LOPC Analysis Guidelines

Everything related to Health, Safety & Environmental issues of any Petrochemical industry or Oil & gas sector.
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ww2i
Posts: 62
Joined: 20 Nov 2025, 21:06
Area of interest: Petroleum Engineering

LOPC Analysis Guidelines

Post by ww2i »

Guys,

Have seen some very good discussions and work here.
By any chance, if anyone has performed any sort of LOPC analysis, just share something which may help.
Need to just read if there is already some good work done out there.
Thanks.
jeem
Posts: 97
Joined: 10 Aug 2025, 17:25
Area of interest: Chemical Engineering

Re: LOPC Analysis Guidelines

Post by jeem »

There is a publication available from CCPS, "Methods to Analyze Loss of Containment Scenarios".
I would recommend you to apply those methods. Pretty useful as we used them when analyzing our case.
mechcolor
Posts: 303
Joined: 17 May 2010, 18:05
Area of interest: Manufacturing Engineering

Re: LOPC Analysis Guidelines

Post by mechcolor »

jeem,
I am not sure if ww2i has been understood correctly.
The publication you are recommending is the one considering LOPC scenarios while performing a process hazard analysis, and ww2i may not be looking for that.
What I understand is that he needs some kind of an analysis which might have been performed for actual LOPC cases happened at site.
jeem wrote: 20 Jan 2026, 08:59 There is a publication available from CCPS, "Methods to Analyze Loss of Containment Scenarios".
I would recommend you to apply those methods. Pretty useful as we used them when analyzing our case.
ww2i
Posts: 62
Joined: 20 Nov 2025, 21:06
Area of interest: Petroleum Engineering

Re: LOPC Analysis Guidelines

Post by ww2i »

thank you, and that is exactly what I am looking forward to that how a good analysis could be made.
Any pointers actually would support.
mechcolor wrote: 20 Jan 2026, 17:54 jeem,
I am not sure if ww2i has been understood correctly.
The publication you are recommending is the one considering LOPC scenarios while performing a process hazard analysis, and ww2i may not be looking for that.
What I understand is that he needs some kind of an analysis which might have been performed for actual LOPC cases happened at site.
jeem wrote: 20 Jan 2026, 08:59 There is a publication available from CCPS, "Methods to Analyze Loss of Containment Scenarios".
I would recommend you to apply those methods. Pretty useful as we used them when analyzing our case.
jeem
Posts: 97
Joined: 10 Aug 2025, 17:25
Area of interest: Chemical Engineering

Re: LOPC Analysis Guidelines

Post by jeem »

ww2i,
Just something which you may have already seen as well:
https://becht.com/becht-blog/entry/redu ... -refinery/
sys1
Posts: 11
Joined: 06 Apr 2026, 08:02
Area of interest: Chemical Engineering

Re: LOPC Analysis Guidelines

Post by sys1 »

If you ask me, this is quite limited.
Give me some time and I would make sure to bring in some useful info from my colleagues responsible to analyse leaks.
jeem wrote: 24 Jan 2026, 20:12 ww2i,
Just something which you may have already seen as well:
https://becht.com/becht-blog/entry/redu ... -refinery/
sys1
Posts: 11
Joined: 06 Apr 2026, 08:02
Area of interest: Chemical Engineering

Re: LOPC Analysis Guidelines

Post by sys1 »

Alright so just to have correct analysis and learning in place from LOPCs, following is recommended as I discussed with Operations, Maintenance and my HSE colleagues:
1. Source identification
2. Repetition case identification
3. Case to case investigation
4. Determination of quantity of release /how big was the leak
5. Identify the discipline handling the process containment
6. Issuing an initial report for all cases
7. Running such an analysis on monthly basis
8. Tracking of actions already identified
9. Inspection data having potential to turn to a leak in coming running time
jeem
Posts: 97
Joined: 10 Aug 2025, 17:25
Area of interest: Chemical Engineering

Re: LOPC Analysis Guidelines

Post by jeem »

Good ones!
sys1 wrote: 26 Apr 2026, 13:50 Alright so just to have correct analysis and learning in place from LOPCs, following is recommended as I discussed with Operations, Maintenance and my HSE colleagues:
1. Source identification
2. Repetition case identification
3. Case to case investigation
4. Determination of quantity of release /how big was the leak
5. Identify the discipline handling the process containment
6. Issuing an initial report for all cases
7. Running such an analysis on monthly basis
8. Tracking of actions already identified
9. Inspection data having potential to turn to a leak in coming running time
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