Portable receiver
Portable receiver
(OP)
HI,
We are in the process of designing a 30" crude oil line where the client wants to put a portable scraper trap.Does any one have an idea about portable scraper trap and how it looks (space occupied, etc.,) and the principle of operation. A sketch will help me in understanding.
Thanks in advance.
We are in the process of designing a 30" crude oil line where the client wants to put a portable scraper trap.Does any one have an idea about portable scraper trap and how it looks (space occupied, etc.,) and the principle of operation. A sketch will help me in understanding.
Thanks in advance.





RE: Portable receiver
David
RE: Portable receiver
I've used portable pig traps before, typically in a scenario where you have allot of small gathering lines that are the same size(not over say 12") that need to be pigged occasionally and the client didn't want to build a bunch of pig traps - we just had connections on each end of every one (a flanged, full bore valve) and a trailer mounted receiver & launcher that could be flanged up to which ever line needed to be pigged. Works good in that scenario, have not seen it for a single 30" line before or anything over around 12". Not sure what the drivers behind wanting portable traps are? It would help to know.
In my experience on these portable traps, they are not conducive, simply because of the size, to larger diameter pipelines. Again, it would help to know the rationale (if there is any) behind the clients request.
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: Portable receiver
It doesn't make sense to have a portable launcher/receiver when the pigs themselves really arn't all that portable either. You need a 18 wheeler to move more than 10 of the heavy ones. Maybe that is considered portable .. in some parts of the world. Or if it comes with its own D12 track rack? Is the connection made with braided "pig tails"?
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: Portable receiver
Thanks once again.
RE: Portable receiver
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: Portable receiver
Big Inch is correct. Need to look at the client's reasoning behind this request - is it cost, schedule, space limitations.
Also need to ask the client what type & frequency of pigging will they be doing. Will inteliigent pigs be used? The type of pigging will drive the length & configuration of the trap. There are nmany possibilities for pigging requirements and all need to be looked at:
For construction and commissioning:
- Debris removal
- Sizing platf/pig
- Hydrotest
- Dewatering
- Drying
- Geometry survey
- Pipe defect survey
For operations:
- Product segregation
- Scale and/or wax removla
- Solids removal
- Inibitor batching
- Condensate removal
- Pipleine internal inspection
- Geometric survey
How will these "traps" be tied into a drain system or collection area?
Typically, a min of 1 pig length (pig length depends on the type & manufactuer of the pig) of straight run pipe should be installed between bends & outlets coming into the trap.
Also, how will the pgis be detected - are there any pig sigs? Pig traps on one hand are pretty simple devices, but they be complex depending on the applications.
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: Portable receiver
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: Portable receiver
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: Portable receiver
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus
RE: Portable receiver
Let your acquaintances be many, but your advisors one in a thousand' ... Book of Ecclesiasticus