To main content

Refurbishment water station, Olero Creek

In November 2010 Chevron Nigeria Limited (CNL) awarded the contract to refurbish this facility to Saipem Contracting Nigeria Limited (SCNL) with Nigerian Westminster Dredging and Marine Limited (NWDM) as subcontractor. The Olero Creek Restoration Project (OCR) is a 70 million US$ construction and commissioning subcontract. The scope of work is the refurbishment and reinstatement of the North Water Station (NWS) and its hook up to the interconnecting piping at Olero Creek.

The scope involves fabrication, installation, transportation, testing, hook-up, commissioning and start-up. The Olero Creek facilities were vandalized during a period of civil unrest in 2003 and further detoriated the following years. The Olero Creek facilities are located in the Olero Creek Field in OML-49 lease and consist of:
  • The North Flow Station (NFS), including production separation and oil shipping; 
  • The North Water Station (NWS), including water treating and injection;
  • The North Compression Station (NCS), including gas compression and dehydration;
  • Quarters and Utilities Station (QUS), including accommodations, power generation and utilities.
The coordinates of the North Water Station (NWS) in the Olero Creek are:
  • Latitude: 05 degree 51 minutes 28.6811 seconds
  • Longitude: 05 degree 07 minutes 55.4051 seconds
These four gravity-based concrete barges are connected by Interconnecting Piping (ICP) along a bridge. The North Flow Station (NFS) together with a temporary production system called the Benin River Flow Station is transporting oil and water from Olero Creek to the CNL facilities at Escravos.
The Olero Creek facilities were vandalised during a period of civil unrest in 2003 and further deteriorated the years thereafter.  The subject contract covered the refurbishment of the North Flow Station (NFS) and the North Water Station (NWS).

NWDM General scope of work

The NWDM scope of work consisted of the refurbishment of existing equipment and installation of new equipment on the North Water Station (NWS) at the NWDM Merogun yard in Warri and the transportation, installation, hook-up, commissioning and start-up at the Olero Creek location on completion of the refurbishment works. The NWS is a concrete gravity based barge with dimension 51.92m x 24.44m x 4.27m. The barge arrived at the NWDM yard in December 2010.

Related projects

Selected filters

Gas pipeline project, Trans Thailand Malaysia

The Trans Thailand Malaysia Gas Pipeline Project comprised the installation of a 34 inch concrete coated gas pipeline, running from the joint Thai-Malaysia development area approximately 270 kilometers offshore towards the southern Thai coast near Chana. As part of this project a contract was awarded to the Boskalis Offshore B.V. - Tideway B.V. consortium for the provision of the dredging and backfilling works, whereas Boskalis Offshore provided the main equipment and project support.

Seahorse_04_header.jpg

Glory hole excavation, White Rose

The White Rose offshore oil field is the third major oil field in the Jeanne d’Arc Basin on the Grand Banks, some 350 kilometers east of St. John’s, Newfoundland, Canada and within 50 kilometers from the Terra Nova and Hibernia fields. The South White Rose oil pool covers approximately 40 square kilometers and contains an estimated 200-250 million barrels of recoverable oil.

Development gas export pipeline,
Hibiscus to Point Fortin

The NCMA Development Project comprised the development of the North Coast Marine Area, which is located in the Caribbean Sea and Bay of Paria, Trinidad. The project included the installation of a 24" Gas Export Pipeline from the Hibiscus Platform to a landfall at Point Fortin. From the landfall the pipeline was routed by directional drilling and by surface laid pipeline, to a termination point in the Atlantic LNG Terminal at Point Fortin. As part of this project Boskalis was awarded the contract for the provision of landfall, directional drilling and onshore pipeline installation and testing of the 24" gas pipeline system.

Sandpiper_foto_offshore_2_header.jpg

Hanze F2a Development Project

Hanze, 200 kilometers offshore Den Helder in block F/2 of the North Sea, is the first operated development in the Dutch sector by Germany's Veba Oil. The oilfield reserved approximate 34 million bbl, plus 40 bcf of associated gas. 

Installation gas pipeline, Takoradi

Late November 1998 Boskalis was awarded a subcontract for the installation of two marine pipelines to supply and discharge cooling seawater for the Takoradi thermal power plant that was under construction for the Volta River Authority, near the village of Aboadze approximately 20 kilometers north-east of Takoradi, Republic of Ghana.

WD_Fairway_and_Sandpiper_near_platform_header.jpg

Re-insulation Gannet 'C' Bundles, North Sea

The Gannet 'C' satellite field, which is located in the North Sea at 112 miles East of Aberdeen in 95-meter water depth, comprises four drill centres, each having one or more producing wells. The drill centres are connected to the local platform Gannet 'A' by four flowline bundles with a total length of 10 kilometers. A glycol-based gel, filling the annulus of the Gannet 'C' carrier pipe, insulated the individual flow lines. Prompted by degradation of the gel and the resulting drop in oil and gas arrival temperatures at the platform, an EPIC project took off for a re-insulation system. The objective of the re-insulation system was that it should provide sufficient insulation to the bundles in order to safeguard production during the total field life of Gannet 'C', being a minimum lifetime of 15 years. Boskalis Offshore was supported by Hydronamic - the in-house engineering department.