发明名称 DISPOSITIF DE CHEMISAGE OU D'OBTURATION D'UN PUITS OU D'UNE CANALISATION
摘要 The invention relates to a device (1) for lining or closing off a well or a pipeline, said device comprising a radially expandable tubular liner (11) and at least one annular seal (12) carried by said liner (11). According to the invention, said seal (12) comprises at least one first part (121, 224) formed by a filament or a braid wound in a spiral around the outer surface of said liner (11).
申请公布号 FR3022577(B1) 申请公布日期 2016.07.29
申请号 FR20140055571 申请日期 2014.06.18
申请人 SALTEL INDUSTRIES 发明人 SALTEL BENJAMIN;BAJART FRANCOIS
分类号 E21B33/12;F16L9/16 主分类号 E21B33/12
代理机构 代理人
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