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 -
1055 views
Technical Discussions
Garfield
Garfield
01:54 Jun-15-2005
Underground Pipe Line Leak Detection

What technology is available to carry out NDT for leaks in miles of underground water line?


    
 
 Reply 
 
Syed Faran Hussain
Engineering
FFC Pakistan, Pakistan, Joined May 2005, 17

Syed Faran Hussain

Engineering
FFC Pakistan,
Pakistan,
Joined May 2005
17
03:48 Jun-16-2005
Re: Underground Pipe Line Leak Detection
Good Day Garfield,
As for our experience at FFC pakistan, we have buried underground line of length 46 km, & containg Natural Gas, the line is wrapped with a coating.the line is cathodially protected. we monitor the health of the pipe line by using pearson survey.
the prinipal is pretty simple that the line is connected to one end of the battery & on the surface a detection system is used monitor if there is any abnormal lekage of current. as any abnormal leakege detected at any point would mean that the coating is damaged & current is leaking. And this damaged coating means sites for corrosion to take palce.



    
 
 Reply 
 
John O'Brien
Consultant, -
Chevron ETC , USA, Joined Jan 2000, 278

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
278
08:25 Jun-16-2005
Re: Underground Pipe Line Leak Detection
Configuration, size, material will all affect what you can apply.

The water industry uses a version of acoustic emission based on cross correlation, if the line is capable an internal pig with acoustic leak detection. A company in the UK makes an Acoustic Leak Detector called Magic Carpet.

If you need more detail contact me


    
 
 Reply 
 
Ingo Becker
Ingo Becker
08:11 Jun-17-2005
Re: Underground Pipe Line Leak Detection
You might also take a look to the web pages of the tuev austria, they have an acoustic emission system called ALARM. The address is http://http://www.tuev.at/go/index.pl?l=uk&seite=wp54

best regards

Ingo


    
 
 Reply 
 
Nasrul Salman
Nasrul Salman
06:18 Jun-19-2005
Re: Underground Pipe Line Leak Detection
Hmm , Interesting,
we've been using guided waves and it yielded good results


    
 
 Reply 
 

Product Spotlight

IRIS 9000Plus - Introducing the next generation of heat exchanger inspection.

Representing the seventh generation of the IRIS system, the IRIS 9000 Plus has nearly 200 years of c
...
ombined field inspection experience incorporated in its design. This experience combined with a strong commitment to quality and a history of innovation has made Iris Inspection Services® the undisputed leader in IRIS technology.
>

NEW! The PragmaPro Instrument Platform

The PragmaPro is based on a modular cartridge technology and supports various NDT instrument modal
...
ities such as UT, PAUT, ECT and many more. This new platform is based on a machined, powder-coated aluminum frame for shock-proofness, best sealing qualities and maximum heat dissipation. This is practical to extend the outdoor temperature range and/or to extend the power injected in the transducers. The PragmaPro is aiming at a very wide range of applications, such as weld scanning, corrosion mapping and composite testing.
>

Echomac® Small

Available with up to eight channels of electronics to detect and evaluate thickness, flaws and eccen
...
tricity, this UT tester is housed in a convenient, smaller cabinet. This instrument can be used in conjunction with bubbler or immersion tank systems, or with a test bench or in laboratory applications. The Echomac® Small is available in the FD4, FD6 or FD6A versions.
>

iProbe - USB Phased Array Probe

Turn your PC, Laptop or Tablet into a powerful 32:64 Phased Array system with our USB powered Phas
...
ed Array iProbe and inspection software package. Perform affordable weld inspection and corrosion mapping inspections with this powerful but small system. The probe has a 100V pulser, 8K PRF, dual axis encoder input and achieves outstanding signal quality.
>

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