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公开(公告)号:US20080099203A1
公开(公告)日:2008-05-01
申请号:US11958262
申请日:2007-12-17
申请人: Dan Mueller , Harold Brannon , Windall Bray
发明人: Dan Mueller , Harold Brannon , Windall Bray
IPC分类号: E21B33/13
CPC分类号: C09K8/467 , C04B20/1022 , C04B20/1037 , C04B20/1051 , C04B28/02 , C04B2103/0028 , C04B2103/0049 , C04B14/022 , C04B14/041 , C04B14/047 , C04B14/06 , C04B20/008 , C04B20/0024
摘要: A cement composition is provided including a cement and a low reactivity particle coated with a swellable polymeric material. The low reactivity particle is coated with a swellable polymeric material at a concentration of about 10 weight percent to about 50 weight percent, based on the weight of the cement. The swellable polymeric material swells to a larger volume when exposed to one or more hydrocarbons, depending on the selected polymeric material. The cement composition is used in a method as a self-sealing cement for cementing an oil and gas well, thereby minimizing or mitigating the unwanted migration of water or hydrocarbons.
摘要翻译: 提供了一种水泥组合物,其包括水泥和涂覆有可溶胀聚合材料的低反应性颗粒。 基于水泥的重量,低反应性颗粒以约10重量%至约50重量%的浓度涂覆有可溶胀聚合物材料。 取决于所选择的聚合物材料,当暴露于一种或多种烃时,可溶胀的聚合物材料膨胀到更大的体积。 该水泥组合物用作一种自密封水泥的方法,用于将油和气井井井固定,从而最小化或减轻水或碳氢化合物的不希望的迁移。