Process

Detailed Summary of Work Done by the Process Department in the Oil & Gas Industry

The Process Department is responsible for designing, analyzing, optimizing, and ensuring the safe and efficient operation of oil and gas production and processing facilities. It converts production requirements into practical process designs while ensuring compliance with safety, environmental, and economic objectives.

1. Process Design and Development

• Develop process philosophy
• Select suitable processing technologies
• Define plant operating conditions
• Prepare process design basis
• Perform process calculations
• Determine production capacities
• Optimize energy consumption
• Evaluate process alternatives

2. Process Simulation

• Oil and gas separation
• Gas sweetening
• Dehydration
• Compression
• Stabilization
• Distillation
• Refrigeration systems
• LNG processes
• Water treatment
• Utility systems

3. Material Balance

• Feed composition
• Product yield
• Waste generation
• Gas production
• Water production
• Chemical consumption
• Utility requirements
• Material Balance Report
• Stream Summary

4. Heat Balance

• Heating duty
• Cooling duty
• Steam consumption
• Cooling water requirements
• Fuel gas consumption
• Heat recovery opportunities

5. Process Flow Diagrams (PFD)

• Equipment
• Stream numbers
• Flow rates
• Temperatures
• Pressures
• Utility requirements
• Major control loops

6. Piping and Instrumentation Diagrams (P&ID)

• Equipment
• Valves
• Instrumentation
• Control loops
• Safety devices
• Process connections
• Utility connections

7. Equipment Sizing

• Separators
• Heat Exchangers
• Columns
• Reactors
• Knockout Drums
• Scrubbers
• Filters
• Pumps
• Compressors
• Air Coolers

8. Equipment Datasheets

• Design pressure
• Design temperature
• Capacity
• Material requirements
• Operating conditions
• Mechanical design data
• Utility connections

9. Line Sizing

• Flow velocity
• Pressure loss
• Erosion
• Noise
• Two-phase flow
• Pump suction conditions
• Line Sizing Report

10. Pressure Drop Calculations

• Pipelines
• Valves
• Heat Exchangers
• Filters
• Compressors
• Flow Meters

11. Hydraulic Analysis

• Liquid systems
• Gas systems
• Two-phase systems
• Pump networks
• Pipeline systems

12. Relief System Design

• Identify overpressure scenarios
• Calculate relief loads
• Size safety valves
• Size rupture discs
• Design flare headers
• Design flare knock-out drums
• Design flare stacks

13. Flare System Design

• Relief load calculations
• Flare network hydraulics
• Radiation analysis
• Backpressure analysis
• Flare tip selection

14. Utility System Design

• Steam
• Cooling water
• Hot oil
• Nitrogen
• Instrument air
• Plant air
• Fuel gas
• Potable water
• Fire water
• Demineralized water

15. Chemical Injection Design

• Corrosion inhibitors
• Scale inhibitors
• Demulsifiers
• Methanol
• MEG
• TEG
• Oxygen scavengers
• Biocides

16. Process Safety Studies

• HAZID
• HAZOP
• SIL
• LOPA
• Bow-Tie Analysis
• Risk Assessment
• Explosion studies
• Fire studies

17. Cause and Effect Matrix

• High pressure shutdown
• High temperature shutdown
• Gas leak response
• Fire detection
• Emergency shutdown (ESD)

18. Control Philosophy

• Plant operating sequence
• Startup
• Shutdown
• Emergency shutdown
• Interlocks
• Alarms
• Operator actions

19. Operating Philosophy

• Normal operation
• Startup
• Shutdown
• Turndown operation
• Maintenance mode
• Emergency operation

20. Environmental Compliance

• Minimizing flaring
• Reducing emissions
• Improving energy efficiency
• Managing produced water
• Reducing waste
• Supporting carbon reduction initiatives

21. Energy Optimization

• Heat integration
• Heat exchanger network optimization
• Waste heat recovery
• Steam optimization
• Compressor optimization
• Pump optimization

22. Debottlenecking

• Removing process restrictions
• Improving hydraulics
• Modifying equipment
• Optimizing operating conditions

23. Process Troubleshooting

• Low production
• High pressure drop
• Foaming
• Flooding
• Poor separation
• Excessive vibration
• High temperatures
• High energy consumption
• Off-spec products

24. Plant Commissioning Support

• Review construction completion
• Verify equipment
• Support leak testing
• Assist with flushing and cleaning
• Support startup
• Monitor plant performance
• Optimize operating conditions

25. Performance Monitoring

• Production rate
• Recovery efficiency
• Energy consumption
• Chemical consumption
• Equipment efficiency
• Product quality
• Plant availability
• Flare losses

26. Brownfield Modification Projects

• Process evaluation
• Capacity assessment
• Equipment checks
• Process simulations
• Revamping existing facilities
• Supporting Management of Change (MOC)

27. Major Deliverables

• Process Design Basis (PDB)
• Process Design Criteria (PDC)
• Process Description
• Process Philosophy
• PFDs
• P&IDs
• Utility Flow Diagrams (UFDs)
• Material Balance
• Heat Balance
• Stream Summary
• Equipment Datasheets
• Line List
• Valve List
• Utility Summary
• Relief Valve Datasheets
• Flare Report
• Hydraulic Calculations
• Process Simulation Files
• Cause & Effect Matrix
• Operating Manuals
• Startup and Shutdown Procedures
• Design Calculation Reports

28. Coordination with Other Engineering Disciplines

• Mechanical Engineering
• Piping Engineering
• Instrumentation & Control
• Electrical Engineering
• Civil & Structural Engineering
• Safety Engineering
• Project Engineering
• Operations & Maintenance

Typical Process Workflow

• Collect feed and operating data.
• Develop the process design basis.
• Perform material and heat balance calculations.
• Build and validate process simulation models.
• Prepare PFDs and stream summaries.
• Size process equipment and pipelines.
• Develop P&IDs and process control philosophy.
• Design relief, flare, and utility systems.
• Participate in HAZOP and other safety reviews.
• Issue equipment datasheets for procurement.
• Support detailed engineering, commissioning, startup, and performance optimization.