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To: peter dumbrille who wrote (5435)	5/17/2001 2:03:20 AM
From: CH4	Respond to of 5827

National Energy Technology Laboratory : Geologic Sequestration GOALS: Work with academia and industry in the near term to take advantage of value-added geologic sequestration opportunities. Obtain improved scientific understanding of CO2 storage in a wide range of geologic formations to ensure its environmental acceptability. There are certain underground geologic formations that have structure, porosity, and other properties that make them ideal CO2 storage sites. These are structures that have stored crude oil, natural gas, brine, and CO2 over millions of years. Long-term storage of CO2 in underground geologic formations has the potential to be viable in the near-term. Many power plants and other large point sources of CO2 emissions are located near geologic formations that are amenable to CO2 storage. Further, in many cases injection of CO2 into a geologic formation can enhance the recovery of oil and gas which can offset the cost of CO2 capture. The use of CO2 to enhance oil and gas recovery is a common industrial practice. In the year 2000 in the United States, 34 million tons of CO2 were injected underground as a part of enhanced oil recovery (EOR) and coal bed methane recovery (E-CBM) operations. This is approximately equivalent to the CO2 emissions from 6 million cars in one year. Research and development in this area will move the technology forward to make it applicable to a wider range of formations. Saline formations do not contain oil and gas resources and thus do not offer the value-added benefit of enhanced hydrocarbon production. However, the potential CO2 storage capacity of domestic saline formations is huge; estimates are on the order of several hundred years of CO2 emissions. The primary goal of research in this area is to understand the behavior of CO2 when stored in geologic formations so that CO2 can be stored in a manner that is secure and environmentally acceptable. The fastest and surest way to obtain the needed understanding is to conduct field tests where a small amount of CO2 is injected into a formation and its fate and transport are monitored carefully. The program has initiated several such field tests. These tests will provide industry with tools and methods that measure the movement of CO2 in underground formations. They will also provide field protocols that preserve the integrity of the geologic formation. Interactive Geologic Sequestration Model To view geologic sequestration in action, click here to save the executable file to your desktop or run it from its location. Once model is displayed, select the interactive choices in the left hand corner to display how CO2 concentrations will change over time.. netl.doe.gov ... lots more really cool stuff on Carbon Sequestration Website