Engr. Mark Williams
Operations excellence & troubleshooting: plant start-up/shutdown, turnaround readiness, root-cause analysis and troubleshooting, corrective/preventive actions to restore stable performance and integrity.
Engineering deliverables & discipline integration: preparation/review of PFDs, P&IDs, specifications, and resolving cross-discipline design conflicts (mechanical/electrical/instrumentation/HSE).
Equipment selection/sizing & process systems knowledge: gas pipelines, gas dehydration (glycol/solid bed), acid gas treatment, NGL recovery, hydrocarbon dew-point control, compressor station operations—skills aligned with core process engineering workflows.
Engr. Mark Tubotein H. Williams, FNSE, FNSChE — Managing Director, Matwims Consult Ltd. Target roles: Project Engineering Management, Process Engineering Services, Process Safety Services, Training/Human Capacity Development, with a proven record leading multidisciplinary teams and improving plant performance
Professional Profile
A licensed Chemical/Process Engineer with 43+ years of post-graduate experience spanning upstream, midstream, and downstream oil & gas—with deep hands-on exposure in refinery operations, gas processing, compression/flow stations, process engineering consultancy, rehabilitation/revamp projects, and workforce training.
Core Process Engineering Capabilities.
Process design & front-end development: feasibility studies, conceptual design and FEED; scope definition for revamps/debottlenecking and modernisation.
Process simulation/modelling for decisions: modelling refinery and gas systems to predict yields and quality; optimisation and debottlenecking support; using simulation to justify upgrades and modifications.
Process safety leadership: delivery/leadership of HAZID, HAZOP, SIL, LOPA and implementation of process safety protocols—core to safe design, MOC, and operability assurance.
Recent and Notable Roles
Lead Process Engineer (NETCO) – Warri Refinery Rehabilitation (2023–2024): technical authority for process engineering to restore and modernise units; led surveys/data validation; reviewed EPC deliverables; coordinated with licensors; ensured refinery integration and safe, fit-for-purpose design.
Project Manager (Pejad Nigeria Ltd) – NNPCL Refineries Rehab / Afri-6 upgrade support (2024–2025): performance metrics, stakeholder coordination, progress reporting; refinery modelling to identify upgrade needs and cost implications; review of licensor proposals (UOP/Axens/KBR) for bankable studies.
Process Engineering Manager (Heritage Energy) (2018–2019): facility optimisation and production improvement; turnaround inspection/recertification; SOP updates; process safety info updates; simulation-supported operational modifications.
Earlier career (NNPC/WRPC 1983–2003 + consulting thereafter): refinery unit operations leadership across CDU/VDU, Naphtha Hydrotreating, Catalytic Reforming, HF Alkylation; Process plants technical audits, energy conservation, instrumentation revamps, wastewater upgrade; recognised with major awards for eliminating design defects and safe commissioning.
Education & Professional Standing B.Sc. Chemical Engineering (University of Toulouse, France, 1981); MBA -University of Benin, Nigeria (1994); M.Eng. Chemical Engineering (University of Benin, Nigeria, 1998); COREN registered; Fellow (NSE, NSChE); member AIChE.
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