where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

545 views
Technical Discussions
Geert Bontekoe
Geert Bontekoe
02:48 Feb-24-2009
In service tank inspection

The InTank system uses 8 transducers and takes 1200 measurements in 2 foot runs. We cover at least 2% of the tankfloor (in a 67ft tank that means 105 runs). Using RBI calculations we then calculate the predicted minimum remaining wall thickness.
There have been trials where the same tanks where first inspected by InTank and then taken out of service and tested with an traditional MFL floor scanner. InTank was better is those test compared to the out of service method in getting the minimum remaining wall thickness. It can measure both bottom and topside corrosion.


Regards Geert Bontekoe

    
 
 
bob sudharmin
Engineering, Reliability and Integrity Eng
Shell Malaysia Trading, Malaysia, Joined Jan 2008, 54

bob sudharmin

Engineering, Reliability and Integrity Eng
Shell Malaysia Trading,
Malaysia,
Joined Jan 2008
54
05:31 May-03-2009
Re: In service tank inspection
In Reply to Geert Bontekoe at 02:48 Feb-24-2009 (Opening).

Pardon me.
How can a coverage of 2% of the tankfloor be an adequate judgement on the minimum remaining wall thickness comparatively with the MFL scanner?

    
 
 
Geert Bontekoe
Geert Bontekoe
01:22 May-04-2009
Re: In service tank inspection
In Reply to bob sudharmin at 05:31 May-03-2009 .

Dear Bob, This has been tested in field trials.
We also did tests with 4% coverage. This resulted in a very small improvement in prediction of greatest wall loss for double the inspection time.

    
 
 

Product Spotlight

Alpha Pro Digital Radiography System

The Alpha Pro digital X-ray system is the ideal system for your NDT \r\nneeds, as it offers amazin
...
g 16 bit images which enable the highest \r\nlevel of detection and identification of hairline cracks. While weighing only 3kg (6.6lbs), this panel has the largest imaging area: 35 X 43 cm (14X17 in).
>

NOVO Armor 15 & NOVO Armor 22

The Armor Kit Contains the NOVO Armor, which provides additional mechanical protection to the NOVO 1
...
5WN & NOVO 22WN Detectors, the Armor Stand and a traveling soft cover. - Newest shock absorbent technology case - Water resistant design - Supports wired & wireless communication - Multiple positioning options - Tripod connection using the Built-in 1/4” threads - Simple Detector battery replacement
>

Echomac® PA Rail Wheel Tester

MAC introduces two versions of Rail Wheel Testers using ECHOMAC® PA platform based on customer requ
...
irements.
>

ISONIC 3510

Very Powerful Superior Performance Extremely Portable Smart Phased Array Ultrasonic Flaw Detector an
...
d Recorder with 2 Conventional UT and TOFD Channels uniquely combines PA, single- and multi-channel conventional UT, and TOFD modalities providing 100% raw data recording and imaging. Suitable for all kinds of every-day ultrasonic inspections
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window