Offshore Construction Services


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Offshore Oil and Gas Construction Personnel

Chelsea House,
30 West High Street,
AB51 3QR,
United Kingdom
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Offshore Construction Services (OCS), formerly GSK (Scotland), is an expanding, privately owned company based in Aberdeenshire, Scotland, that provides professional, experienced personnel to the offshore oil and gas construction industry worldwide. Our crews of selected personnel all have a minimum of three years’ experience within their working capacity and are highly capable within their roles.

OCS is a seabed-to-surface operations contractor for the worldwide oil and gas industry. We provide a range of personnel services and deliver complex projects in rugged and challenging environments on a global scale. We aim to deliver a professional service with a vast range of experience, tailored to meet each client’s requirements.

Seabed-to-surface offshore personnel services

OCS’ main areas of operation include subsea umbilical, flowline and riser installations, subsea field development, construction and abandonment, offshore platform maintenance, and onshore site maintenance. We concentrate on providing a service that provides our clients with the knowledge, experience and expertise required to successfully complete each project.

Our offshore construction personnel are involved in the following:

  • Platform shutdowns and maintenance programmes
  • Platform de-commissioning
  • FSU, FSO and FPSO subsea mooring installation
  • Flexible flowline and riser installations
  • Mid-water arch installation
  • All aspects of subsea field development and abandonment
  • Consultancy / advisory services
  • Client representation
  • LOLER lift planning and generation of method statements

Personnel for subsea construction projects, FPSO mooring and riser / umbilical installations

To date, OCS has been involved with a number of subsea construction projects and FPSO mooring, riser and umbilical installations abroad, as well as some smaller projects within the UK sector of the North Sea and onshore UK. All have had successful end results with zero accidents or incidents, maintaining the professional standard that we have set ourselves.

Our high working standards to date have been achieved by our consultants, superintendents, supervisors and various other trades liaising directly with our clients’ management and engineering staff, in order to ensure a safe and efficient execution on any given worksite.

Oil and gas professional office staff

Our professional office staff are available to provide a high level of service to our clients, as well as providing a base and point of contact for clients and crews alike. They endeavour to maintain a smooth operation from the beginning to the end of each project, large or small.

Offshore construction project consultants / advisors

OCS can provide experienced project consultants / advisors to oversee various worldwide construction projects, large or small, either onshore or offshore. To all of our existing and potential future clients, we offer our teams of experienced trades personnel as directly hired employees of OCS under the control of our site supervisors, and liaise closely with our client’s management and engineering personnel.

This allows us to tailor our workforce quickly and efficiently to our client’s requirements throughout the term of each contract and eliminates the need to re-organise teams from multiple subcontractors.

Offshore construction personnel

People are central to OCS’ success. We function as an integrated team during projects at any given location, worldwide. Everyone within OCS shares an unwavering commitment to safety, the environment and successful completions of all projects. We are committed to understanding and meeting the requirements of our clients in a safe, professional and efficient manner.

Highly trained offshore construction personnel

OCS’ offshore construction personnel have a high level of professional expertise, which is furthered with training programmes that are widely acknowledged to be among the best in the business. Our people regularly attend further training programmes to further their professional expertise and know-how, with the aim of becoming the best in the industry.

OCS was initially formed in July 2006 and re-registered as Offshore Construction Services by Gary S Keay, who has over 22 years of oil and gas industry experience, and over 17 years’ experience with subsea field construction and development. Mr Keay continues to be instrumental in the daily running of all operations and providing additional information and advice to our teams as required.

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Press Releases

  • Offshore Construction Services Provides 24/7 Support

    Past years have seen many changes for service providers in the oil and gas industry. Technology and equipment are constantly being developed and upgraded; methods employed to carry out tasks are continually assessed and adapted; and HSE concerns are at the forefront of every operation.

Offshore Construction Services Ltd
Chelsea House
30 West High Street
AB51 3QR
United Kingdom

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