Project Profile
Value: US$2,500 million
Location: southeast of Lagos, Nigeria
Pipeline length: 115 km (EGP3B)
Startup Year: 2010
The project includes a new gas gathering and compression platform, (GGCP) comprising 500-tonne topsides (which includes a 12-slot bay, quarters and other associated systems), one new non-associated gas production platform (NPP) comprising 500-tonne topsides with four separate well jackets, low pressure gas gathering pipeline system to the new GGCP tie-in of new pipelines to six existing production platforms and related platform modifications, new high pressure gas transmission pipelines to shore, new high pressure gas injection pipeline from shore (totalling 125 km, 18\"-30\"), new product export pipelines from shore and a new SPM buoy/pipeline end manifold. Nine platforms will be in 7 metres of water.
The Escravos Gas Project Phase 3B (EGP3B), is part of Chevron Nigeria Limited’s two phase Western Delta Gas Development Programme. The objective is the reliable and economic supply of gas to onshore processing facilities and the reduction of the amount of gas currently being flared as a by-product of crude oil production.
The EGP3B project will gather Offshore Associated Gas (AG) from six production platforms, four in the North Offshore Area and two in the South offshore area. The gathered gas is intended to be routed to a new platform MEREN GGCP (Gas Gathering and Compression Platform) where it will be compressed and delivered to a subsea tie-in point on the EGP3A OKAN pipeline to the onshore facilities.
The project includes installation of 115 km of large diameter, thin walled, concrete weight coated steel subsea pipelines and installation of 9 risers, including 3 large diameter launched risers on heavily congested shallow water brown-field platforms.
Operators:
Chevron Nigeria Ltd: Operator with 60% interest
Nigerian National Petroleum Corporation (NNPC): 40% interest
Contractors:
Hyundai Heavy Industries (HHI) (Nigeria): EPC contract
Kvaerner Enercon: FEED contract
Mustang Engineering
Horizon Offshore
Ascot Offshore Nigeria
SBM (Single Buoy Moorings)
WorleyParsons (Nigeria)
ABB (Nigeria)
Acergy Angola
Foster Wheeler
Technip (Nigeria)
Gulf Interstate Engineering
Fairstar Heavy Transport N.V.
West African Ventures (WAV): Non-destructive testing services contract by for Chevron’s Escravos Gas Project (EGP-3). The contract, which was signed in February 2012, has SGS providing non-destructive testing of welds using x-ray pipeline crawlers, ultrasonic testing (UT), and magnetic particle testing services.
Subcontractors:
Bosch: Installation of topside awarded by Hyundai Heavy Industries
NETCO: Assist in executing this FEED work awarded by Kvaerner Enercon
Universal Services: Assist in executing this FEED work awarded by Kvaerner Enercon
Aveon Offshore Ltd (Nigeria): Provide marine transportation services for Fairstar Heavy Transport N.V
SGS: Non-destructive testing services contract
Trelleborg: Supply of floatover equipment for Phase 3 of the DSO Escravos Gas Project, the operation’s first floatover in West Africa. Contracted by Hyundai Heavy Industries (HHI), Trelleborg provided Leg Mating Unit (LMU) pads for the floatover process, as well as surge fenders, shock pads and rubstrips to constitute the project’s boat landing systems. Trelleborg’s elastomeric pads were incorporated into HHI’s LMU steel structures.