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File thuyet trinh - Kiem tra an mon duong ong PM3

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Kiem tra am mon pm3

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File thuyet trinh - Kiem tra an mon duong ong PM3

  1. 1. INLINE& OUTSITE INSPECTION FOR PM3-CÀMAU PIPELINE Càmau05/2014
  2. 2. NDT1 INLINE INSPECTION - PIGGING2 DCVG3 PCM4 OVERVIEW: Cà Mau 03/2014 ROV5
  3. 3. ZZZZZZZZ Non Destructive Testing (NDT) Magnetic
  4. 4. Radiographic Coolidge: λ=0.01÷10 nanomet • X-Rays: Non Destructive Testing (NDT)
  5. 5. Radiographic λ< 10^(-12) met • Grammar: Non Destructive Testing (NDT)
  6. 6. Ultrasonic Non Destructive Testing (NDT) λ= v/f d= v.(t/2)
  7. 7. Non Destructive Testing (NDT)  Link NDT
  8. 8. Inline Inspection Pigging
  9. 9. What is a Pig? A pig is defined as: A device that moves through the inside of a pipeline for the purpose of cleaning, dimensioning, or inspecting.
  10. 10. Why Pig in a Pipeline? 1- Construction and commissioning . 2- In service (Cleaning & Sealing). 3- Routine pigging for corrosion and metal loss inspection PIGGING VIDEO
  11. 11. 1- Construction and commissioning: After the pipeline is built, it will be necessary to run pigs to : 1- Remove any debris left in the line from new construction; items such as lunch boxes, tools, welding rods, dead animals trapped in the line, etc. 2- Verify the ovality of the pipeline by the owner.
  12. 12. Cleaning pig:
  13. 13. Cleaning pig: MBD-18-LRR_LGRR: BIDI with Brush and Gauge Plate (410 mm) (2010) CLP-MBD-18-LRR_LRR: 18” Heavy Duty Cleaning Tool (2011) MBD-18-LRR_LRR: BIDI with Ring Brushes (2012) MBD-18-LRR_LGRR: BIDI with Brush and Gauge Plate (401 mm) (2012) H16-3.A: Heavy Duty Cleaning Tool (2012)
  14. 14. 2- In service: When the pipeline is in service : 1- Remove accumulated water in product pipelines 2- Remove any water that has accumulated in the low spots of the pipeline and reduce corrosion. 3- Separate products in pipelines that handle multiple products such as various grades of gasoline, heating oils, and jet fuels
  15. 15. 3- Routine pigging for corrosion and metal loss inspection: Before Inspection pigging: 1- Pre-Inspection pigging before running an ILI (In Line Inspection) tool will not only require the pipe be clean but a dummy pig be run to assure the ILI tool will go through the line. 2- Under certain conditions pipelines may require chemical cleaning or a train of gel pigs may be used for certain cleaning conditions. During Inspection: 1-Insert Intelligent Inspection Pig at certain point and follow him and receive it at certain point, for inspect metal loss and corrosion .
  16. 16. Profile Pig: • A profile pig multiple gauging plates, usually three plates. One plate is mounted on the front, one in the middle, and one on the rear of the pig. • It is normally used before running an ILI (In Line Inspection) tool to assure the tool's passage around bends and through the pipeline. • is a gauging pig with
  17. 17. Profile Pig: ID Mapping: Electronic Caliper (EGP: internal geometry inspection). (2010) Hires ID Mapping: Intelligent Caliper (XGP: internal extended geometry inspection). (2012)
  18. 18. How it works: » Instrumented pig travels with the propelling force of the fluid being pumped through the pipeline. While traveling inside the pipeline the onboard data recording systems record the defect data. The data is retrieved and interpreted after receiving the pig at the receiving pump station. » The data on external and internal defects is reported with fairly good accuracy with respect to defects sizing and location. » On the basis of this data the pipeline operator can take appropriate corrective measures depending upon the severity of the defects. Introduction Instrumented Pig is a device for inline inspection of buried pipelines to monitor their health and assess the risk associated with their operation. Inspection Pig
  19. 19. Principle of operation of Intelligent PIG: » Instrumented pig works on the principle of Magnetic Flux Leakage (MFL) and detect the mechanical defects by sensing the change in flux near the pipe wall under the influence of applied magnetic field. » The change in magnetic flux signal depends upon the extent and type of metal loss, changes in material and its magnetic properties.
  20. 20. Principle of operation of Intelligent PIG: (MFL)
  21. 21. Magnetic Flux Leakage (MFL) Corrosion Detection Pig(CDP) Axial MFL (CDP) (2010 & 2011) Three Axis MFL (2012)
  22. 22. Transverse Field (TFI) To detect a specifically (Axially) shaped defects like tunnel corrosion and longitudinal weld anomalies.
  23. 23. Transverse Field (TFI)
  24. 24. Ultrasonic Inspection Technology (UT)
  25. 25. Ultrasonic Inspection Technology (UT)
  26. 26. Direct Current Voltage Gradient (DCVG) link
  27. 27. Pipeline Current Mapping (PCM) link
  28. 28. Offshore Cathodic Protection Survey Service & ROV
  29. 29. Corrosion Corrosion can be defined as “the destruction or deterioration of a material because of reaction with its enviroment”. For corrosion to occur, all four of the following conditions need to be present:  Site for the reduction reaction to take place (cathode)  Site for oxidation reaction to take place (anode)  Electrical path – electrical continuity to allow electrons to transfer to the corrosion site.  Ionic path – Medium that allows the metallic ions to be transported.
  30. 30. Corrosion
  31. 31. Distribution of Electric Field Magnetic field
  32. 32. Measurement Methods Contact CP Probe Electrical Field Gradient (FG) Measurement
  33. 33. Remote Cell to Cell Technique
  34. 34. Remote Cell to Cell Technique
  35. 35. Schematic Data Input Lines from Twin Half Cell Contact & remote
  36. 36. Schematic Data Input Lines from Twin Half Cell Contact & remote
  37. 37. THANKSYOU!

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