What we do

Challenge

The project entailed the removal and transport of the vent tower (top elevation + 81.5m LAT) and a crane boom from the Thames Complex, located in Block 49/28 of the Southern North Sea, 80 km north east of the Bacton Terminal to an onshore disposal yard, located in Vlissingen (NL).

Thames installation was a three bridge-linked platforms’ complex: the wellhead (AW) platform, the processing and quarters (AP) platform and the reception platform (AR).

The Thames Complex is approximately 19.5 m from LAT to the cellar deck and 43 m from LAT to the Helideck. The jacket was in a 32.5 m water depth. Production ceased in 2014.

Neptune (Offshore Installation Vessel) at Vent project, UK (side)

Solution

DEME’s scope comprised the following activities:

Preparations & engineering
Mobilisation of ‘Neptune’ in Great Yarmouth
Transit to Thames field
Removal of the vent tower (120 tonnes, 62 m height) and down-ending on 'Neptune’s' deck
Removal of AW crane boom
Transport to onshore disposal yard in Vlissingen
Offloading the removed assets at the disposal yard in floating mode
Demobilisation of ‘Neptune’ in Vlissingen

Used technology

Offshore installation vessels

Related jobs

All jobs

Cable Burial Engineer

The geotechnical department gives support to the tender and project department of DEME Offshore in Breda. The department is responsible for all engineering related works: methods trenching, route engineering, cable burial, rock & landfall.

The main working location will be from our office in Breda with sporadic international trips and visit's to installation vessels.

Offshore

Engineering

Netherlands

See details

Tender Engineer FOU /HL

As a Tender Engineer, you will take part in the acquisition process of DEME’s global offshore projects “tendering”. You will play a key role in the preparation and submission of tender proposals to our clients. As a member of the Tender Department, you will be allocated to one or several tender teams, and will report for each tender to the Tender Manager. Together, we work on DEME’s vision of creating a sustainable future.

Offshore

Tendering

Belgium

See details

Cable Installation Engineer

As a Cable Installation Engineer you will focus on a variety of challenging cable installation related topics. You will assist our tender and project teams with engineering support during both preparation and execution phase. The engineering department in Breda consist of approx. 30 employees and you will work in a close-knit, international team of 8 cable installation engineers. Together, we work on DEME’s vision of creating a sustainable future.

Offshore

Engineering

Netherlands

See details

Trencher Supervisor on board

Our Dredging and Offshore vessels are highly technological equipment. The Trencher Supervisor is responsible on his/her shift to supervise and to instruct his/her team, the Cable Burial Tool operators, Riggers and assisting Engineers in performing all duties necessary for the safe cable burial operation as well as ensuring that the activities are conducted according to the task plans and procedures. You work on board one of our off-shore cable laying vessels.

Offshore

Crew/Workmen

Worldwide

See details

Trencher Operator on board

Our Dredging and Offshore vessels are highly technological equipment. As a Trencher Operator you are responsible for the operation of trencher equipment on board of our off-shore cable laying vessels.

Offshore

Crew/Workmen

Worldwide

See details

Project QHSE-S Engineer

DEME's objective is to provide a healthy work environment, to promote sound work practices and a healthy lifestyle for everyone involved in our business. QHSE is therefore one of the supportive departments that is involved in all Quality, Health, Safety and Environmental matters on our projects, vessels, and in HQ. As a project QHSE engineer you will be part of the team that is on site on one of our offshore projects worldwide, responsible for the maintenance and control of QHSE-S practices both on site and in the office, as well as inspecting all activities and equipment to reassure proper operation and implementation of procedures.

Offshore

QHSE

Belgium

See details

HV cable design engineer

As Senior Cable Design Engineer, your key responsibility will be to ensure that the High Voltage Submarine Cable Systems for our EPC subsea cable installation projects are designed, manufactured and tested as per our requirements and project specifications. You will be part of a small, international team, supported and coached by an experienced manager. In this position you will collaborate closely with suppliers, clients and various internal stakeholders, and you will contribute to our vision: creating a sustainable future.

Offshore

Engineering

Belgium

See details

Marine Electrician/Electronic Engineer on board

Our Dredging and Offshore vessels are highly technological equipment. As an Electrician/Electronic engineer you are responsible for the electrical and electronic equipment on board.

Offshore

Crew/Workmen

Worldwide

See details