Guys it might seem easy question, but as a non-expert in FEA, your answers is quite helpful here!
Assume we model a structure (let's say a frame) using beam elements. The cross section is I-beam and we define it by geometry.
Now after solving the job, we have bending moments, axial forces, etc...
There was a thread in this forum about "using washers in subsea bolted connections" (thread311-296001).
It was suggested there that no washers are usually used in subsea applications. But why?
As washers are required to provide larger pressure area, avoid component (let's assume flanges) damage...
Guys!
Anybody who is kind enough to briefly explain to me (or recommend a good reference) about:
1-the procedure of installing flexible risers on the seabed and attaching them to let's say a subsea manifold/PLEM. (I know it should be very similar to pipeline initiation, laying and lay-down but...
I have a offshore pipeline which typically has to be coated with 3LPP, due to operating temperature and subsea application. Pipe will be also coated by concrete coating.
Now there is an offer to use 3LHDPE.
Question is:
- Is there any drawback for 3LHDPE compared to 3LPP?
- 3LHDPE is not...
I was wondering if it is possible to use carbon steel ball and seats -without overlaying- in a ball valve with:
-oil service with no H2S no CO2
-low corrosion in pipeline, but as per DNV assumed 3mm (min. value)
The standards (ISO, API) have general expression about suitability of material...
Hope this forum will be the right place to ask it!
I need a figure how much contingency should be considered when issuing the requisition for sacrificial anodes for offshore pipeline?
does a 10% contingency would cover all spares and contingencies due to any damage or loss?
what is the typical...
I need a figure how much contingency should be considered when issuing the requisition for sacrificial anodes for offshore pipeline?
does a 10% contingency would cover all spares and contingencies due to any damage or loss?
what is the typical value for that in the industry?
thanks
I have read almost all of the topics in Eng-tips about ball valves and Double block and bleed (DBB), Double Isolation and Bleed (DIB), etc.
I also read the API 6D definitions and tests (DIB-1 and DIB-2).
BUT STILL STUCK THERE!
I would appreciate if somebody can answer my question, put in simple...
