An Evaluation of the Carbon Sequestration Potential of the Cambro-Ordovician Strata of the Illinois and Michigan Basins

Other · Wed Jan 01 00:00:00 EST 2014

OSTI ID:1167491

Kirksey, Jim; Ansari, Sajjad; Malkewicz, Nick; Leetaru, Hannes

The Knox Supergroup is a significant part of the Cambrian-Ordovician age sedimentary deposition in the Illinois Basin. While there is a very small amount of oil production associated with the upper Knox, it is more commonly used as a zone for both Class I and Class II disposal wells in certain areas around the state. Based on the three penetrations of the Knox Formation at the Illinois Basin – Decatur Project (IBDP) carbon dioxide (CO₂) sequestration site in Macon County, Illinois, there is potential for certain zones in the Knox to be used for CO₂ sequestration. More specifically, the Potosi member of the Knox Formation at about –3,670 feet (ft) subsea depth would be a candidate as all three penetrations had massive circulation losses while drilling through this interval. Each well required the setting of cement plugs to regain wellbore stability so that the intermediate casing could be set and successfully cemented to surface. Log and core analysis suggests significant karst porosity throughout the Potosi member. The purpose of this study is to develop a well plan for the drilling of a CO₂ injection well with the capability to inject 3.5 million tons per annum (3.2 million tonnes per annum [MTPA] CO₂ into the Knox Formation over a period of 30 years.

• Research Organization: Univ. of Illinois at Urbana-Champaign, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FE0002068
• OSTI ID: 1167491
• Country of Publication: United States
• Language: English