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Process for the acquisition of an internal log of a parameter throughout a pipeline

  • US 5,659,142 A
  • Filed: 12/04/1995
  • Issued: 08/19/1997
  • Est. Priority Date: 12/04/1994
  • Status: Expired due to Fees
First Claim
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1. A process for the acquisition of a log of a physical parameter throughout a pipeline, which comprises traversing a pipeline (40) with a pig (30) having a pressure responsive sensor housed therein, andcontinuously sensing and recording an internal pipeline pressure log throughout the whole extend of the pipeline (40) wherein the body (36) of the pig (30) is made up of foamed polymeric or elastomeric material of a density less than 40 kg per cubic meter to enable the pig (30) to pass a reduced diameter portion of the pipeline (40).

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