Abstract
As temperatures rise and climate change becomes an increasingly important issue, geologic carbon dioxide (CO2) sequestration is a viable solution for reducing greenhouse gas emissions. Subsurface 3-D modeling and groundwater flow modeling were completed as a component of a CO2 sequestration feasibility study in the city of Decatur, Illinois. The Decatur Archer Daniels Midland Company Ethanol Plant (ADM) serves as the injection site for a CO2 sequestration project within a deep saline reservoir. Petrel was successfully used to model the glacial deposits in the area. The 3-D geologic model shows the Peoria Silt, Wedron Formation, and Cahokia Formation at the surface with the Wedron Formation holding up the steep slopes along the east and west banks of Lake Decatur. The groundwater flow model outlined the location of a local groundwater divide and showed flow from the injection site would flow towards Lake Decatur, reaching the lake in 80 days.
Highlights
Many feasibility and sustainability studies have been conducted to test the concept of carbon dioxide (CO2) sequestration
We addressed two main questions: 1) what is the structure and stratigraphy of the shallow geologic units in Decatur area surrounding the Archer Daniels Midland Company (ADM) site? and 2) what are the characteristics of groundwater flow locally in the Decatur area?
The Quaternary units had to be simplified in order for the Petrel modeling process to work
Summary
Many feasibility and sustainability studies have been conducted to test the concept of carbon dioxide (CO2) sequestration. The Weyburn Project in Canada [1] [2], the Sleipner Field in the North Sea [3] [4], the deep saline storage partnership among the Midwest Geological Sequestration Consortium (MGSC), Archer Daniels Midland Company (ADM) and Schlumberger Carbon Services in Decatur, Illinois [5] are examples of large-scale se-. The Weyburn Project transports CO2 from the Dakota Gasification Company in North Dakota along a 330 kilometers (km) [206 miles (mi)] pipeline to an oil and gas field in southeast Saskatchewan, Canada [6]. The CO2 is injected in an oil field in Canada for enhanced oil recovery purposes and to be sequestered in the subsurface. The Weyburn Project started injecting 5000 tons of CO2 per day in 2000 resulting in a total of 7-million tons of CO2 successfully injected and sequestered by 2006 [2]
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