March 27, 2013 — Work began last week on a 4,800-foot-deep research well in northeastern Carter County.
This project is part of the carbon dioxide (CO2) storage research mandated by a 2007 special session of the Kentucky General Assembly.
Hanson Aggregates provided KGS with access to property at its AA Limestone quarry for the project.
Mike Lynch, a spokesman for the Kentucky Geological Survey, said the project objective is strictly to gather information.
“We can test for the ability of some formations to accept carbon dioxide to be stored in the pore space and other formations closer to the surface to seal it in,” Lynch said. “But no CO2 will be injected into this well. Other tests will be run on the samples we collect but that’s all.”
Lynch said concerns with global climate change have led to these types of projects.
“There has been research that says we need to reduce the carbon we put into the atmosphere,” Lynch said. “One way to do that is to collect it and store it permanently, deep in the ground.”
A similar project in Western Kentucky led to the successful storage of several hundred tons of CO2.
The information collected in this project will determine the suitability of the area for storage, but Lynch said there are no plans to store CO2 at this site.
Lynch said some local residents have expressed concerns about their well water. He said KGS is monitoring the wells for changes.
“We are doing this to assure the people that it will make no changes to the quality of their water,” Lynch said.
Hanson Aggregates is a subsidiary of Lehigh Hanson, Inc., which is part of the Heidelberg Cement Group, one of the largest building materials manufacturers in the world.
This well will be a stratigraphic-test well designed to collect geologic information about the nature of the deep subsurface formations in northeastern Kentucky, without actual CO2 injection.