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Huff and Puff Test Completed in Illinois
Illinois  US

Thursday, May 24, 2007
Article Type: Cited

A "Huff and Puff" test has been completed in Illinois, to inject carbon dioxide into a well and see how much the production rate subsequently increased.

In the test, being run in the Louden field, Fayette County, 45 tons of carbon dioxide was injected into a producing well for 3-5 days, and left to soak into the well for a week.

The well was then put back into production, and the initial oil production was four times what it had been previously, due to the carbon dioxide underground creating pressure and forcing it out. However the oil production declined fairly quickly.

The project team is now trying to work out how much injected carbon dioxide is still in the oilfield.

The site is rural, flat agricultural land, and has been producing oil for over 65 years. The sites for the testing were originally chosen in a validation phase ending in June 2005, with Louden Field being chosen from a list of 38 sites.

The test is being conducted by the Midwest Geological Sequestration Consortium (MGSC), which was set up by the US Department of Energy in 2002 to develop carbon sequestration technologies.

The tests are part of the validation phase of the Department of Energy's Regional Carbon Sequestration Partnerships program, managed by the Office of Fossil Energy's National Energy Technology Laboratory.

The tests will also aim to find out the best sites for carbon sequestration. The test will find out if it is possible to store carbon dioxide in mature Illinois oil reservoirs, as part of an enhanced oil recovery program.

The test will aim to demonstrate that carbon dioxide can be safely stored permanently underground as well.

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