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Technical Discussions
azri
azri
05:39 Feb-11-2007
MPI Underwater

Does anybody could give some knowledge of how to carried out UT and MPI for underwater, i means that the technique used and equipment used.

thank you


    
 
 
giorgio lucido
giorgio lucido
04:54 Feb-21-2007
Re: MPI Underwater
There are several UT single point measurement techniques and products for single point measurement (Cygnus for example).
also there is a Guided wave (LRUT) technique called GUL Subsea system for underwater inspection of long lengths of pipes.


    
 
 
Martin Lugg
Consultant,
United Kingdom, Joined Nov 2000, 27

Martin Lugg

Consultant,
United Kingdom,
Joined Nov 2000
27
06:13 Feb-22-2007
Re: MPI Underwater
----------- Start Original Message -----------
: Does anybody could give some knowledge of how to carried out UT and MPI for underwater, i means that the technique used and equipment used.
: thank you
------------ End Original Message ------------

If you are looking at MPI underwater, you should consider ACFM. This was developed for inspecting welded tubular structures underwater and has several advantages for detecting surface-breaking defects: it can be used 24 hours per day, it provides defect depth information, it provides auditable results and doesn't rely on operator interpretation, and it doesn't require cleaning to bright metal.


    
 
 
Simon Amallraja
Director
PET Aviation Systems P Ltd, India, Joined Jul 2003, 20

Simon Amallraja

Director
PET Aviation Systems P Ltd,
India,
Joined Jul 2003
20
07:51 Feb-22-2007
Re: MPI Underwater
----------- Start Original Message -----------
: : Does anybody could give some knowledge of how to carried out UT and MPI for underwater, i means that the technique used and equipment used.
: : thank you
: If you are looking at MPI underwater, you should consider ACFM. This was developed for inspecting welded tubular structures underwater and has several advantages for detecting surface-breaking defects: it can be used 24 hours per day, it provides defect depth information, it provides auditable results and doesn't rely on operator interpretation, and it doesn't require cleaning to bright metal.
------------ End Original Message ------------

You can contact Force Technology from Denmark. They have sub sea UT application system mainly used for Off Shore drilling projects. www.forcetechnology.com will give more info for you.

Simon Amallraja


    
 
 
Frank Lund
R & D,
United Kingdom, Joined Apr 2005, 219

Frank Lund

R & D,
United Kingdom,
Joined Apr 2005
219
01:36 Feb-27-2007
Re: MPI Underwater
----------- Start Original Message -----------
: Does anybody could give some knowledge of how to carried out UT and MPI for underwater, i means that the technique used and equipment used.
: thank you
------------ End Original Message ------------

NEWT International has an excellent lightweight system for underwater inspection, which has displaced MPI for defect detection and sizing. The system is very portable. It doesn't use a high voltage AC supply in the umbilical as it was designed to use only a single twisted pair in an umbilical, which can be on a ROV, in a diver's umbilical or a separate lightweight cable.

We would be happy to give you some references.



    
 
 

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