The UltraWave LRT uses guided wave technology and excites low-frequency ultrasonic waves that travel lengthwise over tens of meters along a pipe, detecting wall thickness variations. The system is ideal to screen in-service pipes and pipelines, and to inspect limited access pipes from a single inspection position. It includes advanced software, acquisition unit, touch screen laptop, and compact probes with bands and bladders.
Pipe Inspection with Guided Waves
Offering the capacity to screen in-service pipes and pipeline over long distances, guided wave inspection is used to localize areas of concern on above-ground conventional structures and for advanced applications such as buried, insulated, coated, and vertical pipes. This technology also detects corrosion at supports, clamps, and pipe racks.
Guided wave technology can perform inspections on pipes with limited access. It pinpoints locations that require further inspection, avoiding unnecessary excavation, coating removal, or scaffolding, if no flaw is detected. The use of this technology helps provide a significant reduction in operating costs and is considered an inspection solution for unpiggable pipes.
Guided Wave Technology
Guided wave technology is a nondestructive testing method used to locate potential degradation, such as internal or external corrosion and metal loss. While conventional UT provides localized inspection, underneath or in the vicinity of the sensor location, guided waves are able to screen the entire pipe wall, over tens of meters, from a single inspection position. Then, prove-up inspection only needs to be conducted at the specific indication position. Combined with other NDT techniques, a guided wave system will help to maximize the efficiency of a corrosion management program, without compromising data quality.
Conventional UT provides localized inspection, underneath or in the vicinity of the sensor location.
Guided wave inspection allows for the entire pipe wall to be screened over tens of meters from each side of the probe collar location.
Advantages of Guided Waves
- High productivity inspection with long-range coverage and rapid screening.
- Ability to scan pipes with limited access, such as buried, coated, insulated and through wall pipes, leading to cost reduction for excavation and insulation removal.
- 100% screening coverage of pipe wall.
- Cost effective solution for pipe integrity management programs.
- In-service inspection (no production shutdown).
UltraWave LRT System
The UltraWave LRT system excites low-frequency ultrasonic waves that propagate in the axial direction of the pipe, from both sides of the probe collar. Various factors influence the maximum inspection distance: the pipe configuration and environment, the type of fluid inside the structure, and the type of coating. The propagated torsional waves detect general variations in the total cross-sectional area of pipe, as well as changes in the material properties.
Inspection lengths range up to 91 meters (300 feet) on each side of the probe collar.