Field experiment of enhanced coalbed methane-CO2 in the upper Silesian basin of Poland

摘要: A field experiment of carbon dioxide (CO2) storage in underground coal seams with simultaneous (enhanced) production coalbed methane was set up and performed the upper Silesian basin Poland. The main aim this project to investigate technical economic feasibility type CO2 under European conditions. An existing well cleaned up, repaired, put back into May 2004 establish a baseline production. new injection drilled 150 m (492 ft) away from well. This distance chosen breakthrough injected learn as much possible operations. Initial occurred August three Carboniferous age depth interval between 900 1250 (3117 4101 ft). Several actions were taken continuous injection, which eventually reached April 2005 after stimulation reservoir by frac job. In 2005, approximately 12–15 t/day Compared production, increased significantly because activities. Recovery is, however, low, is probably related low diffusion rates out coal. Nevertheless, total 692 t are stored reservoir, most likely adsorption on results provide good hope for successful future upscaling operations, although further research required. realization an onshore pilot can possibly help overcome start-up barriers initiatives Europe.