Sivakumar Thangavel

22 Plus years of design experience in Pre -FEED (Feasibility & Conceptual studies), FEED & EPC projects for Offshore / Onshore Oil and Gas (Greenfield and Brownfield projects), Refineries and Petrochemical Projects. Worked with Clients (SHELL & Reliance), Engineering Consultancies & EPC (Foster Wheeler, Petrofac, Worley, Aibel, KBR). Currently designated as Front-End Project Manager in Serikandi Oilfield Services, Brunei.

Executed

Pre FEED (Feasibility & Conceptual studies), FEED and EPC projects for offshore and onshore projects, including medium to highly complex brownfield developments, as well as renewable projects.

Front End Project Manager - SERIKANDI OILFIELD SERVICES SDN BHD – ENGINEERING DESIGN SERVICES - Brunei

(2025-07)

Client: Brunei Shell Petroleum (BSP). BSP Front End Design Services (FEDS)Contract – Offshore / Onshore / LNG (Greenfield and Brownfield Projects).

Headline Size: 100$ to 250 $ SGD, Team Matrix: 30, Leading Proposal team for Tender/RFQ.

Offshore / Onshore Projects Support to BSP: Development of well Tie in Projects, Asset Late life study, Asset production Optimization study, Hydrocarbon Maturation Projects, Process Specialist Studies.

Client: Brunei Liquefied Natural Gas (BLNG). BLNG Engineering Design Services (EDS)Contract –Onshore / LNG (Greenfield and Brownfield Projects).

Headline Size: 10$ to 100 $ SGD, Team Matrix: 12.

Project Support to BLNG: Fuel Gas Recovery, Process optimization, Flare Rationalization study

• Support client to prepare Pre ETSR scope of work (scope definition)
• Lead feasibility, concept selection, pre-FEED and FEED studies.
• Define project scope, Basis of Design, and execution strategies.
• Coordinate and integrate multidisciplinary engineering inputs.
• Lead option selection, value engineering, and technical risk assessments.
• Manage cost estimates, schedules, and project economics.
• Interface with operations, asset teams, management, and external stakeholders.
• Ensure compliance with international standards and operator-specific practices.
• Lead project design reviews, safety reviews, and assurance activities.

Technical Advisor - KBR Engineering & Construction Ind Pvt Ltd. - Chennai

(2024-04 - 2025-07)

AMUFERT FERTILIZER PROJECT (PMC Process Lead). Responsible for executing scope of Process Engineering activities. Reviewed & ensured all deliverables are aligned with company and client procedures. PMC Process lead lead for AMUFERT FERTILIZER PROJECT.

One Ammonia

Trains (Licensor KBR).

One Urea

Trains (Licensor Toyo). As Lead engineer, responsible for executing scope of Process Engineering activities. Reviewed & ensured all deliverables are aligned with company and client procedures. Lead a team to perform value improvement studies and FEED optimisation study to assess the technical feasibility, impact of CAPEX & OPEX and safety risk concerns.

• SUMITOTO – Mechanical Energy storage comparison study
• Exxon Mobil - FPSO Kiz A and B Life Extension Project in Angola
• Exxon Mobil - Proposal for Strathcona Refinery REVAMP– Phase 1 scope
• Exxon Mobil - ANTWERP CENTER FEED DEVICE (ACFD) Project
• Exxon Mobil- IOL CCS project – Canada
• Total Energies – PreFEED for LNG project

Senior Concept Engineer - BRUNEI SHELL PETROLEUM. - Brunei

(2020-08 - 2024-04)

Concept Lead for CP07 Fuel Gas Upgrade project Phase1 &2, as part of east brownfield portfolio with project headline size of 75 mln BND leading a team of 16-20 multi discipline engineers. East Integrated project / Shell| Concept | BSP- Brunei. Lead Concept engineer for East Integrated Project (EIP) to install New Compressor at CP07 Complex (headline size 260mlnBND and team matrix with 25 engineers).

SPM2 project / Shell| Concept | BSP- Brunei. Concept engineer for SPM2 Replacement Project as technical support through various stages of project & headline size of 75 mln BND. Supported minor projects (CWDP01 cascade projects, CWJJ03 sump pump replacement) and WRFM projects (CPCX10 free flow, MPFM replacement, PRP projects, Safeguarding projects, flare upgrade) on East and west team to evaluate stranded opportunities and business case and successfully completed Basis for Design.

