NDT Services Africa

DARLSCO has competency to provide the service included but not limited to the following:

   UAV Inspection

   Alternating Current Field Measurement (ACFM)

   Corrosion Under Support

   Eddy Current Array

   Phased Array Inspections

   Time of Flight Diffraction

   Tube Inspection

   Iris Inspection

   Remote Visual Inspection

   Remote Field Technology (RFT)

   Industrial Rope Access

   Eddy Current Testing

   Partial Saturation (PSEC)

   Magnetic Flux Leakage Testing

   Sea Chest Inspection

   Long Range Ultrasonic Testing

   FPSO Intergity Management

   Sphere Tank Inspections

   Tank Calibration

Calibration Storage Tanks

Shell Settlement Survey in-service Tanks The shell settlement survey will be carried out on periodic basis and depends on the assessment of soil and settlement predictions. The relevant standard is API 653 will be the document to identify an evaluate any tank bottom settlements.

Bottom Settlement The survey will be carried out for any significant depressions or bulges in the floor of the tank shell based on the recommended standard API 653 B3.3 to address the form of settlement.

   Floor Edge Settlement

   Edge settlement occurs when the sharp edges settles around the periphery thus resulting in deformation of bottom plate near shell to bottom corner junction (or) depth of depressed area of bottom plate. The floor edge settlement will be carried as per API 653 B

   Shell Roundness Survey The survey of tank will be performed according to ISO 7507.The objective is to obtain two heights of each strake. The internal radii at each measurement at 310 mm above the base of tank shell to generate the roundness report.

The Storage tank Inspection, calibration and Audit carried out for horizontal and vertical tanks including but not limited to

   Assessment of Soil/ subsoil characteristics including corrosion

   Three Dimension (3 D) modeling of the bottom of tank and the shell surrounding.

   Sampling and laboratory assessment of water and sludge inside the containers

   Storage tank floor measurement using conventional and automated technology

   External thickness measurements and calculation reviews using ultrasonic Thickness Measurement (UTG)

   Hydrotest/hydrostatic test of chamber/shell

   Identification plate stamping and adjustment

   Project management and construction supervision

   Tank floor volume measurement

   Tracing of system leaks and assessment of material strength

   Calculation of Ultrasonic density tests