Thursday, March 11, 2010

TCR Arabia undertakes Long Range Guided Wave in Saudi Arabia

The Long Range Guided Wave Ultrasonic Technique (LRGUT)  was designed to inspect 100 percent of a pipe segment from one single location.
Torsional or longitudinal guided waves are induced into the pipe body and propagated along the pipe segment being inspected. When these guided waves identify an anomaly or pipe feature, they mode convert into laminar waves and reflect back to the tools original location. Using a laptop these signals are digitally captured.  The time-of-flight for each signature is calculated to determine its distance from the tool. The cross sectional area is calculated by amplitude and then the circumferential extent determined by the focused beams (broken down in octants) to determine the significance of the defect.
Its primary application is within the Oil and Gas Refining, Petrochemical, Storage, Offshore and Pipeline Transportation industries used to inspect difficult to access piping systems such as:
•    Insulated Pipe in Refineries 
•    Offshore Pipeline Risers
•    Cased Road or Railway Crossings
•    Loading Lines and associated Pipe work
•    Tank Dyke Pipeline Crossings
•    Above Ground or Buried Flow Lines
•    River or Bridge Pipeline Crossings
•    As part of ECDA & ICDA Methodologies

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