CO2 Sequestration Test in a Deep, Unminable Lignite Seam
From 2005 to 2009, the PCOR Partnership implemented a small-volume CO2 storage test in a lignite coal seam in Burke County, northwestern North Dakota. The Lignite Test was one of the four CO2 storage validation field projects performed during Phase II (20052009) of the ongoing PCOR Partnership Program. The project was designed to 1) demonstrate that CO2 can be safely injected and trapped in an unminable lignite seam, 2) assess the feasibility of CO2-enhanced methane production from lignite, and 3) evaluate a variety of operational conditions to determine their applicability to similar coal seams within the region or beyond. Information is provided related to site selection; permitting; drilling, coring, and well installation; well development and preinjection monitoring; CO2 injection; postinjection monitoring; observations; and well closure and site reclamations. September 2016 version.View/Download Document