PIPELINE DACON INSPECTION TECHNOLOGIES INSPECTION …

DACON INSPECTION TECHNOLOGIES

PIPELINE

INSPECTIONSERVICES

Who we are

Conventional and

Advanced NDT and

Inspection Services

Oil and Gas, Refinery,

Petrochemical, Heavy

Industry, Mining

Over 400 personnel

including more than

300 inspectors

Thailand headquarters

with International

expertise since 1979

PIPELINE

INSPECTIONTECHNOLOGY


DACON INSPECTION SERVICES F O R A L L Y O U R I N S P E C T I O N N E E D S

Intelligent Pigging Systems

MFL (Magnetic Flux Leakage) UT (Ultrasonic Testing)

MeasurementUses magnetic flux leakage technique to magnetize line and measure flux leakage.

Uses ultrasonic testing technique to take measurements at 1,600 times per second.

AccuracyResults quoted as +/- 10% which means 20% margin of error.

Highest available accuracy with defects measured to within 0.1 mm.

Result AvailabilityCan take 2 to 3 months with data analysis performed by expert.

Instantly available after inspection with simple and easy to understand analysis.

Size and WeightLarge tools sometimes weighing hundreds of kilograms needing cranes to launch.

Small lightweight tools weighing around 20%of MFL tools of the same diameter.

LaunchingLifting equipment required and due to large size needs significant clearing.

No lifting equipment required for tools up to 36" and can launch in restricted space.

MediumCan be used in most mediums including gas, liquid and multiphase.

Works only in liquid filled lines although batching can be used in gas lines.

Pipe Material Bare carbon steel only and to a maximum thickness of 25mm

Works on any material and on any thickness of pipe wall.

SpeedCan travel at speeds of 1 to 5 meters per second making them ideal for long lines.

Needs travel speed of 1 to 5 meters per second to be effective.

RangeCan travel many hundreds or thousands of kilometers.

Up to 100 kilometers is possible however up to 50 kilometers is ideal.

CostCheap in comparison to other techniques but expensive compared to Dacon UT.

Cost is 50% lower than other techniques and mobilization and launch is cheaper.



Dacon Specialize in UT



How UT Pigging Works

• Horizontally placed ultrasonic transducer sends sound waves horizontally.

• 45° rotating mirror directs the sound waves perpendicular towards the pipe wall.

• Signal reflects back to the transducer the same way it came.

• Difference in time between sent and received signal measured and recorded.

• Measurements of up to 1,600 times per second depending on the pipe diameter.



Ultrasonic Principle

Electrical > Mechanical Vibration > Very High Frequency Sound

Velocity = Distance Divided by Time

Reflected Wave

Object

Original Wave

Sender / Receiver



Measuring Defects

Signal Analysis



Why use UT

• Limited access work areas are fine

• Metallic and non-metallic pipeline

• Most accurate / detailed inspection method

• Simple data analysis

• No wall thickness limitation

• Immediate onsite results

• Final report within 2 weeks

• Saves time and money for all the above reasons



Cost Comparison

Real Cost Inspection + Excavation / Verification

350,000 $

300,000 $

250,000 $

200,000 $

150,000 $

100,000 $

50,000 S

0 $

UT MFL

ILI

Mobilization

ILI

+200%

ExcavationExcavation

Mobilization

ILI

Excavation

Mobilization


DACON INSPECTION TECHNOLOGIES DATAANALYSIS


Data Interpretation System

Step Wedge

2 mm.

4 mm.

6 mm.

8 mm.

10 mm. GOOD

BAD

MEDUIM



Data Analysis

Shows Longitudinal Location Of Defect

Internal Wall

Exact Remaining

Wall ThicknessAt Crosshair Location

Side View

Of Defect

External Wall

C Scan Shows Defect Location in Pipeline Circumference

B Scan Shows Wall Thickness



Data Analysis

Software “opens up” the pipeline

to display the data in an easy

to understand format.

B Scan Shows

Wall Thickness

C Scan Shows

Defect Location

In Pipeline Circumference



Actual Case

Weld 1

Weld 3

HeavyCorrosion

Weld 2


DACON INSPECTION TECHNOLOGIESPIPELINE

INSPECTIONPROCRESS


Progressive Pigging

• Soft foam pig is launched to ensure there are no obstructions

in the pipeline.

• Medium or hard density foam cleaning pigs are launched

to clean the line and further detect for obstructions.

• Gauging pig is launched into the pipeline as a final check for

obstructions, dents and ovalities that may cause problems.

• If gauging plate comes back in a satisfactory condition then

the Intelligent Pig is launched and the pipeline data acquired.

• Data is downloaded directly from the pig to the Dacon data

analysis system and an immediate initial assessment can be given.



CONFIDENCE


Simulation Tests

• Mock up your pipeline in our test yard

• Perform pull through test to ensure tool compatibility and effectiveness

• Witnessed by client

• Gives confidence that your pipeline will be inspected without any problems

• Test yard with full facilities is located in Thailand.



CASE STUDIES


Refinery

• Refinery

• 12” x 4km Kerosene Line

• 16” x 4kms Napta Line

• Online Inspection

• 12” Pigging Tool

• 6” Pigging Tool

• 3 Man Team

• Mobilize from Thailand

Description Solution

• Successful Inspections

• 7 Day Duration

• Full Data Capture

• Lines Fit For Service

• No Lifting Equipment

Needed

• Saved $40K Mobilization

Costs

• Small Team With Small

Footprint

• No Shutdown Needed

Result Benefit



Offshore Oil and Gas

• Offshore Platform

to FPSO

• Pass Through Plem

and Riser

• 6” x 5km Condensate Line

• Online Inspection

• Successful Inspection

• Successful Pass Through

Plem

• Successful Pass Through

Riser

• Line Fit For Service


• 6” UT Pigging Tool

• Specially Developed 2

Body Tool

• Tool Built & Tested By

R&D Team

• Tool Developed & Built

in Thailand

• Small Team On Platform

• Saved USD$30K

Mobilization Cost

• Cheaper Tool

Development Costs

• Easy Client/Contractor

Interaction

Result Benefit



Riser Inspection

• Riser - Offshore Platform

• 6” x 20 Meters

• Urgent Due To Heavy

Corrosion

• Line Shutdown For

Inspection

• Instant Report

• 79.5% Wall Loss

• Recommend To

Shutdown Line

• Line Repaired


• 6” Tethered UT Tool

• 2 Man Team

• Instant Reporting System

• Rapid Mobilization from

Thailand

• Critical Situation Quickly

Identified

• Fast Mobilization Within

Asia

• API Qualified Inspectors

• Immediate Action Made

Possible

Result Benefit



Mining

• Gold and copper mine

• 36” x 6km Tailings Line

• High Density

Polyurethane Lines

• Mission Critical Results

• Numerous Successful

Inspections

• Meets Government

Compliance

• Continued Safe Mine

Operation

• Tools and System Stored

On Site


• Specially Developed

And Built Tool

• Global First

• Measures Wall Thickness

in HDPE

• Floatation For Subsea

Recovery

• Unique Solution

• Close Cooperation

• Minimized Costs

• Team Based Joint

Solution

Result Benefit



Summary

• Asia Based With International Expertise

• Excellent Track Record

• Small, Lightweight Tools

• Easy Mobilization and Launch

• Extremely Accurate

• Simple Data Analysis

• Immediate Results

• Saves Time and Money



How Can We Help?

Contact

Email : [email protected]

Phone : +66 (0) 33 012 484-7

www.dacon-inspection.com


Documents

PIPELINE DACON INSPECTION TECHNOLOGIES INSPECTION …