%0 Journal Article
%T SEISMIC WAVE VELOCITY MONITORING OF CO2 MIGRATION IN POROUS SANDSTONES SATURATED WITH WATER<br>利用弹性波检测多孔质饱和砂岩中的二氧化碳流动状态
%A Xue Ziqiu
%A Ohsumi Takashi
%A Koide Hitoshi
%A <br>薛自求
%A 大隅多加志
%A 小出仁
%J 岩石力学与工程学报
%D 2003
%I 
%X Laboratory experiments were conducted to measure the compressional wave velocities under hydrostatic pressure in Shirahama and Tako sandstones with a porosity of 12% and 24%,respectively. In dry samples,the pressure dependence of velocity is ascribed to the difference in pore structures. Velocities were also measured to map the movement of the injected CO2 within water-saturated samples during CO2 injection. In the water-saturated samples, velocity changes caused by the CO2 injection are typically on the order of 10%. A series of seismic tomography experiments are conducted on porous sandstone samples to demonstrate the use of cross-well seismic profiling for monitoring the migration of CO2 in geological sequestration projects.
%K P-wave velocity
%K sandstone
%K pore structure
%K monitoring
%K carbon dioxide
%K geological sequestration<br>CO2
%K 弹性波
%K 检测
%K 饱和砂岩
%K 流动性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=040563369FEA15B3&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=B31275AF3241DB2D&sid=15A3E3A739C4EF3F&eid=66156A49F03BF135&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=0&reference_num=6