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NDT methods for Off-shore transmission lines
Posted: 15 Jul 2010, 12:17
by Nabeel Ahmed Qureshi
How welding quality is assured in offshore transmission lines? Is it necessary to hydrotest the offshore transmission line? If yes then what is the procedure & how leaks (if any) are captured? Any code reference would be agret help.
Re: NDT methods for Off-shore transmission lines
Posted: 19 Jul 2010, 12:54
by mechcolor
See this. It may help you through.
API RP 1111 - Design, Construction, Operation and Maintenance of Offshore Hydrocarbon Pipelines.
Re: NDT methods for Off-shore transmission lines
Posted: 20 Jul 2010, 05:07
by arcpro
Regarding hydrostatic test.
Yes, it is required to be performed on all offshore transmission lines as per API 1111 mentioned by mechcolor.
All the requirements in the said API have to be met and to detect the subsea leaks, there are several methods which are used, follow the link:
http://www.cisoilgas.com/article/The-ne ... detection/