Oil & Gas
Process engineering, utilities design, HSE studies and independent technical reviews for upstream, midstream and downstream facilities across Saudi Arabia.
The opportunity.
Saudi Arabia's hydrocarbon sector remains the backbone of the national economy while simultaneously undergoing deep transformation — maximising production efficiency, reducing flaring, meeting escalating environmental compliance requirements and decarbonising operations in line with national net-zero commitments.
WPEC provides independent process engineering consultancy and technical review services across the upstream, midstream and downstream value chain. Our team is fluent in Aramco engineering standards, international codes (API, ASME, IEC) and the full range of HSE study methodologies — delivering technically rigorous, objective advisory that is free of contractor or equipment-supplier affiliations.
Capabilities.
Process Engineering
- Process simulation and mass/energy balance
- PFD and P&ID development
- Equipment sizing and data sheets
- Process design basis preparation
- Flare and relief system design
- Tie-in and modification engineering
Utilities & Balance of Plant
- Utility system design (steam, cooling water, compressed air, nitrogen)
- Electrical load schedule and SLD development
- Instrument and control system design
- Plant layout and plot plan review
- Brownfield modification and revamp engineering
- Energy efficiency and heat integration studies
HSE & Risk Studies
- HAZOP facilitation and documentation
- Quantitative risk assessment (QRA)
- Layer of protection analysis (LOPA)
- Fire and explosion consequence modelling
- Safety instrumented system (SIS) design
- Environmental compliance and flare reduction studies
Independent Technical Review
- Contractor design review and verification
- Technical due diligence for investors and lenders
- FEED and detailed design audit
- Commissioning procedure review
- Root-cause analysis and incident investigation
- Aramco compliance audit support
Our methodology.
Design Basis
Establishment of a comprehensive process design basis — feedstocks, product specifications, utility parameters and applicable codes — before any detailed engineering begins.
Process Simulation
Rigorous steady-state and dynamic process simulation to validate mass balance, equipment sizing and control system performance.
Safety Studies
Structured HAZOP sessions, consequence modelling and QRA to identify hazards and demonstrate that risk is as low as reasonably practicable.
Detailed Design
Full engineering deliverable package — P&IDs, equipment data sheets, plot plans, electrical SLDs and instrument loop diagrams — to Aramco and international standards.
Procurement Review
Vendor drawing review, material take-off validation, bid tabulation and technical clarification for major equipment and materials.
Commissioning
Pre-commissioning checklists, mechanical completion verification, loop checking and performance test support to ensure safe and efficient start-up.
Tools & software.
Aspen HYSYS / Plus
Process simulation and thermodynamic modelling
PHAST / SAFETI
Consequence modelling and quantitative risk assessment
AutoCAD / AVEVA
P&ID authoring and plant design management
API / ASME Codes
Pressure vessel, piping and safety system design standards
Primavera P6
Commissioning schedule and milestone tracking
PDMS / E3D
3D plant modelling and clash detection
Related services.
Have a project in mind?
Let's engineer it.
From feasibility to commissioning — our consultants partner with utilities, developers and government clients across the Kingdom.