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    • 5. 发明授权
    • Oil well plug and method of use
    • 油井塞和使用方法
    • US09353596B2
    • 2016-05-31
    • US14029957
    • 2013-09-18
    • Rayotek Scientific, Inc.
    • William Raggio
    • E21B33/12E21B33/13E21B33/128E21B33/129E21B33/134
    • E21B33/128E21B33/1208E21B33/129E21B33/134
    • A frac plug is configured to seal a bore of a pipe of a downhole well. The frac plug comprises a generally cylindrical plug member comprising a glass body. The glass body may be tempered or high-compression glass. The plug member has axial opposite ends and a length extending between the axial ends. The plug member has an outer diameter surface extending along the length. The outer diameter surface is tapered. The frac plug further comprises a seal of compressible material extending substantially around the plug member outer diameter. The seal has opposite axial ends generally corresponding to the axial ends of the plug member. The seal is movable axially relative to the plug member outer diameter surface. The seal is compressible against the plug member outer diameter surface and expandable radially outward to engage the bore of the pipe.
    • 压裂塞被配置为密封井下井的管孔。 压裂塞包括包括玻璃体的大致圆柱形的塞构件。 玻璃体可以回火或高压玻璃。 插塞构件具有轴向相对的端部和在轴向端部之间延伸的长度。 插塞构件具有沿着该长度延伸的外径表面。 外径表面是锥形的。 压裂塞还包括基本上围绕插塞构件外径延伸的可压缩材料的密封。 密封件具有相对的轴向端部,其大致对应于塞子构件的轴向端部。 密封件相对于塞件外径表面轴向移动。 密封件抵抗插头构件外径表面是可压缩的并且可径向向外扩张以接合管道的孔。