P&IDs Updation

Operational issues of any Petrochemical plant or Oil and gas field, upstream issues, etc.
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P&IDs Updation

Post by Guest »

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We have been facing issued with updated P&IDs actually reflecting plant build. Should there be some regular checks /audits to see existing practices?
ww2i
Posts: 106
Joined: 20 Nov 2025, 21:06
Area of interest: Petroleum Engineering

Re: P&IDs Updation

Post by ww2i »

You would not find this weitten anywhere that you need to have such a check or an audit process in place but some sites have practice of regular inspection of their PSI package. I have seen some performing detailed line walk downs every 5 years.
sys1
Posts: 49
Joined: 06 Apr 2026, 08:02
Area of interest: Chemical Engineering

Re: P&IDs Updation

Post by sys1 »

OSHA 29 CFR 1910.119(d) clearly states that when a change affects process safety information, the documentation (including P&IDs) must be updated accordingly. And to assure this, you may have your internal procedures, workflow, and an audit process.
tuan
Posts: 147
Joined: 27 May 2025, 14:07
Area of interest: Chemical Engineering

Re: P&IDs Updation

Post by tuan »

Yes, the reference has to be made to OSHA however CCPS refers to availability of process safety information as well.
Regarding the regular check, I would say that a risk based approach is best to follow.
I recall a guideline document established at our place to periodically verify PSI. However, that was focusing on high hazard areas at every 3-5 years, and utilities every 5-10 years.
This is in addition to having a robust system to update the documents with each change implemented at site.
ivani1
Posts: 149
Joined: 25 May 2025, 14:25
Area of interest: Mechanical Engineering

Re: P&IDs Updation

Post by ivani1 »

We can just give it as much importance as any governing body has given. I have not seen any 1st pillar of process safety at any hydrocarbon facility first not talking about process safety information. We do not move further if we have issues here. Even today, most of the audit bodies come in and try to focus a lot here. We got picked with one of the change document not updated in system though an updated drawing was available somewhere else. This is on the importance of having P&IDs updated at all times.

And with these things, we should never be leaving our basics. Even today, we have one wooden compartment in our control room which contains THE updated P&IDs with the ones with drafting team, available in red mark-up. There is no time that with Operations, there is any P&ID not in its true updated version.

Now our control on getting P&IDs red mark-up converted to As-Built is in form of 15 days window once red mark-up is provided. That is monitored and in case there are identified gaps, we have change management team highlighting this to big bosses.

I do not recall we have any verification drive for P&IDs.
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