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Who Are We

Otto van Voorst
Senior Consultant



After graduating as a civil engineer, Otto van Voorst joined Heerema, the offshore heavy lift contractor. From field engineer on the crane vessels he developed a career in Heerema with a two-year posting in Perth (WA) and general manager of the UK operation, based in London.

In 1988 he joined Hamilton as a project manager and thereafter to ABB Lummus Global in the Leiden office as project services director. In 1993 he joined Bluewater as vice president responsible for all projects and was instrumental in the development of Bluewater.


In 1998 he set up Okeanos as a consultants’ organization focusing on the Technical support to the financiers of sophisticated offshore vessels such as FPSO’s, FSO’s, Drill ships & semi’s, LNG & LPG units and other vessels. Beside the financial institutions he served clients such as legal counsel in litigation arbitration cases and oil companies for peer review in project developments.

Rob Klein Nagelvoort
Senior Consultant

Rob received his Master in Physics from Delft Technical University at the Nuclear Reactor Institute, he then joined the Shell. Activities in the EP and Gas functions of Shell included the concept development, design and operational support of Gas Production, Processing, Liquefaction and Conversion plants all over the world e.g. in Brunei, Scotland, Malaysia, Australia, Oman, Nigeria, Russia, Qatar, U.A.E, and finally the Prelude FLNG project and the Pearl GTL plant in Qatar. Postings took him to Malaysia and Australia, where he was Technical Manager for the N.W.Shelf Gas and LNG operations, covering offshore and onshore.


In Shell, he became General Manager for all Gas Technology departments: Gas/LNG, Treating, Gasification, Gas to Liquids and Gas Master Planning. Rob holds various patents on LNG processes and introduced new concepts in the LNG industry, e.g. the use of large gas turbines as compressor driver, the Double Mixed Refrigerant process and FLNG designs, for near shore and deep sea.


Since 2010, Rob is adviser on various projects such as the review and optimisation of Gas and LNG projects, Gas-Master-Planning, new Gas and LNG schemes (onshore and offshore), Operating LNG plants and RegasTerminals etc. worldwide.


Recently, Rob has been involved in the development of LNG FPSO’s for various projects in Austral-Asia, North America, Africa and the Mediterranean and also reviews of FSRU’s (e.g. Brazil). This included projects at the high seas and near-shore. Also several new onshore LNG plants in North America were examined.

Leon- MT Section.jpg
Leon Harland
Senior Consultant



Leon Harland brings more than 25 years of diverse risk management and leadership experience in the oil and gas industry, especially in FPSO, FLNG, Pipelay / SURF and T&I segment.


He started his career in 1994 as a research engineer at Shell. Few years later he joined SBM and where he held various positions in engineering, project management and business development of turret mooring systems and FPSOs. Lateron he joined the Board of Heerema Marine Contractors, a company specialised in heavy transport & installation, deep water pipelay and decommissioning, as an Executive Director responsible for all commercial, engineering and R&D activities.


Until recently, Leon was the Executive Director and CEO of Bumi Armada Berhad, a publicly listed company from Malaysia that owns and operates a fleet of 50+ offshore vessels. Under his leadership, the company delivered and started-up three complex FPSOs, one LNG FSU and three ice-class offshore support vessels, all on a lease-and-operate basis.

James Ellis
Senior Consultant

Jim has been active in the offshore environment for over 30 years and has sailed to all corners of the world onboard crude carriers, chemical tankers, LNG carriers. He also has been Offshore Installation Manager on multiple Floating Production Units in countries such as Russia, Angola, Brazil, United Kingdom.


Further in his career, he has held various management positions including with BP as the President of BP Shipping (USA) and Global Fleet Manager for BP Shipping operating a large fleet including 12 gas ships (4 Gem. Class, 4 trader class and 4 VLGCs). He also worked with Excelerate Energy as Director of Floating LNG and provided the technical and commercial guidance of Floating liquefaction solutions and FEED execution plans for the Excelerate.


At SBM Offshore he was the Operations Director with the responsibility for the day-to-day operation of the global production fleet of 25 sophisticated vessels including FPSOs, semi-subs, LPG FPSO, LPG FSO and gas production jack-up.


More recently, Jim was the Senior Vice President Floating Produciton Operations at Bumi Armada where he was in charge of the daily operation of 10 FPSOs and 1 LNG FSO in 8 different countries. Under his tenor he successfully managed the commissioning, start-up and acceptance simultaneously of 2 large oil FPSOs in UK and Angola, 1 complex gas FPSO in Indonesia and 1 LNG FSO in Malta.


