Process for the acquisition of an internal log of a parameter throughout a pipeline
First Claim
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).
1 Assignment
0 Petitions
Accused Products
Abstract
A process for the acquisition of an internal log of a parameter, throughout a pipeline, comprises traversing a pipeline (40) with a pig (30) having a housed in its interior a sensor (31) for continuously sensing and recording the parameter log throughout the whole extend of the pipeline (40). The body (36) of the pig (30) is essentially made up of foamed polymeric or elastomeric material of specific gravity less than 40 kg per cubic meter, thus allowing the passage of the pig (30) past any reduction in diameter of pipeline (40), and thus rendering possible the employment of the measurement of a parameter gradient by means of pigs in long pipelines which are of considerable extend and/or are located in sites of difficult access or even in highly deformed pipelines. The measurement of pressure gradient is used in the monitoring of clogs which hinder the flow of fluids.
32 Citations
9 Claims
-
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, and
continuously 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).
Specification