发明名称 METHOD OF LINING A WELL OR A PIPE USING AN INFLATABLE BLADDER
摘要 According to the method, a cylindrical tube (1) is inserted into the well or the pipe (C) that is to be lined, after which part of the tube is radially expanded using an inflatable bladder (2) so that the wall of the tube is pressed against that of the well or of the pipe (C). According to the invention, this expansion is achieved by moving the already-expanded bladder axially and continuously along inside the tube (1) over a travel corresponding to the length of the tube or of the region of tube that is to be expanded. The invention can also be used in the fields of water or oil production.
申请公布号 EA016686(B1) 申请公布日期 2012.06.29
申请号 EA20100000197 申请日期 2008.07.08
申请人 SALTEL INDUSTRIES 发明人 NICOLAS FREDERIC;RIOU YOANN;SALTEL BENJAMIN;SALTEL JEAN-LOUIS
分类号 E21B33/127;E21B29/10;E21B43/10 主分类号 E21B33/127
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