• Gather CP07 fuel gas system issues, possible root cause and organized opportunity framing workshop with project team.
• Organized OFW, CCID workshop and identified short- and long-term solutions for mitigating the issues with the support of project team
• Integrated multidiscipline surface scope, cost & schedule with Project services.
• Delivered Technical Feasibility & Concept selection report and attended ITR review and VAR2.0.
• Demonstrated Economical Feasibilities of the project and delivered Basis for Design
• Evaluated development options (Technical and Economics) for installing new compressors and utilizing the existing brownfield modifications.
• Led discipline engineering matrix team for concepts development and evaluation.
• Managed Interfaces with existing projects/Asset WRFM teams associated with the existing facilities
• Evaluated Technical HSE risks through Asset HAZOP, LOPA Outcome, Vessel Impact studies.
• Well organized (incl preparations for technical & construction details) HAZID & Constructability workshop & capture all the HAZARDS & Construction risk for the scope.
• Proactively well organized the SAR3 review in coordination with SAR3 Team and Project team and got good feedback from SAR3 team.
• Developed Functional Specifications for SPM and scope of work for installation and also performed technical bid evaluation, clarifications for the technical queries for procurement & installation. Involved in face-to-face meeting sessions.
• Pre engageTA2 for effective review & lead the team for a successful completion of Basis for Design (BfD).

Lead Process Engineer - AIBEL - Asker, Norway

(2019-02 - 2020-07)

Lead process engineering team for design of offshore flare system and coordinator for process dynamic studies with a team matrix of 10 engineers

• Responsible for Process design of Gas Production system
• Develop P&ID, equipment sizing for Gas production system.
• Preparation of System description, control & shutdown philosophy.
• Provide inputs to Cause & effect matrix.
• Review dynamic model for final approval.
• Lead feasibility, concept selection, pre-FEED and FEED studies.
• Define project scope, Basis of Design, and execution strategies.
• Coordinate and integrate multidisciplinary engineering inputs.
• Lead option selection, value engineering, and technical risk assessments.
• Manage cost estimates, schedules, and project economics.

Senior Process Engineer - PETROFAC - Chennai, India

(2010-10 - 2011-07)

SHELL IRAQ project | Shell| FEED | IRAQ

• Role as senior process engineer and responsible for process engineering activities for Shell IRAQ petroleum Project conceptual and detail design for brown field projects with a team of 3 engineers.
• Modelled depressurisation using Aspen HYSYS (Fire case, Adiabatic and Isochoric case)
• Preparation of P&ID and cause and effect matrix.
• Run Flare Header Sizing using Flarenet.
• Preparation of Process Safety Flow Diagram (PSFD)
• Performed sizing calculations and reports.

Senior & Process Engineer - FOOSTER WHEELER - Chennai, India

(2007-09 - 2011-09)

IOCL Paradip | IOCL | FEED/ Detail | India, Qatar Petrochemical | QP | FEED | Qatar. Ras Tanura Integrated Project | Saudi Aramco FEED | Saudi. For the above projects, the role as senior & process engineer for FEED and detail design scope.

• Development of PFD, P&ID, DPTD, MSD, Hazardous material schedule, Steam balance calculation,
• Preparation of Utility summary, drain & effluent summary,
• Exposure on Fuel oil system, Deaerators & boiler section, steam led down system and Flue gas desulphurization systems.
• Preparation of Equipment sizing of FO Tank, Steam blowdown drum, BFW Pump and datasheet
• Preparation of Relief load estimation, PSV sizing, PSV inlet and outlet line sizing
• Performed Hydraulics for Pump and network hydraulics for flare system.
• Preparing PFDs, UFDs, P&IDs and DPTD drawings
• Develop Two/Three phase Separator sizing.

Plant System Engineer - Reliance Industries (RIL) - India

(2004-07 - 2007-07)

Reliance Industries | Reliance| Operations| India. Reliance industries limited is world’s largest gross root refinery with 650 KBPSD processing capacity. VATech project is in the ETP and Cooling system for meeting the process parameters.

• Role as plant system engineer to work at site and monitor PLC for ETP and cooling water plant, report to CTS team.
• Attended all Reliance safety and learning trainings.
• Review of documents and drawings which are issued as part of FEED package of VATech project.
• Review and updating of LDT, Tie-ins, interconnecting P&IDs, pump sizing and NPSH checks.
• Relief load calculation, PSV sizing and inlet and outlet valve sizing
• Involved in the plant operation (supervision under seniors) and maintenance.
• Develop Two/Three phase Separator sizing.

Bachelor - Chemical Engineering - National Institute of Technology (NIT) - Durgapur