Start with the constraint, not the equipment list.
Before sizing anything, I want to know what the existing facility cannot do: pressure, capacity, access, operability or schedule. That constraint becomes the design brief.
Independent consultancy · Bangkok, Thailand
I make complex facility projects buildable.
Hands-on process engineering and project leadership for upstream facilities, from concept and FEED through commissioning. I help operators, EPCs and package suppliers turn uncertain scopes into engineering that can be built, operated and handed over.
Choose your project lens
Choose a lens and I'll point you to the most relevant work.
Explore the ways I can help- 01Wellhead
- 02Choke
- 03Separator
- 04Gas · oil · water
- Engineering since
- 2006
- Project engagements
- 50+
- Project countries
- 12+
- HAZOPs led / supported
- 50+
Featured work
Selected facilities, with the constraints, engineering decisions and project-stage results behind them.
Wellpad Production Facility
Execution-ready FEED, including a Class 2 cost estimate, for added capacity without rebuilding the CPF. Surface Facilities Engineering Lead
Automated Modular Seawater Injection Unit
HAZOP-reviewed modular unit taken through FAT, offshore installation, commissioning and handover. Engineering & Project Manager
Hydrogen-from-Reservoir Concept with CO2 Capture
Vendor-informed surface-facility concept and Class 5 cost basis for the next development decision. Surface Facilities Engineering Lead
Modular EPFs for extra-heavy crude
A repeatable engineering basis adapted across four facilities, through fabrication, installation and commissioning. Engineering Lead
01
About
A career spent inside process plants and project rooms — designing, sizing, simulating, debottlenecking and delivering oil and gas processing facilities for operators and EPCs around the world.
I combine hands-on process engineering with multidisciplinary project leadership. That means moving between simulation, PFDs, P&IDs and equipment definition, and the vendor, interface, schedule and handover decisions that determine whether a facility can be built and operated. I began at Cameron Process Systems in the UK in 2006, moved to Thailand to lead engineering at Expro, and have worked independently from Bangkok since April 2020.
- Modular topsides
- MOPU
- Seawater injection
- Heavy-crude EPF
- Hydrogen & CCS
- HAZOP / SIL / LOPA
- Brownfield debottlenecking
- Owner's engineer
- Decommissioning
- Base Bangkok, Thailand
- Languages English · Spanish
- Member Society of Petroleum Engineers
Field notes
The engineering judgment behind the deliverables.
Three principles I carry from the plant, the project room and the commissioning site.
A package is only modular until the interfaces fail.
Skid layout, lifting, transport, tie-ins, controls, spares and operator access belong in the engineering conversation from the start, not at the end of design.
Commissioning is part of the design.
A technically correct package still has to start, run and be handed over. Procedures, training, FAT evidence and troubleshooting paths are delivery work, not paperwork after the fact.
02
Services
Support is shaped around the decision or delivery gap: an operator defining or assuring a development, an EPC closing an engineering workfront, or a package supplier taking a system from bid through FAT and commissioning.
Facility Definition & Process Engineering
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Development decisions
Concept selection, feasibility and FEED · basis of design · option evaluation · Class 4 and Class 5 estimating · execution-ready engineering packages
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Process design & safety
Steady-state and dynamic simulation · equipment sizing · PFDs and P&IDs · HAZOP, HAZID, LOPA and SIL · relief, blowdown, flare and gas-dispersion studies
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Packages & brownfield work
Modular topsides and skid packages · vendor-ready equipment definition · brownfield debottlenecking and field rejuvenation · operations troubleshooting · decommissioning · hydrogen and CCS integration
Project & Construction Management
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Project setup & controls
Project execution plans · scope definition · integrated schedules · resourcing · cost and risk control · change management · progress reporting
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Procurement & vendor delivery
Tender packages and RFQs · technical bid evaluation · vendor document review · contractor coordination · QA/QC oversight · FAT preparation and follow-up
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Construction, commissioning & handover
Construction and interface coordination · installation readiness · commissioning support · performance testing · operating documentation · handover and closeout
Owner's Engineer & Technical Assurance
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Independent review
FEED and detailed-design review · basis-of-design challenge · process and equipment review · vendor data and interface assurance
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Decision and risk support
Technical queries and design reviews · value engineering · option evaluation · operability and readiness review · delivery risk register
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Delivery readiness
Owner-side progress assurance · FAT and inspection support · installation and commissioning readiness · handover review · independent technical advice
Specialist assignments
Focused support when the problem has a name.
- Process safety & operabilityHAZOP · HAZID · LOPA/SIL · relief and blowdown · PSSR
- Commissioning & start-upFAT · installation support · troubleshooting · procedures · handover
- Brownfield & debottleneckingCapacity studies · revamps · tie-ins · MoC · shutdown constraints
- Cost estimation & option evaluationClass 4/5 estimates · option comparison · vendor-informed budgets
03
How I work
Three ways to engage, depending on what the work needs. Most start with a 30-minute call to scope the problem.
A discrete deliverable
A HAZOP, a debottlenecking review, a concept package, a Class 5 estimate. Defined scope, timeline and price agreed up front, with a report your investment decision-makers can use.
