Inspection of Corrosion under Pipe Supports

ROSEN delivers in-service inspections for non-accessible areas

Corrosion at inaccessible areas is one of the leading causes of topside process piping failure. ROSEN delivers in-field inspection services that leverage EMAT technology. It can be used for difficult-to-reach areas such as CUPS, pipe supports, pipes in walls, partially buried pipelines, and pipes that are positioned in close proximity to each other, such as pipe racks. Other applications include e.g. coated pipes, areas next to supports, buried pipes as well as pressure vessels and tank shells.

Measurement principle:

  • EMAT lamb wave inspection in circumference and axial direction
  • Detection and sizing of pit like indications and locate wall thinning

Key features for inspecting corrosion at pipe supports::

  • Ability to inspect supports in service, without lifting.
  • Highly sensitive feature detection
  • Requires no special preparation and permits rapid screening
  • Data is captured, stored and reported.
  • Reports are automatically generated and the scans provide clear images of individual features and precise indication of position and dimensions



High sensitivity measurement system setup
Fast and accurate data analysis with repeatable results
Provides real-time indication of features
No liquid coupling medium required
Currently limited to <15mm Wall Thickness and >3 inch pipe


Accuracy +/- 15% Wall thickness standard
Areas of Application Above ground, non-insulated piping; Refineries, Terminals (jetties)
ATEX certified No
Capabilities Detection and quantification of pipe support corrosion; Various pipe support configurations
Certifications / licences HOIS validated
Compliance API 570
In-service inspection possible Yes
Inspection Piping 4 inch and larger; Wall thickness up to 15mm
Temperature -20C till +100C standard
Relative business impact
CO2 footprint reduction:
Cost reduction:
Safety improvement:
Technology Maturity Level
Development Technology demonstration Mature / Proven

About ROSEN Group

The ROSEN Group is a leading global provider of cutting-edge solutions for all areas of the integrity management process. Since its origins as a one-man business in 1981, ROSEN has grown rapidly and continues to do so. Today the business is still privately owned and employs a team of more than 3,000, operating in more than 120 countries. The four key areas of expertise include:

  • Inspection of critical industrial assets to ensure reliable and effective operation
  • Customized engineering consultancy ensuring efficient asset integrity management
  • Production and supply of customized novel systems and products
  • Market-driven research and development providing “added value” products and services

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