Ivor Wildin

Managing Director, Worldwide Tank Services

Qualifications and affiliations

  • Managing Director of Worldwide Tank Services
  • DipEE BEng Post Grad.
  • Non-Destructive testing (UT. Dye Penetrant, Magnetic Particle Inspection)
  • API 653 Registered Inspector Stainless Steel Specialist (Australian Stainless Steel Institute) HAZOP/HAZID Facilitator
  • Certificate IV in Training and Assessment

Current positions

Managing Director of Worldwide Tank Services formed in 1983


With over 35 Years’ experience in Storage Tank Terminal Engineering, Pipelines and general mechanical engineering of process and refining plants. With experience in training and lecturing in engineering subjects in Australia, Middle East, and South East Asia specialising in subjects examined by the American Petroleum Institute – Individual Certification Program (API-ICP).


Matt Yavuz

Senior Instructor with Worldwide Tank Services since 2014 in Europe, Australia and New Zealand.

Matt has been Inspection Superintendent in Refineries, for over 10 years and lecturing for 4 years on API Engineering courses in Australia, Asia and Europe, Matt has been working in oil & energy companies and key industrial projects like Diesel Hydroprocessing Plant and Heavy Plate Mill Construction; Iron & Steel Works. As being former Maintenance and Inspection Manager of TOTAL OIL, he had considerable amount of knowledge and experience on Tank, Piping & Vessel Inspection, Maintenance and Construction. Together with holding a B.Sc degree of Metallurgical and Materials Engineering, he also is a European Welding Engineer.

He further continued his professional training by obtaining certificates of Level II degree on NDT, NACE CIP Level II Coating inspector and NEBOSH Occupational Health and Safety specialist. He is currently API Certified Tank Entry Supervisor and accomplished presenter of engineering courses for Worldwide Tank Services worldwide.



Other Qualifications:

1. Metallurgical and Materials Engineer (2003) BSc

2. European Welding Engineer

3. International Welding Engineer

4. NDT Level II (MT, PT, RT)

5. NACE Level II – Coating Inspector

6. NEBOSH – Occupational Safety and Health Specialist

7. API Certified Tank Entry Supervisor

8. API 510 Pressure Vessel Inspector 

Mr. Willem Stermberg Nel

Mr. Willem Nel NHD (Chem. Eng.) is a Senior Process & Chemical Engineer with over 30 years of industrial experience within the Oil, Gas, and Petrochemical Industries. His experience covers Boiler Feed Water Treatment and Steam Generating Facilities (Utility and Waste Heat Boilers), OM&S (Oil Movement & Storage), Air Separation (Oxygen, Nitrogen & Utility Air Supply), Natural Gas Treatment and Separation, Top Fired Furnaces (Syngas Production), Process Hazard Analysis (PHA), Failure Mode & Effects Analysis (FMEA), Environmental Management (ISO 14001), Safety Management (OHSAS 18001), Safety Verification & Assessment, Process, Chemical & Safety Engineering particularly on Polyethylene, Polypropylene, Gasoline & Diesel Fuel Technology, Liquid Bulk Cargo Handling, Process Plant Performance & Efficiency, Petroleum Refining Processes, Refinery Optimization, Further herein, he has been involved in technical and operational aspects of piping and pipeline engineering, integrity, design and maintenance from offshore to onshore facilities, feasibility studies, requirements engineering, HAZOP & hazardous area classification studies, hazard, risk assessment & management, SIL Assessment, Accident/Incident Investigation, Validation of Control Systems, Safety & Quality Auditing, and the Design of Functional Safety Management Systems. He also has extensive knowledge of various PHA (Process Hazard Analysis) techniques used in the industry and has conducted several trainings in these fields in compliance with the international standards and as an application of HAZOP (Hazard and Operability).

During his career life, Mr. Nel was a HAZOP Team leader for numerous HAZOP studies. During his career life, Mr. Nel was the Project/Plant Manager of VIVA Methanol Ltd in Lagos, Nigeria. He was also the Syngas Manager for PETROSA, South Africa, where he was responsible for Methane Reforming (both steam & auto-thermal), PSA Hydrogen Purification, CO2 Removal (Amine process), Air Separation (air, oxygen & nitrogen), Gas Separation (LNG, methane, ethane, propane, butane, LTG, ethylene, propylene & butylenes), liquefaction and vaporization of natural gas. He was monitoring and optimizing the plant’s operating parameters and continuous problem solving in order to ensure optimal production. He has also performed HAZOP studies for plant modifications and new developments. Prior to this, Mr. Nel was the Divisional Superintendent of MOSSGAS responsible for the overall Oil Movement and Storage, including subsea and overland pipelines (condensate, gas and final products). Part of his responsibilities included the pigging (gauging, cleaning, intelligent, etc.) for these pipelines after construction, during operations and turn-around maintenance.