Plug into an active project
Engineering or Project Manager on a phase, a tender, or end-to-end. Time-and-materials with a clear handover plan, working from your offices or from Bangkok.
Independent technical assurance
Operator-side review of contractor engineering, vendor data, interfaces and delivery readiness. Available as defined work packages, time-and-materials support or a retainer aligned with the project pipeline.
From concept to commissioning — across all six project phases.
- Concept
- Feasibility
- FEED
- Detailed design
- Execution
- Commissioning
What to expect when we work together
- How long is a typical engagement?
- Anywhere from a one-week HAZOP review to a six-month FEED to an eighteen-month full delivery. Most fall in the 2–4 month range — a project phase or a discrete study.
- How do you charge?
- Fixed-fee for studies with a defined scope; time-and-materials for embedded engineering or owner's engineer roles; monthly retainer for long-running advisory. Day rates and total budgets agreed before any work starts.
- Where do you work from?
- Remote-first from Bangkok, with site work and time at client offices when the project needs it. Comfortable with offshore mobilizations and onshore CPF construction sites across APAC, the Middle East and the Americas.
- How is confidentiality handled?
- I routinely work under client NDAs and can put one in place before sensitive technical or commercial information is shared. Published case studies contain only information authorized for public use.
- What language are deliverables in?
- English by default. Spanish where the client's project documentation is Spanish — common for Latin American operators.
- How do most engagements start?
- After a 30-minute scope call, I send a concise proposal covering scope, deliverables, schedule, assumptions and commercial basis. Start dates depend on availability, contracting and access to the required project information.
Career background Selected experience and education
04
Experience
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2020 — Now Bangkok, Thailand
Engineering & Project Manager — Consultant
Front End Engineering Consultancy · Independent
Independent consultancy to operators and EPCs across Asia Pacific — process engineering and project management from concept and feasibility through FEED, detailed design, execution and commissioning. The work spans equipment sizing and simulation, relief and blowdown studies, HAZOP and HAZID, skid and modular package design, plant debottlenecking, field rejuvenation, and operations troubleshooting and audits.
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2018 — 2020 Bangkok, Thailand
APAC Production Product Line Manager
Expro Overseas Inc.
Shaped and ran the service-line strategy for APAC across Early Production Facilities, MOPUs and Production Enhancement. Owned the financial plan, growth roadmap and product mix, and acted as the regional product authority. Trained and supported sales and field service teams as their go-to engineering reference.
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2018 Dubai, UAE
Engineering Manager
Expro International Group
Stood up a new engineering and project management office in Dubai to support the group's tendering and execution across MENA. Recruited and mentored a team of lead engineers, directed tender and detailed-design work, and resolved cross-discipline technical issues as they came up.
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2013 — 2017 Bangkok, Thailand
Engineering Team Leader
Expro Overseas Inc.
Led the Project Engineering Team through concept, FEED and execution — driving integrated designs that hit safety, quality and operability targets. Coordinated cross-discipline work, set up engineering processes and procedures, and authored a number of the company's internal standards.
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2012 — 2013 Reading, UK
Senior Process Engineer — Consultant
Expro International Group
Rotated between the Expro UK and PTI Thailand offices on a portfolio of Early Production Facilities supplied to PDVSA, with regular site work at the client's offices in Maturin, Venezuela. Coordinated a multi-discipline team in Bangkok and owned the technical proposals, process engineering, simulation in Aspen HYSYS, Aspen Flare System Analyzer and FlareSim, and the client and vendor interface throughout.
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2006 — 2012 Rugby, UK
Process Engineer / Senior Process Engineer
Cameron Process Systems
Six years as a process engineer covering the full deliverable set — PFDs, P&IDs, line designation tables, datasheets, equipment lists and technical offers — plus the calculation work behind them: vessel and line sizing, blowdown, flare radiation and gas dispersion, PSV sizing, cause-and-effect diagrams, alarm and trip lists, bases of design, and control logic narratives.
05
Education
2017 — 2019
MSc, Decommissioning
University of Aberdeen
Two-year part-time MSc focused on the decommissioning of offshore structures and pipelines. Thesis on pipeline corrosion in the marine environment, comparing mechanisms and rates between the North Sea and the Gulf of Thailand — later published at SPE as paper 208470-MS.
2004 — 2005
MSc, Environmental Diagnostics
Cranfield University
One-year full-time MSc in environmental analysis and consulting. Thesis on developing an Electronic Nose for sewage treatment works, alongside the R&D team at Yorkshire Water (Bradford, UK) in partnership with UMIST.
1999 — 2004
M.Eng, Chemical Engineering
Polytechnic University of Valencia
Five-year full-time M.Eng. Coursework covered process design and safety, unit operations (absorption, evaporation, distillation), mechanical and instrument engineering, and multi-discipline engineering projects. Hands-on with Aspen HYSYS, CHEMCAD, MATLAB, AutoCAD and SOLIDWORKS.
Organizations supported through independent consultancy and previous engineering roles
Project archive Selected project history and engineering software
06
Selected projects
A selection of representative projects, not a complete engagement history. Roles range from Lead Process Engineer through Engineering Lead, Project Manager and Project Sponsor. Specifics and references on request, subject to client confidentiality.
