U. S. DEPARTMENT OF ENERGY'S PILOT TEST EFFORTS TO SEQUESTER CO_2 IN GEOLOGICAL FORMATIONS

摘要

Nearly one third of the carbon emissions in the US comes from power plants. Many power plants and other large point sources of CO_2 emissions are located near geologic formations that are amenable to CO_2 storage. The US Department of Energy's (DOE) Research and Development (R & D) program for CO_2 sequestration in geologic media is a comprehensive effort to bring about this concept in a timely and acceptable method. The primary goal of the research in this area is to understand and validate the behavior of CO_2 when stored in geologic formations so that CO_2 can be sequestered for the long term in a manner that is secure and environmentally acceptable. Currently, the planned and on-going research and technology development includes initiatives to develop baseline information necessary to make decisions about potential demonstration and verification sites for CO_2 geologic storage. This paper presents an update of DOE-sponsored pilot-test opportunities for injection into a pressure-depleted oil reservoir, into deep saline reservoirs, and in unmineable coalbeds. All of these pilot field tests will help to predict, validate, and monitor the migration and the ultimate fate of injected CO_2.