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四川威远地区注水诱发地震研究
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摘要
<正>水压致裂技术是将流体注入到低渗透率的地层中,使地下岩石产生新的裂缝,增加地层的渗透率,从而提高开采井的产量,在油气开采中得到广泛应用,1947年到2010年问,美国将近有100万口水压致裂开采井[Gallegos and Varela,2015]。特别是水平钻井技术的发展,可以使水平岩层发生破裂,有效地增加储层的渗透率,提高致密油气(如页岩气)的产量,成为资源开发新的增长点。水压致裂产生微裂缝的同时,会造成微小地震,震级一般小于1级[Ellsworth,2013]。然而如果压裂井附近存在断层,水压致裂则可能诱发较大的地震,2011年
引文
Atkinson,G.,K.Assatourians,B.Cheadle,and W.Greig(2015),Ground Motions from Three Recent Earthquakes in Western Alberta and Northeastern British Columbia and Their Imphcations for Induced-Seismicity Hazard in Eastern Regions,Seismol.Res.Lett.,86(3),1022-1031.
    Ellsworth,W.L.(2013),Injection-induced earthquakes,Science,341(6142),doi:10.1126/science.1225942.
    Gallegos,T.J.,and B.Varela(2015),Trends in hydraulic fracturing distributions and treatment fluids,additives,proppants,and water volumes applied to wells drilled in the United States from 1947 through 2010:Data analysis and comparison to the literatureRep.2328-0328,US Geological Survey.
    Rubinstein,J.L.,and A.B.Mahani(2015),Myths and facts on wastewater injection,hydraulic fracturing,enhanced oil recovery,and induced seismicity,Seismol.Res.Lett.,86(4),1060-1067.

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