An Operations Manual provides structured, detailed operational information for the safe, efficient, and consistent running of process plant systems, including those found in oil & gas refineries, petrochemical plants, gas treatment plants, and other large-scale industrial facilities, such as food processing facilities. These manuals describe how each system works, how it is controlled, and how it fits into the wider plant environment.
Orchid produces Operations Manuals that support both day-to-day operating requirements and the needs of multi-discipline teams working in demanding industrial environments.
What This Document Is For
An Operations Manual provides the operational foundation for complex processing facilities by documenting:
- How systems are designed to function
- How operators should run those systems under varying plant conditions
- The relationships between process units, utilities, safety systems, and shutdown philosophies
- The information required to familiarise personnel with equipment, layouts, and operational boundaries
In process plants and refineries, this ensures safe operation, regulatory compliance, reliability, and consistent shift-to-shift performance.
Who It’s For
- Control room operators
- Field operators
- Operations supervisors
- Process and reliability engineers
- HSE teams
- New personnel requiring system familiarisation
Why It Matters in Oil & Gas and Process Facilities
In high-hazard, continuous-production environments such as refineries and petrochemical plants, a well-developed Operations Manual:
- Ensures operators understand system functions and process flow
- Reduces operational errors and unplanned shutdowns
- Supports safe execution of startup, shutdown, and upset responses
- Standardises operations across all shifts and crews
- Helps new personnel become competent quickly
- Provides vital context for process safety and emergency planning
Typical Contents of an Operations Manual (Process Industry Aligned)
Orchid’s Operations Manuals often cover large, complex systems divided into multiple volumes. The following structure reflects the format used in an oil company project and is directly based on Orchid’s published content.
Volume 1 — Introduction
Includes:
Overview of the facility (e.g., refinery, offshore platform, processing plant)
Field development background and production philosophy
System and equipment locations
Basic principles of control and shutdown strategy
This provides essential plant context for both new and experienced operators.
Volume 2 — Oil Production Systems (or Equivalent Primary Process Unit)
Covers operating principles and control of all systems related to:
Hydrocarbon production
Processing and stabilisation
Export systems
In a refinery or petrochemical facility, this section corresponds to major process units such as:
Crude distillation
Hydrotreating
Catalytic reforming
Fluid catalytic cracking
Alkylation
Gas recovery and treating units
Volume 3 — Gas Processing & Produced Water Treatment
Describes:
Gas processing and export systems
Produced water treatment and disposal systems
Chemical injection systems supporting these processes
In refining terms, this aligns with gas plant units, amine units, sulphur recovery units, and flare systems.
Volume 4 — Seawater Injection System (or Other Utility Support Systems)
While the example system is seawater injection, the equivalent in a refinery or process plant includes:
Boiler feedwater treatment
Cooling water systems
Utility water systems
High-pressure steam networks
Firewater systems
The manual covers operating principles, control systems, and chemical injection for these systems. [orchidinfo.co.uk]
Volume 6 — Utility Systems
These volumes describe the principles of operation and control for plant-wide utility systems, such as:
Steam systems
Instrument and plant air
Nitrogen supply
Electrical generation and distribution
HVAC
Fuel gas systems
Condensate and flare systems
Supporting Information Included in Operations Manuals
Operations Manuals produced by Orchid also include:
- Equipment lists
- Location plans
- P&IDs
- Package general arrangements (GAs)
- Vessel and equipment cross-sections
These visuals and data sets are essential for refinery and processing-plant operators who need to understand system layout, access, and equipment interdependencies.
Delivery Options
Operations Manuals may be supplied as:
Traditional printed manuals (including durable plastic-page copies for field use)
Structured, indexed PDF files
These formats are particularly useful for large refineries and multi-unit process sites with distributed teams.
Applicable Standards
- ISO / IEC / IEEE 82079-1 – Preparation of Information for Use
- ISO 20607 – Safety of Machinery: Instruction Handbook
- ISO 12100 – Safety of Machinery: Risk Assessment and Risk Reduction
- ISO Technical Product Documentation Standards (ISO 01.110 Series)
How We Work
Orchid develops Operations Manuals for process plants by:
- Reviewing system P&IDs, SLDs, engineering documentation, and design intent
- Capturing detailed operational requirements across all process and utility systems
- Creating clear descriptions, operating principles, and system-specific procedures
- Organising information logically for both control-room and field operators
- Delivering manuals that integrate with training programmes and other operational documents
Orchid can write Operations Manuals for any process-industry installation, from individual units to large integrated refinery complexes.
Next Steps
To discuss an Operations Manual tailored to your refinery or process plant—or to request a quotation—please contact the Orchid team via our standard enquiry channels.
Other Manual Types can be seen here.
