Process safety information, checked before the HAZOP.
A HAZOP revalidation or a PSM audit needs the P&IDs, SOPs, cause-and-effect sheets, and the MOC trail to agree, and they don't. Raven's agents trace a year of changes through the documents each should have reached, then draft the pre-read for every node. The gaps come back in days.
For process safety, technical services, and HAZOP teams.
Changes close faster than the documents can follow.
Every change is approved, built, and closed, and the drawing gets revised. The procedure, the cause-and-effect sheet, and the HAZOP worksheet follow when someone has the time, and with dozens of changes a year some never do. The revalidation opens on documents that describe the plant at three different dates.
The documents Raven reads
The MOC register
every change, its approval, and its closeout, as exported from the MOC system
P&IDs & C&E sheets
what is on the drawing, and what protects it
SOPs
how the unit is run, and whether each change reached them
HAZOP worksheets & registers
what was studied, and what is still open
Read the changes. Trace each one. Link every safeguard. Draft the node pre-reads. Keep it current.
01
Read the MOCs and documents
Every change with the drawings, procedures, and C&E it should have reached.
02
Trace each change
Which documents were updated, which weren't, which still show the old plant.
03
Link safeguards to their tests
Relief valves, interlocks, and trips off the P&IDs and C&E, each with its test record.
04
Draft the node pre-reads
Drawings, safeguards, limits, incidents, and open changes in one file per node.
05
Keep it current
Every closed MOC and revised drawing re-runs the checks.
One node's pre-read, assembled. Every node on the schedule gets the same.
V-201 and line 1103
The six deliverables.
Every change, traced to its documents
01| MOC | Reached | Missed |
|---|---|---|
| MOC-2231 | P&ID · C&E | SOP · HAZOP |
| MOC-2240 | P&ID | DS · SOP |
| MOC-2198 | P&ID · C&E | HAZOP |
Which drawings, procedures, and C&E sheets each MOC reached, and which it never did.
SOPs checked against the drawings
02| SOP | Step | Against |
|---|---|---|
| SOP-118 R4 | step 6 | old route |
| SOP-118 R4 | step 9 | old set pt |
| SOP-121 R2 | all | Rev 7 |
Procedures that still describe the plant before the change, listed by step and by MOC.
The safeguard register, from the drawings
03| Safeguard | Basis | Test |
|---|---|---|
| PSV-201 | sizing | 2025 |
| FIC-1102 | C&E sh 4 | register |
| TAH-4012 | drawing | none |
Relief valves, interlocks, and trips off the P&IDs and C&E, each linked to its basis and test record.
Recommendations tracked to closure
04| Item | From | Status |
|---|---|---|
| Isolation P-101A | HAZOP 23 | closed |
| V-201 relief | audit 24 | open 14 mo |
| SOP-118 update | MOC-2231 | no evidence |
Every open item from studies, audits, and investigations, with the closure evidence or the gap.
A pre-read for every HAZOP node
05| Node | Pre-read | Open |
|---|---|---|
| 4 · V-201 | drafted | 2 chg · 1 rec |
| 5 · E-210 | drafted | none |
| 6 · P-101A/B | drafted | 1 rec |
Drawings, safeguards, limits, prior incidents, and open changes, in one file the facilitator opens.
The MOC and PSI findings
06Every gap counted, with the page that proves it, for your team to confirm.
Raven traces every change through every document, finds what an audit sample can't, in days instead of months.
An internal audit
A HAZOP consultant
Raven
Reviews a sample of the MOC register
Traces every change through every document it should have reached
Checks every SOP against the current drawing
Builds the safeguard register from the drawings
Drafts every node pre-read with its evidence
Every finding carries the page it came from
Time to the findings, one unit
Re-checked as changes close
Your facilitator still facilitates, and your engineers still decide. They start from documents that already agree.
Send a year of MOCs and the documents. The gaps come back in days.
01 · You give us
A year of closed MOCs, as exported from your MOC system
The unit's P&IDs and cause-and-effect sheets, scans are fine
The SOPs those changes should have reached
HAZOP worksheets and registers, if you have them
The safeguard or interlock register, if one exists
02 · In days, you get
Changes that never reached a drawing, a procedure, or the C&E
SOPs that still describe the plant before the change
Safeguards on the drawing with no basis or no test record
Temporary changes past their end date
Recommendations open with no closure evidence
Each with the data behind it, and its page. A fixed fee. Your team confirms the findings.
The same model keeps working.
The check leaves behind a model of the unit with every change, safeguard, and procedure linked to its drawing and its page. The rest of the process safety work runs on it.
Raven is deployed in production — across operations, maintenance, HSE, and procurement.