Read the case studies in detail
2023
Wellpad Production Facility case study
Surface Facilities Engineering Lead
Matahio Energy
Onshore New Zealand
G6/48 Rossukon MOPU Topsides
Engineering Lead
Production Solutions Asia
Offshore Thailand
D-12 MOPU Topsides
Engineering Lead
Antelopus Energy
Offshore India
2022–2023
Hydrogen-from-Reservoir Concept with CO2 Capture case study
Surface Facilities Engineering Lead
Vedra Hydrogen Ltd
Onshore France
2021
Compact Pipeline Flushing Package
Engineering & Project Manager
Chevron Thailand E&P
Offshore Thailand
Automated Modular Seawater Injection Unit case study
Engineering & Project Manager
Chevron Thailand E&P
Offshore Thailand
Automated Well Unloading Package
Engineering & Project Manager
Chevron Thailand E&P
Offshore Thailand
2020
100,000 BPD Seawater Injection Topside case study
Lead Process Engineer
Trendsetter
Offshore Gulf of Mexico
Semi-Automated Well Unloading Package
Engineering Lead
Chevron Thailand E&P
Offshore Thailand
2019
SF-30 6,000 BPD Seawater Modular Injection System
Engineering Lead
Hibiscus Petroleum
Offshore Malaysia
B80 MOPU Topsides
Project Sponsor
HOEC
Offshore India
Ingenium II Switchgear & Control System Modules
Project Sponsor
KrisEnergy
Offshore Cambodia
2018
Produced Water Deoiling Hydrocyclone Package
Project Manager
Mubadala Petroleum
Offshore Thailand
Produced Water Compact Flotation Package
Project Manager
Mubadala Petroleum
Offshore Thailand
2017
Bulk Water Removal System
Project Manager
KrisEnergy
Offshore Thailand
2016
35 MMSCFD Modular Gas Processing Facility
Engineering Lead
HOEC
Onshore India
2013–2015
50,000 BPD Total-Blend Modular EPF case study
Engineering Lead
PetroSinovensa · 2015
Onshore Venezuela
50,000 BPD Total-Blend Modular EPF
Engineering Lead
PetroJunin · 2014
Onshore Venezuela
50,000 BPD Total-Blend Modular EPF
Engineering Lead
PetroMiranda · 2014
Onshore Venezuela
50,000 BPD Total-Blend Modular EPF
Engineering Lead
PetroIndependencia · 2013
Onshore Venezuela
15,000 BPD / 5 MMSCFD Modular EPF
Lead Process Engineer
Caracal Energy · 2013
Onshore Chad
2012
Extended Well Testing Package
Lead Process Engineer
Aker Solutions
Offshore Africa
20 MMSCFD Modular Gas Early Production Facility
Lead Process Engineer
Victoria Oil & Gas
Onshore Cameroon
Earlier project history at Cameron Process Systems (2006 — 2012) is available on request — vessel and line sizing, flare and PSV design, gas dispersion studies, and full PFD and P&ID development for upstream operators worldwide.
07
Tools and expertise
Process disciplines
Software
Project management
Process equipment · Interactive model
The three-phase separator
Most upstream trains start here: slow the flow down, let gravity split gas, oil and water, and send each stream on at the right pressure. I size these vessels, specify their internals, rate them against changing well conditions, and chair the HAZOPs that keep them safe.
- Gas
- Oil
- Water
Reference geometryHorizontal separator · not to scale
08
Technical writing
Practical notes on the design and safety decisions behind reliable upstream facilities, from separator sizing and dynamic simulation to HAZOP planning and FEED definition.
TEG Gas Dehydration — Designing the Contactor and Regenerator
How contactor sizing, lean TEG concentration, regeneration and heat integration determine water dewpoint performance.
HAZOP vs HAZID: Choosing the Right Study for Your Project
Where each hazard study fits in the project lifecycle, and what gets missed when they are treated as interchangeable.
Dynamic Process Simulation: When Steady-State Isn't Enough
When a dynamic model is worth the effort, and what it reveals about trips, blowdown, controls and abnormal operation.
How to Size a Three-Phase Production Separator
A practical walk-through of gas capacity, liquid retention and water droplet settling for upstream separators.
Running an Effective HAZOP: Ten Lessons from the Field
Field-tested lessons for turning a HAZOP from a compliance exercise into a useful process safety review.
More articles at Front End Engineering
Additional notes on pumps, flare sizing, hydrates, amines, compressors, property packages and FEED studies.
09
Publication
Pipeline Decommissioning: Comparative Study of Pipeline Corrosion in the North Sea and the Gulf of Thailand
Paper SPE-208470-MS
Read on OnePetro
10
Contact
Need to define a facility concept, resolve a process constraint or strengthen project delivery? Let's discuss the scope.
Most enquiries get a reply within one working day, Bangkok time.
Availability New-project enquiries welcome. Timing is confirmed after a scope and availability review.
Request my current CV- Signal feecasia.77
- Based in Bangkok, Thailand
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