Lately Mr. Nel has devoted his time to training for various disciplines in the Petroleum and Petrochemical industries in the Middle-East. He has presented both public and in-house courses for companies such as ADMA-OPCO (Abu Dhabi), SABIC and ARAMCO (Saudi Arabia), TATWEER (Bahrain), Q-Chem (Qatar), PDO (Oman), TOTAL (Yemen), Borouge (Ruwaiz, UAE) and also KPO (Kazakhstan), covering topics such as Safety, Accident/incident Investigation and Reporting, Engineering and Design, Troubleshooting and Problem Solving, Production and Optimization in the Oil and Gas, Gasoline and Diesel Fuel, and Polymer production. He has also provided consultancy services for Ar-Razzi Methanol Company in Al-Jubail, Saudi Arabia, for the training and conducting of HAZOP studies.

Mr. Nel has a National Higher Diploma (equivalent to Bachelors degree) in Chemical Engineering and a Advanced Management Certificate from the University of Stellenbosch.

Elroy Christie

Qualifications and affiliations

  • Masters & Bachelor degree in Chemical Engineering
  • API 570 Process Piping Inspector
  • API 510 Pressure Vessel Inspector

Positions Held

  • GE Plastics
  • DuPont

His expertise includes a wide area of Process Engineering & Design; Mechanical Integrity; Process Plant Performance & Efficiency Management, Engineering & Troubleshooting; Piping Stress Analysis & Design; and Pipeline Integrity Assessment; the Design, Analysis, Fabrication, Inspection, Maintenance, Repair of Pressure Vessels & Equipment, Storage Tanks and Heat Exchangers .


Senior Process and Chemical Engineer with over 20 years of extensive experience within the Petrochemical, Oil & Gas industries. Herewith, he handled several challenging responsibilities involving the Process Safety Management & Operations and Polymer Operations . He had been the Operations Manager, Process Safety Manager, Polymer Area Leader, Maintenance/Operations Supervisor, Manufacturing Specialist, Process Engineer, Chemical Engineer. Herein he was responsible for developing the training for Safe Handling of Explosive Powders for GE Plastics Corporate World Wide and Productivity Improvements & Uptime improvements; providing technical assistance to operations for Safety & Environmental Stewardship programs; design and implementation of computer based watchdogs for process monitoring and optimization ; and the Organizational Restructuring using Six-Sigma Design & Methodology. Elroy has received numerous awards like the DuPont Distinguished Environmental Service Award, the Environmental Excellence Award, the Site Engineering Service Award, and was further attributed several local management and awards for his contributions in Process Safety Management (PSM).


William Hadley

Qualifications and affiliations

  • Mechanical Engineering
  • Past President of the South African Institution of Mechanical Engineers (SAIMechE)

Postions Held

  • UNILEVER as a Maintenance Supervisor
  • SULZER -Regional Manager


The technical specification, design, and maintenance of equipment such as vessels, tanks, pumps, turbines, and compressors. Making use of computer interfaces to assess and rectify equipment defects. Heading a task team responsible for revising the in-house Engineering Standards of Major oil refineries bringing them into line with current international practices. He is the principal consultative resource for rotating & static equipment to the reliability departments of a number of major refineries and plays a key role in Reliability Improvement Programs in those facilities and works closely with his client’s process engineering team in providing integrated solutions to process reliability problems. He conducts in-house training in the maintenance of both static & rotating equipment required in the production process. He has good “hands on” working knowledge of refinery processes and the hardware used in those processes. First, he worked for UNILEVER as a Maintenance Supervisor, where he was responsible for the maintenance of rotating plant, mechanical seals, bearings and specialized packaging machinery, in various divisions. Thereafter he then joined an engineering consulting firm specializing in the marine, mechanical and structural engineering fields. He managed the Design Office and, was Project Engineer, responsible for the construction of chemical recovery plants in the Pulp and Paper industry.


Dr. Alan Murray

Qualifications and affiliations

Dr. Murray was until recently the Chief Engineer at the National Energy Board in Calgary Alberta Canada and is an Adjunct Professor in the Mechanical Engineering Department of the University of Calgary. He is a graduate of the Queen’s University of Belfast where he later lectured in Civil Engineering. He has worked in a number of areas in Pipeline Design and Construction, System Planning, Logistics and Procurement,  for Nova Corporation, subsequently TransCanada Pipelines, where he was Director of Pipeline Services. The founding Chair of the ASME Pipeline Systems Division, Alan is the co -author of the ASME Press text books Pipeline Design and Construction – a Practical Approach. Pipeline Integrity Assurance and a contributing author to ASME Boilers and Pressure Vessels. He has authored over 60 published papers on a variety of engineering topics and received the ASME Award of Distinction in 2006. He currently serves on a number of Codes and Standards committees and Government panels on energy research and  Development and is a Fellow of the ASME and a M I MechE .

Brenton Watts

Qualifications and affiliations

Brenton has more than 23 years’ experience in the oil industry, having worked in the areas of integrity management, corrosion assessment and prevention, condition monitoring, failure analysis and inspection services, in upstream, downstream and petrochemical facilities. Brenton has spent the largest part of his career in petroleum refining.

Brenton has been involved in numerous risk based inspection (RBI) implementations and studies, including for the Caltex Kurnell Refinery and Bluescope Port Kembla Steelworks in Australia and the S-Oil Refinery at Ulsan in South Korea. He is currently Australian Integrity Team Leader for Lloyd’s Register.