Plot Plan
A plot plan is the EPC engineering deliverable that shows the overall site layout of a process plant including equipment, units, buildings, roads, fire-water systems, electrical substations, and battery limits. Plot plans are the foundation of plant layout decisions, inter-distance compliance per OISD 118 / Petroleum Rules 2002, and emergency response planning. Every greenfield project produces a plot plan as a Day 1 engineering deliverable.
What is Plot Plan in full?
A plot plan is the site layout drawing showing the overall plant configuration: major equipment groups, process units, utility units, offsites, storage tanks, fire-water system, electrical substations, control rooms, administration buildings, parking, roads, drainage, and battery limit boundaries. Plot plans are produced by civil and plant layout disciplines during early engineering phase (FEED and detailed engineering) and inform inter-distance compliance per OISD 118 / Petroleum Rules 2002 Third Schedule, fire-water capacity calculation, emergency response routing, and CCOE licence packaging. See the CCOE Tank Farm standard and the OISD 118 standard for the regulatory inter-distance framework.
What context and detail applies to Plot Plan?
Plot plan content
A typical plot plan shows: equipment groups at scale (tanks, drums, columns, exchangers, pumps), process unit boundaries, utility unit boundaries, fire-water system (hydrants, monitors, ring main, fire-water tank), electrical substations and switchyards, control rooms and equipment shelters, administration buildings, parking and laydown areas, roads and access routes, drainage systems, battery limit fences, and emergency response routing.
Plot plan and inter-distance
Plot plan dimensions drive inter-distance compliance per OISD 118 Chapter 3 and Petroleum Rules 2002 Third Schedule. Minimum separation distances apply tank-to-tank, tank-to-equipment, tank-to-boundary, and tank-to-public-road. Compliance verification is a major plot plan engineering activity. Pathnovo automates the inter-distance compliance table from plot plan dimensions.
Plot plan lifecycle
Plot plans go through revisions in the EPC project lifecycle similar to P&IDs: IFR (Issued For Review), IFA (Issued For Approval), IFC (Issued For Construction), AFC (As-Built). Plot plan revisions during detailed engineering drive downstream impact on piping isometric routing, electrical cable routing, fire-water sizing, and emergency response plan.
How is Plot Plan used in EPC projects?
- 01
Every greenfield refinery, petrochemical plant, fertiliser plant, and gas processing facility produces a plot plan as a foundational engineering deliverable at FEED and detailed engineering stages.
- 02
Indian PSU refineries maintain plot plans across 8-20 process units per complex. Plot plan revisions during brownfield revamp drive downstream piping and cable routing impact.
- 03
CCOE Form XIV licence application requires plot plan with inter-distance compliance table. Pathnovo's PESO compliance software automates the inter-distance table from plot plan dimensions.
- 04
Multi-EPC mega-projects require coordinated plot plan across multiple EPC contractors. Battery limit fences and interface routing require multi-party plot plan reconciliation.
- 05
Brownfield revamp projects start from existing plot plan baseline and add new modification scope. The reconciliation between existing and new plot plan drives downstream engineering effort.
How does Pathnovo handle Plot Plan?
Pathnovo's PESO compliance software automates inter-distance compliance from plot plan dimensions for CCOE Form XIV licence packaging. Combined with the Indian EPC compliance bundle, the workflow produces inspector-ready documentation packs covering plot plan, inter-distance table, and HAZOP closure for MoPNG and PNGRB review.
Frequently Asked Questions
What is a plot plan?
A plot plan is the EPC engineering deliverable showing the overall site layout of a process plant: major equipment groups, process units, utility units, offsites, storage tanks, fire-water system, electrical substations, control rooms, roads, and battery limits. Plot plans inform layout decisions, inter-distance compliance, and emergency response planning.
What does a plot plan show?
A plot plan shows equipment groups at scale, process unit boundaries, utility unit boundaries, fire-water system, electrical substations and switchyards, control rooms, administration buildings, parking, roads, drainage, battery limit fences, and emergency response routing. The drawing is to scale with dimensions enabling inter-distance compliance verification.
How does plot plan relate to OISD 118?
Plot plan dimensions drive inter-distance compliance per OISD 118 Chapter 3 and Petroleum Rules 2002 Third Schedule. Minimum separation distances apply tank-to-tank, tank-to-equipment, tank-to-boundary, and tank-to-public-road. Plot plan compliance verification is a major engineering activity and CCOE licence requirement.
When is the plot plan produced?
Plot plans are produced during FEED and early detailed engineering phase. The plot plan informs subsequent equipment layout, piping isometric routing, electrical cable routing, and fire-water capacity calculation. Plot plan revisions through IFR, IFA, IFC, AFC track the project lifecycle.
Can Pathnovo automate inter-distance compliance?
Yes. Pathnovo's PESO compliance software automates inter-distance compliance from plot plan dimensions for CCOE Form XIV licence packaging. The product produces inspector-ready documentation packs covering plot plan, inter-distance table, and HAZOP closure.
Related Pages
PESO Compliance Software
Inter-distance compliance automation from plot plan dimensions.
CCOE Tank Farm Standard
CCOE licence requirements driven by plot plan.
OISD 118 Standard
Layout and inter-distance standard.
Indian EPC Compliance Bundle
Unified compliance with plot plan-driven inter-distance.
Engineering Document Intelligence
Plot plan extraction and structured data output.
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