WELCOME TO

LIXI PROFILER PRESENTATION

PRESENTATION BYPRESENTATION BY

NAME: HISSHAM & SENTHIL

TEL: 6515 2680

EMAIL: ADMINSG@METALCARE.COM

LIXI PROFILER - PARTS

1. Computer Module

2. UniConnect Module

3. Detector Module

4. HUD

5. C-Arm

6. Source Holder

7. Battery Brick

8. Source Gd153

• Lixi profiler uses Gd153 radioisotope source on one end of C-arm and the detector will be on the other end.

• When it is placed around pipe, small amount of focused radiation beam penetrates the diameter of the pipe.

• The amount of radiation received by detector is converted to an equivalent steel thickness measurement by the computer module.

• The result will be shown on the computer screen in real time image, which will be used to identify welds, corrosion, blockage, fouling, or variety of other indications commonly found in piping systems.

LIXI PROFILER - INTRODUCTION

LIXI PROFILER - SYSTEM

Pipe wall thinning Corrosion under Insulation (CUI) Pipe Blockages such as Bitumen, Ice, or any another foreign

material Wet Insulation Cluster of Internal and external pitting Wall thickness measurement on insulated or bare pipes w/ or

w/o product Wall thickness measurement on very hot pipes while in-service Weld Identification on Insulated Stainless Piping Systems

LIXI PROFILER- APPLICATIONS

LIXI PROFILER - ADVANTAGES

Detect Corrosion – 90% of all corrosion including CUI - on the bottom of the Pipe. Lixi Profiler provides a larger area inspected without removing of Insulation or the

need to Shutdown the Production Productivity is high compared to Profile Radiography or Ultrasonic Thickness

Measurement Easy to operate & Equipment can be Hand Carried from one location to another The Immediate results in Real Time

Work on rechargeable battery and no requirement for local power supply

LIXI PROFILER - LIMITATIONS

A) Not recommended for detection of cracks and pin-holes

B) Can be used only for piping that has both side access

C) Restrict access to establish Safe Working Areas

D) Less sensitive over 30mm equivalent steel penetration thickness

Sample of pipe section with external corrosion scale detected by the Profiler

LIXI PROFILER – EFFECT OF SCALE

0.250” Wall Thickness = Profiler Reading of ~ 0.500”

How does the Lixi Profiler Work?

Add 4” Insulation = Profiler Reading of ~ 0.620”

Add Product = Profiler Reading of ~ 0.843”

Add Product = Profiler Reading of ~ 0.843”

However, if a corroded area isscanned over withthe Lixi Profiler, thenthe scan will reflect a loss of density equivalent to the lossof steel.

For example, if a pit of 0.100” is scannedover, the Profiler will show a reduction inthe graph from 0.843”to 0.743.” Assumingthat the insulation and product density have not changed over a short distance,the only cause for a reduction in the graph would be lossfrom the metal pipe.

Nominal Thickness

Left: Profiler oriented perpendicularly over weld. Response is single, high-amplitude peak.

Right: Profiler oriented at an angle while scanning over weld. Result – baseline thickness increases and two lower-amplitude peaks result: one when the detector crosses the top of the weld and one when the source crosses the bottom of the weld.

This slide denotes what a corroded area might look like during an initial scan.

The next slide shows a technique to determine which side of the pipe has the corrosion by orienting the Profiler 90 degrees to the initial scan direction and taking a “slice” from the bottom to the top of the pipe.

Top Chord Density(More

Dense)

Center of Pipe

Bottom Chord

Density(Less

Dense)

Heat Affected Zone (HAZ) Corrosion

Weld

Thin-wall pipe

Reducer

Thick-wall pipe

Welds

Pipe Schedule Change:Sch. 40 on left; Sch. 80 on right

Weld in middle

Normal Insulated

Pipe

Water inInsulation

Ice in Insulation

Slice scan on the left is through the section of pipe devoid of debris.

The slice scan on the right is through a section of pipe having debris in it. Which direction was this scan taken (top to bottom or bottom to top)?

RadiographicProfiling

Upper images are digital radiographs of piping (20 – 30 locations per day)

Middle images are histograms (density charts) representing the thickness of the pipe along the yellow lines

The lower image is of a portable system that acquires histograms in real-time (150 – 250 locations per day)

1 5 9 13 17 21 25 29 T111 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 101 105 109 113 117

0.000

0.100

0.200

0.300

0.400

0.500

0.600

0.700

0.800

0.900

1.000Session # 119 - T111 : 0.552

A

Weld A

Weld A

Corrosion on backside of Tee

Horizontal Pipe

Elbow

Vertical Pipe

Welds

WHAT COULD THIS BE?

TYPICAL EXTRADOSE EROSION

SAMPLE REPORT

SAMPLE AXIAL SCAN GRAPHAxial Scan Result for 4” Pipe with 8.56mm single wall thickness (~17.12mm double wall)

The total thickness reads as 21.5mm, indicates that the pipe is not empty.

OTHER METALCARE SERVICES

1. Long Range Guided Wave Ultrasonic Testing (LRUT) for Pipeline Corrosion Monitoring

2. Tank Floor Corrosion Survey using Magnetic Flux Leakage (MFL) Floormap

3. Tank Wall Corrosion Survey using C-Scan Remotely Operated Crawler

4. A,B & C-Scan Corrosion Mapping

5. NDT & QA/QC Inspection

6. API 510, 570 & 653 Inspections

THANK YOUCORPORATE OFFICE (CANADA)Metalcare Inspection Services Inc

PO Box 6549, Fort McMurray, AB T9H 5N4Tel > +1 (780) 715 1889 Fax> +1 (780) 715 1898Email> info@metalcare.com

REGIONAL OFFICE (SINGAPORE)Metalcare Solutions Asia Pte. Ltd.

21 Toh Guan Road East#06-12 Toh Guan Centre SINGAPORE 608 609Tel > +65 65152680 Fax> +65 65155490Email> adminsg@metalcare.com