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Method and apparatus for mining copper

  • US 10,571,052 B2
  • Filed: 04/24/2018
  • Issued: 02/25/2020
  • Est. Priority Date: 04/24/2018
  • Status: Active Grant
First Claim
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1. A method of lining a well by a jointless pipe, the method comprising:

  • hanging a mandrel substantially vertically from a platform over the well;

    wrapping, helically or non-helically, a sheet of reinforced material around the mandrel, wherein the wrapped sheet of material forms a pipe segment around the mandrel;

    lowering at least a part of the pipe segment into the well such that a part of the pipe segment remains on the mandrel, wherein resin used during the wrapping is at least partially cured before the pipe segment is lowered into the well; and

    repeat the wrapping and the lowering steps as many times as necessary to line a desired length of the well, wherein the pipe segments are all attached to each other and form the jointless pipe.

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