Application of LAS files in a Reservoir Characterization study to investigate Geologic Sequestration and Enhanced Oil Recovery in the East Canton oil field, Ohio
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Publisher:The Ohio State University
Series/Report no.:The Ohio State University. School of Earth Sciences Senior Theses; 2008
With growing need for energy resources and mitigation of carbon dioxide emissions, there is increased interest in enhanced oil recovery (EOR) as a potential solution. Many oil fields with declining pressure and production still have the potential to produce millions of barrels of oil. Understanding oil-reservoir geology is important in determining how the formation will react to and sequester injected CO₂ as a method of EOR and mitigation. In this correlation study of reservoir stratigraphy within the producing interval of the East Canton field, geophysical wireline well logs and LAS file applications were used. This method allows for the gathering of large amounts of publically-available subsurface data to use in geologic interpretations. Many stratigraphic cross sections were created using LAS (Log ASCII Standard) applications; two representative cross sections are applied here. Through these cross sections, subtle and apparent changes in lithologic character, depositional environment, and continuity were observed for the producing interval, which is a series of complex sandstone lenses known as the “Clinton” sandstones. These cross sections and interpretations will add to an ongoing investigation by the Ohio Division of Geological Survey leading to the potential recovery of valuable energy resources along with the mitigation of an anthropogenic greenhouse gas.