Offshore Pipeline Leak : Preservation Method
Offshore Pipeline Leak : Preservation Method
(OP)
Dear Pipeliners,
What is the best method to preserve a leaked offshore pipeline? The leakage is at the dogleg bend's weld (parted), therefore cannot be clamped. The pipeline is currently shut down, and already exposed to sea water for about 4 month. Next 5 month will be expected to carry out the replacement.
Rgds
WYN
What is the best method to preserve a leaked offshore pipeline? The leakage is at the dogleg bend's weld (parted), therefore cannot be clamped. The pipeline is currently shut down, and already exposed to sea water for about 4 month. Next 5 month will be expected to carry out the replacement.
Rgds
WYN





RE: Offshore Pipeline Leak : Preservation Method
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/
RE: Offshore Pipeline Leak : Preservation Method
RE: Offshore Pipeline Leak : Preservation Method
RE: Offshore Pipeline Leak : Preservation Method
RE: Offshore Pipeline Leak : Preservation Method
Are there impressed current options? Can you attach temporary anodes? In any case, with no equipment available, its probably difficult to do anything now, and whatever it might be is probably not very cost effective either.
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain
RE: Offshore Pipeline Leak : Preservation Method
Can the leaking bend be contained by two pigs from either sides? May be using some sort of rubber swell item either with the aid of pig or diver and temporary seal the leak till repair assessed completed?
Siddharth
These are my personal views/opinions and not of my employer's.
RE: Offshore Pipeline Leak : Preservation Method
RE: Offshore Pipeline Leak : Preservation Method
I dont think they would work in this instance as the pipeline is already shut down so there is no medium to inject the platelet rich gel into, and no pressure differential to cause them to migrate to the leak.
RE: Offshore Pipeline Leak : Preservation Method
RE: Offshore Pipeline Leak : Preservation Method
http://virtualpipeline.spaces.msn.com
"What gets us into trouble is not what we don't know, its what we know for sure" - Mark Twain
RE: Offshore Pipeline Leak : Preservation Method
RE: Offshore Pipeline Leak : Preservation Method
Whatever the method you will adopt, we would appreciate if you can come up with the same with the results later.
Thanks in advance.
Siddharth
These are my personal views/opinions and not of my employer's.
RE: Offshore Pipeline Leak : Preservation Method
Assuming there is diver access, the diver can insert an inflatable plug [http://
Rgds Naren
Narendranath R
Pipeline engineering is made easy with state of the art computer software, visit www.narendranath.itgo.com.