Services
Engineering Services
for Upstream Oil & Gas
Nine specialist disciplines — from FEED studies and process simulation to HAZOP facilitation, EC&I engineering, brownfield debottlenecking, and full project management. All delivered directly by our principal consultants.
INLET PRESSURE
42.3
bar g
SEPARATOR TEMP
85.2
°C
GAS FLOW
12.4
MMscfd
OIL RATE
1 248
m³/h
SIL Loops — IEC 61511 Status
01
Conceptual & FEED Studies
Front End Engineering Design studies that define project scope, cost, and schedule with the accuracy needed for investment decisions.
Our FEED studies provide operators and investors with a robust technical basis for project sanctioning. We take your project from process concept through a fully-defined FEED package — including process design basis, mass and energy balances, equipment lists, and preliminary cost estimates.
We have delivered FEED studies for onshore production facilities, offshore platforms, MOPU topsides, FPSOs, and early production systems across Southeast Asia, the Middle East, West Africa, and beyond. For offshore and floating facilities, our studies include equipment weight and space allocation sufficient for topsides design criteria and structural interface documentation. Our approach is to minimise unnecessary conservatism while ensuring every design decision is justified by sound engineering.
Standards: API, ASME, ISO, NORSOK, local regulatory requirements.
Discuss a Conceptual & FEED Studies engagementKey Deliverables
- Block Flow Diagrams (BFDs)
- Process Flow Diagrams (PFDs)
- Piping & Instrumentation Diagrams (P&IDs)
- Process Design Basis
- Heat and Material Balances (H&MBs)
- Equipment Datasheets and Lists
- Process Narrative
- Weight and Space Estimates (offshore)
- Preliminary Capital Cost Estimate
- Plot Plan and Equipment Layout
02
Detailed Engineering
Full detailed engineering packages ready for procurement and construction — P&IDs, line lists, datasheets, and cause-and-effect matrices.
From FEED approval to IFC, our detailed engineering service covers all process and piping disciplines. We work with AutoCAD and standard industry tools to produce engineering documents that meet project specifications and applicable standards.
Our principal consultants have executed detailed engineering packages for a wide range of facility types — from compact skid-mounted early production units to multi-train gas processing plants. We include 3D model review and systematic vendor document review as standard deliverables, ensuring that fabricated and procured equipment matches the process design intent before it leaves the workshop.
Standards: Client specifications, API 14C, ISA 5.1, ISO 10418.
Discuss a Detailed Engineering engagementKey Deliverables
- IFC P&IDs (AutoCAD)
- Line Lists and Pipe Specs
- Equipment Design Calculations
- Instrument Index and Datasheets
- Cause-and-Effect (C&E) Matrices
- Electrical Load Lists
- Utility Flow Diagrams (UFDs)
- Engineering Flow Diagrams (EFDs)
- Vendor Document Review
- Pipe Stress Analysis Input
03
Process Simulation
Steady-state and dynamic process modelling — equipment sizing, relief load studies, ESD transient analysis, and operational troubleshooting.
Process simulation is central to everything we do. Our consultants have extensive experience building and validating steady-state and dynamic simulation models for upstream and midstream facilities using industry-standard process simulators.
Where a steady-state model answers sizing questions, dynamic simulation answers operational ones — emergency shutdown transients, control valve sizing, slug flow behaviour, and depressuring analysis. We use dynamic simulation to validate ESD logic, confirm relief system behaviour under worst-case transient conditions, and support control system design. Simulation models are delivered with full source files, not just reports, so clients can run their own sensitivity cases.
Standards: API 520, API 521, API 526, API 14E, NORSOK P-001.
