August 5, according to media reports, the major factor in global warming is increasing the air's carbon dioxide content, how to reduce carbon dioxide levels has become a major problem of research scientists. Recently, scientists found that carbon capture and storage is an important means of preventing global warming. It is reported that mining carbon dioxide storage wells from land to seabed is the first in the world.
Overseas, carbon capture and storage is also taking place at oil production sites. It is common to press carbon dioxide into the oil layer and then quickly extract the oil that was otherwise difficult to collect. Miao Xiaomu's test was carried out by the Japan Carbon Capture and Storage Research Corporation, which received funding from 35 companies in the power and petroleum sectors.
In Tomakomai, people need to recycle and store the carbon dioxide emitted from hydrogen production equipment without discharging it into the atmosphere. At present, on the land of 39,000 square kilometers, the construction of carbon dioxide separation and recovery facilities has begun. The area selected to sequester carbon dioxide is a layer of sandstone with tiny gaps, moisture, and a layer covered by a dense layer such as mudstone. The part with the gap is the "reservoir" of carbon dioxide, and the part corresponding to the cover is the "shadowing layer".
Carbon dioxide will slowly dissolve into the surrounding water. Because of the "shadowing layer", the water dissolved in carbon dioxide will not move at a large position. As long as there is no serious formation displacement and movement in the nearby fault, carbon dioxide will remain in the same location.
Engineers will drill 3,500 meters and 5,800 meters of deep wells from the land to inject carbon dioxide. The carbon dioxide fed to the seabed is to be added to a pressure equivalent to 230 times the standard atmospheric pressure. The temperature of the facility is maintained at 40 degrees, so that the carbon dioxide is in a "supercritical" state between the gas and the liquid, and then enters the formation gap. In order to confirm whether the sealed carbon dioxide will leak, a Machine for measuring temperature, pressure and vibration is installed around the facility and verified by computer simulation test.
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