Full Description

Proven transmission pipeline diagnostic tools developed to obtain an accurateevaluation are essential in a bottom-up condition-based asset management approach.In addition, without prior information on the actual existing condition of an essentialpipeline, it is very difficult to determine how to effectively interpret the severity, andfuture decisions required, after an unexpected pipeline service interruption.The "Remote Field Eddy Current / Transformer Coupling" electromagneticinspection method is capable of detecting prestressing wire condition in concretepressure pipes 24" diameter and larger and has a proven record for accuracy inidentifying baseline pipeline conditions.Combined with a proven leak location survey specifically developed for 12' andlarger diameter pipes, all ferrous and non-ferrous transmission pipelines can now beassessed to determine advanced stages of deterioration through the identification andlocalization of each and every leak of any magnitude. The Sahara leak survey pinpoints the location and estimates the magnitude of leaksin pipelines of any material construction type. Inserted into a live pipeline, thetethered sensor head identifies and signals each leak as it is found, facilitating accuratesurface locating for subsequent rehabilitation.These non-destructive evaluation methods enable the selective repair or replacementof distressed and deteriorated pipe sections, and can alleviate the prohibitive cost ofcomplete pipeline replacement. Repeat inspections and surveys can then be used todetermine deterioration rates for effective maintenance programs to maintainacceptable levels of water supply.Monitoring critical water pipeline assets for signs of deterioration, either through leakmonitoring programs or active corrosion monitoring without the prior knowledge ofthe baseline condition can lead to false sense of security. Utilizing an effectivecombination of leak surveys and electromagnetic inspection identified in this paperprovides a system of determining current baseline conditions upon which furtherpipeline rehabilitation or monitoring programs can be properly designed andimplemented. Includes 6 references, figures.

Product Details

Edition: Vol. - No. Published: 09/01/2006 Number of Pages: 12File Size: 1 file , 2.4 MB