Discuss a Process Simulation engagementKey Deliverables
- Steady-State Process Models
- Dynamic Simulation Models
- Equipment Sizing Calculations
- Heat Exchanger Design and Rating
- Separator Sizing and Performance
- Compressor Train Analysis
- Flash and Phase Equilibria Studies
- Flare and Relief Load Studies
- Emergency Depressuring Analysis
- Process Optimisation Reports
04
Safety Reviews
HAZID, HAZOP, ATEX/IECEx area classification, bow-tie analysis, and full Functional Safety Management lifecycle to IEC 61511.
Process safety is non-negotiable. Our consultants have led and participated in 50+ HAZID and HAZOP studies across onshore and offshore facilities globally. We provide independent facilitation and comprehensive documentation — with full action registers issued within 48 hours of workshop close.
For Safety Instrumented Systems, we deliver the complete Functional Safety Management lifecycle to IEC 61511 — from SIL classification and LOPA through Safety Requirements Specification development, proof test procedure design, and Functional Safety Assessment sign-off. Our principals hold deep SIS lifecycle credentials across multiple geographies and facility types. We also provide electrical area classification studies to ATEX/IECEx and bow-tie analysis for major accident hazard scenarios.
Standards: IEC 61511, IEC 61508, IEC 60079, API 14C, API 14J, NORSOK Z-013.
Discuss a Safety Reviews engagementKey Deliverables
- HAZID Study Report
- HAZOP Study Report and Action Register
- LOPA Worksheets
- SIL Determination Report
- Safety Requirements Specification (SRS)
- Functional Safety Assessment (FSA)
- Bow-Tie Analysis
- Electrical Area Classification (ATEX/IECEx)
- Risk Register
- What-If Analysis
- Pre-Startup Safety Review (PSSR)
05
Project Management
End-to-end project and construction management for fast-track oil & gas campaigns across six continents.
Our project management capability spans all phases — from project setup and engineering scope definition, through procurement and contracting, to construction and handover. Our project management principals bring 25+ years of field experience across six continents, with a track record of managing international contractors, complex supply chains, and multi-discipline engineering teams from concept through operational handover.
We understand the pressures of fast-track projects and the commercial realities of operating budgets. Our approach is pragmatic — focused on delivering to schedule and budget without creating unnecessary risk. We integrate directly with client teams, act as owner's engineer when required, and maintain clear cost and schedule accountability throughout.
Standards: PMI PMBOK, client project management systems.
Discuss a Project Management engagementKey Deliverables
- Project Execution Plan (PEP)
- Project Schedule (Primavera / MS Project)
- Procurement Strategy and Tender Documents
- Vendor Evaluation and Selection
- Construction Management and Supervision
- Cost Reporting and Change Management
- Owner's Engineer Services
- Project Closeout Report
06
Commissioning & Start-up
Field commissioning and start-up support for new facilities, plus Pre-Startup Safety Reviews and operating procedure development.
Commissioning is where engineering decisions become operational reality. Our consultants provide onsite commissioning support for new facilities, ensuring the handover from construction to operations is safe, systematic, and well-documented. We develop start-up procedures that reflect how the plant actually behaves — not generic templates copied from another project.
We provide Pre-Startup Safety Reviews (PSSR) as a formal deliverable, confirming that all HAZOP actions are closed, safety systems are verified, and operating procedures are in place before hydrocarbon introduction. For greenfield projects, a formal PSSR is a regulatory requirement in many jurisdictions and a contractual obligation in most operator management systems.
Standards: API RP 14C, IEC 61511 (SIS commissioning and proof test requirements), client commissioning management system procedures, applicable NORSOK operational standards.
Discuss a Commissioning & Start-up engagementKey Deliverables
- Commissioning Procedures
- Pre-Commissioning Punch Lists
- System Completion Dossiers
- Start-up Procedures
- Pre-Startup Safety Review (PSSR)
- Operating Manual Review
- Performance Test Procedures
- Handover Documentation
07
EC&I Engineering
Full Electrical, Control & Instrumentation engineering — from control philosophy and instrument selection through SIS design, area classification, and SCADA architecture.
