Carbon Steel Fin-Fan Tubes Near-Field Array (NFA) Integrity Evalutions

NFA INSPECTION
KAOTHEEM offers NFA tubular inspection services to inspect the ID of carbon steel fin-fan tubes. NFA tubular inspections use multiple individual coils grouped together instead of the single coil used in standard near-field testing (NFT). NFA uses two rows of receiver coils to provide 360º coverage of the ID of finned tubes.

IN COMPARISON TO NFT INSPECTIONS, NFA:

  • Collects data for a larger tube area in a single pass.
  • Is more sensitive to ID small volumetric flaws.
  • Is better at sizing ID flaws.
  • Is more sensitive to circumferential cracks.

 

KAOTHEEM APPLIES NFA:

  • To identify ID general corrosion.
  • To identify ID erosion.
  • When satisfactory cleaning, needed for techniques such as Internal Rotary Inspection System (IRIS), is not achievable.

FEATURES

  • NFA results are displayed in C-scan images.
  • High Resolution Displays assist in better analysis

INSPECTION PREPARATION

  • Tube must be free of scale and debris. Calibration is based off custom NFA Standards that include different size diameter pits.

LIMITATIONS

  • Can only be used to inspect carbon steel.
  • Identifies only ID losses.

Carbon Steel Fin-Fan Tubes Near-Field Array (NFA) Integrity

KAOTHEEM has been serving the oil and gas, petroleum and petrochemical, chemical, power generation, pipeline and potash industries since 2016.

As one of the indigenous NDT companies in Africa, we are owned and operated by our Highly Trained Employees and Team of Professionals, Inventors & Technologist Partners across the globe.

Road 2, today fm drive rumuekini. Portharcourt.

Email: info@kaotheem.com

Phone: (+234) 813 927 2948

Website: www.kaotheem.com

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