Hi,
For natural gas,i usually limit the velocity to 20 m/s at the smallest segment. But this is usually to avoid corr inhibitor ineffectiveness instead of errosion.
You may also want to check for flow induced vibration limitation (usually meassured as dynamic pressure, or Density x...
Hi,
Recently i am assigned to be seconded to another oil and gas company. This question may be just resulted in Different company standard, but i am really curious about the philosophy behind it.
So far, what i encountered in oil platform, LSHH at flare KOD (Knock Out Drum) will initiate...
Dear MortenA,
Thank you, that is exactly what we are facing now. We are converting this unmanned, with burn down philosophy platform to temporarily "manned" platform. We already resolved other requirement, like fire fighting system, ignition source control, POB management, Emergency evacuation...
Hi
In my opinion, Liquid thermal expansion is a condition resulted from direct solar radiation contact while the segment is blocked. Usually the expected temp from solar heating is up to 70 oC only (so the P increase and relied flow will correspond to volume increase of your liquid from its...
Hi,
UFL 100% volume means that even without air or any oxidizing agent your component will explode. This is usually represent a very unstable gas /vapor like acetylene. UFL usually stated in % volume of gas in air.
Correct me if this is wrong, but If your UFL =100% then your LFL is also 100%...
Hi,
We have an old unmanned platform that are going to be used to develop new well, so we will have drilling come next year to our platform. The thing is, this platform was designed unmanned and the blowdown is designed to be manual (by PB or remote from onshore).
Some of my friends thinks...
Hi,
My understanding is,
Deluge valve will open (literally the valve will open) upon detection of fire or manual initiation. Water will comes out on each nozzle on the respective fire area.
For Sprinklers, each sprinkler will be equipped with heat sensitive element. Upon any sprinkler elements...
Hi,
Just to add,
1. The SDV actually have something to do with the BDV opening. Blowdown are normally devided by sections. Both SDV downstream and upstream the section to be depressurized shall be closed first before BDV open to avoid overwhelming the flare system with the full flow of the...
Hi,
We are designing an unmanned remote wellhead platform. Due to economic reason and remoteness we are having trouble to place instrument air compressor on the platform and hence plan to use instrument gas.
On such case, is it OK if we pressurized the fusible plug loop with instrument gas? It...
The idea is have representative data for the whole flowline/pipeline/plant segment.
The distance between the two will be more of a operability and layout issue. I would suggest the following partice:
- Provide both downstream and upstream the injection. Any distance is OK as long as you think...
On such condition where there are too many unknown parameter, I would suggest to plot the UA for various time first. If you have sufficent historical data with fluctuation, you will get understanding on how different deltaT affect the efficiency.
If you think the correlation obtained above is...
Hi,
Please correct me if i am wrong. The purpose of the check valve there is to avoid back flow when you have a leak on your flowline. Flowlines are prone to leaking, since they are located at the upstream side of the process due to errosion (multiphase flow at high rate) and corrosion (higher...
Different companies has different practice in developing their operating procedure. Personally, i can not see the benefit of developing higher level procedure which then be detailed by other procedure. The procedure itself should be clear and adequate to help an "apprentice-equivalent" operator...
