NIGERIA
Fleet House, 105 Olu Obasanjo Road,
Port Harcourt, Rivers State.
Supply & Installation of Boiler “B” and “C” for OBOB Gas Plant, Nigeria
Location
NIGERIA
Date
2012
Markets
Oil & Gas
Project Overview
The ObOb gas plant is a facility which was operated by the Nigerian Agip Oil Company (NAOC) as part of its operations in the Niger Delta region of Nigeria. This gas plant is situated within the OML 61 license area and is known for its significant oil and gas reserves, with the Obiafu-Obrikom (Ob-Ob) fields being a major component.
Scope of work
The Scope of work is to remove existing steam boiler units “B” and “C” (supplied and installed on 1992) and were damaged in 2008 and 2010 respectively.
The units to be installed shall be full decommissioned, removed and replaced with new ones. In order to ensure a smooth replacement, company requested that the new units be a carbon copy of the existing ones and make use of the existing plant tie-in facilities and process controls.
Challenges
Environmental Factors
Frequent rainfall causing work stoppages mainly on lifting operations.
Material Constraints
Carbon Copy Steam Generation Boiler Units which were out of production and had to be manufactured in accordance to earlier models to suit company request.
Long Lead Items which were obsolete but necessary for the successful commissioning of the new systems.
Construction Constraints
Heavy Lift Operations which were to be carried out in a Live Plant but necessary to enable the removal of the old units and be replaced with the new ones
No Shutdowns All operations involved in the replacement of the steam generation boilers were to be carried out in the live plant and ensure that no shut downs or downtime of any other units were required.
Social Factors
Community expectations and complaints about construction disruptions
Security concerns in some neighborhoods along the route
Impact
The replacement of steam generation boilers at the gas plant delivered a major step forward in operational efficiency and environmental performance. By adopting advanced boiler technology, the project achieved:
Higher energy efficiency through better heat transfer and control systems
Reduced fuel consumption and emissions, including CO₂, NOx, and particulate matter
Improved reliability and safety, with lower maintenance needs and downtime
Better load management, allowing efficient response to steam demand fluctuations
Compliance with environmental regulations, supporting sustainable operations
This upgrade positions the plant to operate more cleanly, safely, and cost-effectively—benefiting both the environment and long-term project performance.
Related Projects
Oil & Gas
Civil Works for the Construction of Equipment Foundations at ANOH Gas Plant, Nigeria
Construction & Installation
Procurement
Commissioning
ANOH Midstream Gas Processing Plant Project is one of seven (7) critical projects identified by Federal Government of Nigeria for supply of gas to the domestic market.
View Project
2014
Oil & Gas
API Pit at Brass Tank Farm, Bayelsa State, Nigeria
Construction & Installation
Procurement
Commissioning
API Pit at Brass Tank Farm, Bayelsa State, Nigeria
Oil & Gas
API Pit at Brass Tank Farm, Bayelsa State, Nigeria
Construction & Installation
Procurement
Commissioning
API Pit at Brass Tank Farm, Bayelsa State, Nigeria
View Project
2021
Oil & Gas
Construction of ASSA North Gas Plant Well BAY 3, Shell, EGBEMMA, Owerri, Imo State, Nigeria
Construction & Installation
Procurement
Construction of ASSA North Gas Plant Well BAY 3, Shell, EGBEMMA, Owerri, Imo State, Nigeria
Oil & Gas
Construction of ASSA North Gas Plant Well BAY 3, Shell, EGBEMMA, Owerri, Imo State, Nigeria
Construction & Installation
Procurement
Construction of ASSA North Gas Plant Well BAY 3, Shell, EGBEMMA, Owerri, Imo State, Nigeria
View Project
NIGERIA
Fleet House, 105 Olu Obasanjo Road,
Port Harcourt, Rivers State.
Zerock 2025 all rights reserved