Jim has been member of the SIGTTO Board (Society of International Gas Tanker and Terminal Operators) and has all the relevant qualifications and safety training certificates.

Cliff Arkley
Senior Consultant

MCA Masters Certificate, Senior Master Offshore Oil

Marine management for the repossession process of vessels in ownership disputes. Including sourcing of information as to vessel status, the practical and operational aspects of taking over control. The movement to layup at a safe berth. Liaison with legal counsel, beneficial owners and vessel management. Providing solutions for nautical and operational issues when vessels are distant and in compromised situations.


General Marine & Fleet management, chartering and vessel utilization, owners’ legal representative. Rig moving (Semi-submersible & Jack-up), Towing Operations (ocean & infield). Marine Coordination offshore and ports. Vessel/rig/structure/cargo inspection, audit and surveying (P&I and MWS). Latterly more involvement in the Offshore Wind Farm Industry. Extensive reviews of site surveys, geotechnical and geophysical data related to cable corridors offshore, cable landing zones onshore and within tidal reaches.

L. Jamsir Sabara
Senior Consultant

Based and worked in Indonesia in excess of 20 years with experience in the energy sector from development, execution and management of mid and highly complex and multinational company ranging from consultancy, classification society, Engineering, Procurement, Construction, Installation & Commissioning (EPCIC), Offshore Support Services (OSS) and Transportation and Installation (T&I) in Indonesia.

He has deep knowledge and is very well connected with marine and offshore business in Indonesia from investment, market, regulation, contract, local regulation, taxes, human resources till project execution of onshore and offshore facilities but specific of floating unit such as FPSO, FLNG, FSO, FSRU, Floating Power Generation Unit, TLP, MOPU, SPM and others offshore facilities such as offshore pipeline and platforms.

Was, in 2012, Project Sponsor and Project Director for FSRU Central Java – Pertamina in the scope of Project Management Consultant (PMC) to assist Pertamina in project bid preparation, bid tender and bid evaluation of FSRU Central Java Project and participated until final technical and commercial evaluation with participants were Hoegh LNG and Golar LNG.

Paul Lakin
Senior Consultant

During the past 20 years Paul has been engaged in a number of EPC FPSO / FSO fabrication projects in various capacities, both Pre and Post award. Related experience includes conversion and new build FPSO / FSO turret and topside construction, FPSO hook-up and SURF works.


Work performed includes preparation and management of ITT and RFQ documents, contract conditions, scope of work, compensation schedules and project control sections.

Post contract work includes, project and site management of EPC Turret fabrication and FPSO conversion / ship repair works, planning, reporting and the settlement of final accounts for Operators and EPC Contractors.

Andre Dutter
Senior Consultant

André has ensured compliances of the FPSO conversion and refurbishment work with international and company standards. Optimized the design and fabrication wherever possible. Raised the awareness of the project team in terms of HSE and overall quality.

Was responsible for FPSO operations as well as the technical aspects of the mooring systems and swivels thereof. Member of the company management team. Analysed and optimized the running of the FPSO operations resulting in safer and more efficient operations of the 3 FPSO’s. Initiated and developed internal competencies for mooring systems and product swivels. Initiated a program aimed at reducing energy consumption across the fleet.

David Profit
Senior Consultant

A highly experienced hands-on engineer and manager with solid technical qualifications and wide offshore/onshore marine and oilfield experience, holding a UK MCA Class 1 Unlimited Combined certificate with Chief Engineer and Superintendent experience.


He also has significant commercial experience as Marine Engineering and Operations Manager, Agency Services Manager, Superintendent and Ship and Fleet-manager.

Non-marine experience includes significant international oil and gas production and drilling logistics & support operations management.

Coen Friedrich
Senior Consultant

Project engineering and project management of offshore projects for oil & gas companies in the North Sea. Engineering and construction of oil & gas platforms. Technical support to Sales & Marketing and Production for various projects on offshore construction.


Support during tendering stages and during fabrication. Project management of offshore products, mainly 'swivels' for single point mooring systems and buoys.

Damian Chapman
Senior Consultant

25 Years of experience in both Onshore and Offshore Engineering related to Decommissioning, Hazardous Waste Management, Tank Cleaning, Maintenance Shutdown and turnaround, refueling and other marine services with oil majors based between SE Asia and the UAE.

His core business involved pumping, hydraulics control, oilfield separation and oil recovery operations, decontamination, ship layup service, plus other aspects in areas involved with both upstream and downstream oil and gas engineering, and oil sludge waste management for offshore and onshore.

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