To main content

Early works for LNG plant, Brass Island

The Brass LNG Project’s objective is to construct a LNG Complex on Brass Island, Bayelsa State, Nigeria, and in so doing, develop Nigeria’s abundant gas resources, reduce the adverse effect of gas flaring on the environment, and provide social-economic benefits to the local and wider Nigerian communities. The LNG complex will be designed to produce approximately 10 million tons per annum (MTPA) of LNG, as well as LPG and Residual NGL products.

The early works

In October 2007 Brass LNG awarded Nigerian Westminster Dredging & Marine Limited (NWDM) the Early Works EPC Contract. The project consisted of the construction of a Pioneer Camp and three Pre-Loads to provide early settlement for the future tank farm of the proposed Brass LNG plant. In more detail the Scope of Work consisted of bush clearing and topsoil removal, the construction of temporary roads and pipeline crossings, the excavation of sand for the construction of the pre-loads, installation of vertical drains, the installation of settlement monitoring instrumentation and the monitoring thereof and covering the completed pre-loads with poly sheets.
The Pioneer Camp was designed to be fully self-supporting. Apart from accommodation units it consists of offices, catering, laundry and water treatment facilities. For the power supply three generators were supplied and installed. Furthermore, provisions were made for waste water and sewage treatment and for waste disposal an incinerator was supplied and installed. 

Execution

The bush clearing was mainly sub-contracted to local contractors from the three host communities. Immediately upon having the first areas cleared, sand excavation started to construct the temporary roads, and to create dry and stable platforms for the construction of the accommodation and offices, and for the pre-loads.
Approximately 1,5 million m3 of sand was excavated and transported for the construction of the three pre-loads, which were elevated to  approximately 20 meter height. The required sand was excavated from an onshore borrow area. Over 30 heavy duty dry earth moving machines were brought to site to execute the works, such as excavators, bulldozers, vibro roller compactors, articulated dump trucks, etc.

Related projects

Selected filters

Shell Malikai

Malikai is a deepwater oil discovery in offshore Sabah, Malaysia where Sabah Shell Petroleum Company is the designated Operator. A floating Dry Tree Unit (DTU) will be installed over Malikai field utilizing a Tension Leg Platform (TLP) design that suits the Malikai environment.

FF66817_header.jpg

Coastal development, Hondsbossche and
Pettemer Sea Defense

A joint venture of Boskalis Nederland and Van Oord has been commissioned by the Hollands Noorderkwartier water control board to reinforce the Hondsbossche and Pettemer Sea Defense between the villages of Petten and Camperduin on the coast of the Dutch province of Noord-Holland.

Cornelis_Zanen.jpg

Maintenance dredging, Yangon River

Located close to the city centre on the Yangon River, Yangon Port has been the main port to Myanmar since colonial times. Currently, the port has capacity for vessels of up to 15,000 –20,000 DWT and works are scheduled to increase the port’s capacity for vessels up to 35,000 DWT.

Gabon_Libreville1920.jpg

Port development,
Libreville - Gabon

A new area was constructed in the Port of Libreville for a mineral terminal, dry dock, fishing port, processing facilities and other port activities, such as aggregate processing. This new port development was required to improve and strengthen the logistic capacity for the inland mining industry, to reduce export costs, and thus to increase the competitiveness of mineral exports from Gabon.

Butendiek OWF

Boskalis was contracted by OWP Butendiek GmbH & Co. KG to supply, install and protect (by post-lay burial) the high-voltage inter-array cable at the offshore wind farm of Butendiek. This German wind farm is situated in the German Bight (Nordsea), approx. 35 km west of the island of Sylt. The 33 km2 wind farm consists of 80 wind turbines with a capacity of 3.6 MW each and a total capacity of 288 MW. The inauguration of the wind farm took place on September 8, 2015. It provides renew-able energy to approx. 370,000 households.

IMG_3549_header.jpg

Cleanup sediment treatment, Fox river

As a result of industrialization the riverbed of the Fox River (Wisconsin, USA) had become contaminated with PCBs (polychlorinated biphenyls). Joining together a number of large paper mills based on the banks of the river have established the Fox River Cleanup Group to handle the remediation project. The site is on the federal Superfund program’s National Priorities List.