Electrical, Control & Instrumentation engineering is a principal discipline that is often under-resourced in boutique consultancies. At FEEC it is a core capability, with 30+ years of EC&I experience across greenfield design, brownfield modifications, and the full Safety Instrumented System lifecycle to IEC 61511 — delivered directly by a principal consultant.
Our EC&I service covers the complete instrumentation scope — from process measurement philosophy and control loop design through instrument datasheets, hook-up drawings, and cable schedules. On the electrical side we deliver area classification studies, load lists, and single-line diagrams, interfacing with specialist vendors for HV equipment and SCADA systems. We work with operators and EPCs equally — as lead EC&I discipline or as independent reviewer of another firm's design.
Standards: IEC 61511, IEC 60079, ISA 5.1, ISA 18.2, NORSOK E-001, IP15.
Discuss a EC&I Engineering engagementKey Deliverables
- Control Philosophy Document
- Instrument Index and Datasheets
- Cause and Effect (C&E) Matrices
- Instrument Hook-up Drawings
- Cable Schedules and Tray Layouts
- Electrical Area Classification (ATEX/IECEx)
- Electrical Load List
- Single-Line Diagrams (SLDs)
- SCADA Architecture and I/O Lists
- Safety Instrumented System (SIS) Design to IEC 61511
08
Brownfield Engineering & Debottlenecking
Capacity optimisation, revamp studies, and modification engineering for existing facilities — with the practical perspective of engineers who have operated them.
Brownfield engineering demands a different mindset from greenfield design. Existing facilities have constraints, quirks, and operational histories that govern what is feasible — and you cannot fully understand those constraints without experience on the operations side. Our team includes principals who spent the majority of their careers within major oil companies before transitioning to consulting, bringing a genuine operator perspective that is applied to every brownfield study we undertake.
Our brownfield service covers capacity debottlenecking, process revamps, life extension studies, and modification engineering packages. We identify constraints, evaluate options with clear cost-benefit framing, and produce modification packages that can be executed safely against an operating facility. We also support Management of Change (MoC) processes — including brownfield HAZOP and operability reviews for proposed modifications.
Standards: API RP 14C, API RP 580 (risk-based inspection), client HSE and Management of Change procedures, NORSOK Z-008.
Discuss a Brownfield Engineering & Debottlenecking engagementKey Deliverables
- Capacity and Debottlenecking Study
- Process Revamp Engineering Package
- Modification Design Basis and P&IDs
- Management of Change (MoC) Support
- Brownfield HAZOP / Operability Review
- Life Extension Assessment
- Operating Manual and Procedure Reviews
- Performance Benchmarking Report
- Shutdown and Turnaround Planning Support
09
Technical Due Diligence & Independent Review
Independent engineering assessments for asset acquisition, project sanction, and lender requirements — delivered by senior engineers with operator and EPC experience on both sides of the table.
When the stakes are high, an independent second opinion is not a luxury — it is a discipline requirement. We provide technical due diligence assessments for upstream and midstream asset acquisitions, reviewing process design, production assumptions, equipment condition, and operating cost basis against industry norms and our own field experience.
For project sanctioning, we offer independent peer review of FEED packages — identifying technical risks, challenging assumptions, and confirming that the design basis is fit for purpose before capital is committed. Our team has sat on both sides of these reviews: as project engineers whose work has been reviewed, and as independent assessors doing the reviewing. We understand what a credible technical review looks like and what it is trying to achieve.
Standards: API RP 14C, API 521, NORSOK Z-013, SPE PRMS (reserves and resources assessments), applicable lender and operator technical standards.
Discuss a Technical Due Diligence & Independent Review engagementKey Deliverables
- Technical Due Diligence Report
- Asset Acquisition Assessment
- Independent FEED Peer Review
- Design Basis Audit
- Production Forecast Review
- OPEX/CAPEX Reasonableness Assessment
- Technical Risk Register
- Lender's Technical Advisor Report
- Expert Opinion and Dispute Support
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