Process for the acquisition of an internal log of a parameter th

Details Process for the acquisition of an internal log of a parameter th Process for the acquisition of an internal log of a parameter th

1995-12-04

1997-08-19

Raevis, Robert

Measuring and testing

Inspecting

B32B 106

Patent

active

056591420

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.

REFERENCES:
patent: 3754275 (1973-08-01), Carter et al.
patent: 3875606 (1975-04-01), Landers
patent: 3949292 (1976-04-01), Beaver et al.
patent: 4083076 (1978-04-01), Girard
patent: 4389461 (1983-06-01), Scott
patent: 5358573 (1994-10-01), Sivacoe

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