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Cost-efficient exploration of marginal fields is at the top of the agenda for many operators in the oil and gas industry. The cost-effective minimum-facility platform is a good alternative to the traditional wellhead platform or subsea installation. It is normally unmanned, and acts as a satellite with power, chemicals, utilities and controls being supplied by a host.
Experts on minimum-facility platforms
The design of minimum-facility platforms is one of Ramboll’s core competencies. Since the 1980s, we have designed a significant number of minimum-facility platforms for such diverse environments as the Gulf of Mexico, the Arabian Gulf and the North Sea
Our services within minimum-facility platforms cover:
Field development assistance from
Design optimisation of steel-structures
Design optimisation of layout
Design of associated pipelines
Brownfield modifications to host platform
Assistance with third party/authority verification
A ‘necessities only’ philosophy
The philosophy behind Ramboll’s minimum-facility platform is to use simple and robust technology which requires a minimum of manual operation and maintenance. Key characteristics are:
Designed for remote control
Intelligent and simple layout – necessities only
Simple and reliable equipment solutions with low maintenance requirements
Replacement rather than repair
Reducing steel weight
Unmanned operation increases safety and reduces costs
By keeping the minimum-facility platform unmanned, we are reducing the risk to personnel while reducing costs. Robust equipment means fewer maintenance campaigns. This will keep OPEX down and also allow for alternative modes of access. Access via boat or telescopic gangway eliminates both costs and risks associated with helicopter access.
Minimalist topsides design with maximum return
All process facilities that are not required for transfer of well stream to the pipeline are eliminated. We call it the scaled-down topsides, characterised by:
A minimum of process and utility components
A minimum of hazardous material
Hand-held firefighting equipment and self-contained units
Remotely controlled control/F&G/ESD systems
A minimum of mechanical equipment requiring statutory periodic inspections/re-certification
Portable equipment stored on the support vessel
Optimised steel design reduces CAPEX
Applying advanced design and calculation tools, Ramboll is able to optimise the structural design and reduce steel volume while still adhering to all safety and regulatory requirements.
The result is a robust, low-weight, and easy-to-fabricate structure, which is easily installed at different water depths.
Nini and Cecilie - Minimum-facility platforms for a marginal field
Ramboll has assisted DONG Energy with a development project for modification of the Siri field in the North Sea, where we designed two lightweight and...
Unmanned wellhead platforms for Norwegian waters
The unmanned wellhead platform is a development concept under consideration for several licenses on the Norwegian continental shelf. Ramboll carried out a...
Working on one of the largest oil discoveries in Norwegian history
Statoil awarded Ramboll a feasibility study for their Johan Sverdrup field development project with the purpose of developing feasible concepts for...
Mustang - Unmanned wellhead platform for the Gulf of Mexico
BHP Billiton were extending their activities in the Gulf of Mexico, West Cameron area, a with an unmanned wellhead platform. Ramboll was awarded the...
Oseberg field development - UWP concept study
Unmanned minimum-facility platforms are a cost-effective alternative to subsea production systems. Statoil contracted Ramboll to carry out a study on an...
Tyra South East A - Design of unmanned wellhead platform for gas condensate field
As part of the Tyra field development in the Danish North Sea, operator, Maersk Oil, contracted Ramboll to assist with a number of engineering services...
Director, Business Development, North Sea
+45 5161 2375
Dag A. Nilsen
Director, Business Development, Norway
+47 488 93 227
Director, Business Development, Middle East
+974 5512 7157
Director - Oil & Gas India
+91 44 4386 7000
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