Abstract
Since 2005, ExxonMobil has been successfully injecting CO2 and H2S in two Acid Gas Injection (AGI) wells in the Madison reservoir, ∼43 miles to the south of the LaBarge producing gas field. The existing LaBarge infrastructure captures 6 to 7 million metric tons of carbon each year. In 2025, ExxonMobil is planning to expand its carbon capture and storage facilities and drill a third, CO2-only disposal well located ∼7 miles away from the AGI wells near the Shute Creek Treatment Facility. The expansion project will capture up to an additional 1.2 million metric tons of CO2 annually at LaBarge. A static earth model was built to characterize subsurface reservoir conditions at the site of the new disposal well. A dynamic reservoir model included a history match of the AGI wells and was used to predict the size and location of CO2 plumes, injection rates over time and potential interference between new and existing wells.
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