Case History – St. Peter and Mt. Simon Sandstones, Illinois Basin
Alan P. Byrnes, Michael D. Wilson, 1994. "Case History – St. Peter and Mt. Simon Sandstones, Illinois Basin", Reservoir Quality Assessment and Prediction in Clastic Rocks, Michael D. Wilson
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The St. Peter Sandstone and parts of the Mt. Simon Sandstone in the Illinois basin provide an ideal "laboratory" for investigating the role that time-temperature and compositional variables play in reservoir property modification in old (Cambrian-Ordovician) quartzose sandstones which have undergone only moderate burial. A total of 140 samples (107 St. Peter and 33 Mt. Simon) from 18 wells were analyzed. The wells are distributed uniformly across the basin and represent nearly the complete depth range (surface to 2,600 m, 8,500 ft) over which these formations occur. This chapter reviews work previously presented in abbreviated form (Byrnes and Wilson, 1992, 1994).
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Reservoir Quality Assessment and Prediction in Clastic Rocks
This course is designed to emphasize the following topics: (1) Historical perspective on previous and current empirical, and geochemical methods of reservoir quality prediction; (2) Overview of diagenetic processes which significantly impact reservoir quality and those factors which act as major controls on those processes; (3) Proper design of a comprehensive or limited-focus predictive analysis of reservoir quality; (4) Methodologies for the accurate measurement of all major dependent and independent variables; (5) Data analysis techniques involved in quality control and the assessment of variability prior to performing multivariate regression; (6) Steps involved in the generation of a multivariate regression to insure that the model developed provides maximum accuracy using a minimum number of independent variables; (7) Case histories from a variety of settings illustrating application of the recommended approach to reservoir quality prediction.