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- since 1996 -
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Technical Discussions
Matt Clark
Matt Clark
04:52 Feb-15-2001
Corrosion testing of in-situ pipe

Could anyone advise me of a device that could examine a length of 6" pipe up to 5 miles long in one go. For corrosion, thickness and other abnormalies. The pipe has access at both ends
no bends or other restrictions as far as I know. I believe the pipe to be a sch40 thickness. I guess the device may be a 'PIG' type unit but must be cabable of travelling in and out the full length. The unit would need to be shipped to a third world country!. If no ones knows of such equipment for this length how far if possible. Also cost guide would be helpfull.
Thanks in anticipation


 
 Reply 
 
Christoph Schnitger
Christoph Schnitger
05:13 Feb-15-2001
Re: Corrosion testing of in-situ pipe

Dear Matts,

i submiot your inquiry to the compamy 3 P Services in Lingen ; Germany who
is one of the major manufactures for intelligent pigging also ca offer you the full
range in magnetic flaw scan outside fron non-isolated pipes over the ground !

Who can contact them directly under : http://www.3p-services.com

Greetings

Christoph



 
 Reply 
 
John O'Brien
Consultant, -
Chevron ETC , USA, Joined Jan 2000, 280

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
280
08:07 Feb-21-2001
Re: Corrosion testing of in-situ pipe
A tethered ultrasonic pig would do the job for you. I would need to check limitations on diameter plus you would have to flood the pipe with water or other liquid as a couplant. Length should not be a problem. Wall thickness resolution +/- 0.1 mm, 360 Degree coverage over full length. Third World country no problem.
Not likely to be cheap.
If you can provide more details I may be able to provide other options.


 
 Reply 
 
Tom Price
Tom Price
08:36 Apr-09-2001
Re: Corrosion testing of in-situ pipe
Try the Norwegian organisation called AGR Emiteam AS. Not cheap but v.high quality data recorded. They can offer an ultrasonic pig and may build one specifically for your application if required. Your pipe will need to be v.clean i.e. free from scale,wax,sludge,etc, and the pig can be driven by water (which acts as the couplant).



 
 Reply 
 
S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex , India, Joined Feb 2001, 787

S.V.Swamy

Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
787
09:42 Apr-10-2001
Re: Corrosion testing of in-situ pipe
If the testing pig needs a very clean pipe i.d, it is probably better to first send a cleaning pig in the pipe before attempting to test the pipe with the Norwegian setup described. The cleaning pig could also incorporate a lighted visual inspection camera to ensure that the scale etc., has been fully cleaned. Would like to hear other experts' perception on this - Swamy

: Try the Norwegian organisation called AGR Emiteam AS. Not cheap but v.high quality data recorded. They can offer an ultrasonic pig and may build one specifically for your application if required. Your pipe will need to be v.clean i.e. free from scale,wax,sludge,etc, and the pig can be driven by water (which acts as the couplant).
.



 
 Reply 
 
S.V.Swamy
Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex , India, Joined Feb 2001, 787

S.V.Swamy

Engineering, - Material Testing Inspection & Quality Control
Retired from Nuclear Fuel Complex ,
India,
Joined Feb 2001
787
09:43 Apr-10-2001
Re: Corrosion testing of in-situ pipe
If the testing pig needs a very clean pipe i.d, it is probably better to first send a cleaning pig in the pipe before attempting to test the pipe with the Norwegian setup described. The cleaning pig could also incorporate a lighted visual inspection camera to ensure that the scale etc., has been fully cleaned. Would like to hear other experts' perception on this - Swamy


: Try the Norwegian organisation called AGR Emiteam AS. Not cheap but v.high quality data recorded. They can offer an ultrasonic pig and may build one specifically for your application if required. Your pipe will need to be v.clean i.e. free from scale,wax,sludge,etc, and the pig can be driven by water (which acts as the couplant).
.



 
 Reply 
 
Eugene Liu
Eugene Liu
02:08 May-10-2001
Re: Corrosion testing of in-situ pipe
Please call me @ 281-588-8889.


 
 Reply 
 

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