement workflow; A case study from Ness County, Kansas

Mazin Abbas1,  Abdelmoneam Raef *speaker2,   Matthew Totten3

1Kansas State University,  2Kansas State University,   3Kansas State University

The interpretation of 3D Previous HitseismicNext Hit surveys and integration with other geo-datasets has increased the success rate of many exploration and development programs around the world. Among key elements contributing to this success is the high Previous HitseismicNext Hit 3D resolution of structural and stratigraphic characterization of reservoirs in a wide range of geological settings. There are occasions when Previous HitseismicNext Hit interpretation of subsurface geology does not conform to the actual geology encountered in the drilled well. A case in point occurred during the drilling of several test wells based upon a 3D Previous HitseismicNext Hit survey in Ness County, Kansas, where the predicted Cherokee Sand did not meet the expectations. By better understanding the subsurface geologic features in the subject area, this study attempts to answer the question “what went wrong?” We explore the benefits of analyzing other Previous HitseismicNext Hit data information, such as differential spectral attenuation, that has not been integrated into the workflow of the pre-wildcat well placement.

Geologic and petrophysical analyses of four wells drilled within the survey boundaries were used to describe facies variations within the Cherokee Sandstone. These variations were tied to the Previous HitseismicNext Hit survey with synthetic seismograms constructed from sonic logs of each well. Correlations between Previous HitseismicNext Hit attributes and physical properties from the well data were used to define Previous HitseismicNext Hit facies. Identification of Previous HitseismicNext Hit lithofacies identified based on Previous HitseismicNext Hit attributes and differential attenuation analyses added useful insight into the integration of the Previous HitseismicTop lithfacies in future development plans.

AAPG Search and Discover Article #90097 © 2009 Tulsa Geological Society, Tulsa, Oklahoma

 

 

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