CPECC Demineralisations Water Package

The Challenge

At the Majnoon Oil Field in Basra, river water with high levels of suspended solids and dissolved salts posed a major obstacle. The client required a reliable water treatment solution to provide consistent, high-quality water for oilfield operations. Harsh site conditions and variable feedwater quality demanded a system that was both robust and modular, capable of meeting strict performance standards while remaining simple to operate and maintain.

Client

Basra Oil Company 

Industry

Oil & Gas

Purchaser

China Petroleum Engineering & Construction Corporation (CPECC), Iraq Branch 

Consultant

KBR

Location

Majnoon Oil Field 

GWT Solution

Gulf Water Treatment delivered a fully containerized and modular desalination package designed to meet the demanding conditions of an oilfield environment. The system was engineered as a complete water treatment chain, beginning with robust pre-treatment that combined coagulation, sedimentation, and multimedia filtration to effectively remove suspended solids and lower the risk of membrane fouling. This created a stable feedwater stream suitable for high-efficiency desalination.

At the heart of the system, a two-stage reverse osmosis configuration was implemented to maximize recovery rates and ensure consistent permeate quality. The design enabled the plant to produce water with salinity levels below 500 mg/L, well within the stringent limits required for oilfield operations. Post-treatment safeguards further enhanced water quality, with UV sterilization providing microbial protection and chemical dosing systems ensuring scale control, pH balance, and overall process stability.

What made the solution particularly effective was its containerized and modular structure. All equipment, including pre-treatment units, RO skids, and dosing systems, was pre-assembled in high-cube containers equipped with thermal insulation, air-conditioning, and exhaust systems. This approach minimized site construction work and allowed for rapid deployment while guaranteeing reliable operation in the harsh climate of southern Iraq. Coupled with PLC-based automation, the plant offered real-time monitoring and process optimization, enabling stable, trouble-free performance over the long term.

Scope of Work

Engineering & Design

  • Complete process design integrating pre-treatment, RO, and post-treatment stages.
  • Detailed equipment selection and system integration to meet oilfield water quality standards.

Fabrication & Supply

  • Manufacturing and assembly of treatment skids and dosing systems.
  • Pre-assembly into insulated 40-ft containers with HVAC, lighting, and access arrangements.

Installation & Commissioning

  • Delivery and on-site positioning of containerized units.
  • Commissioning with performance testing to verify treatment capacity and water quality.

Operations Support

  • Training for client operators on system handling and routine maintenance.
  • PLC-based monitoring with provision for local troubleshooting and process optimization.

Our Approach

Our approach combined engineering precision with practical deployment strategies. By opting for containerized solutions, we ensured quick mobilization and minimized construction delays. The system was designed around ease of operation and lifecycle dependability, giving the client confidence that their water needs would be met consistently even under fluctuating conditions of the oilfield environment.

Key Benefits

  • Reliable performance: Achieved 70% recovery rate with consistent water quality.
  • Compact modular design: Fully containerized plant minimized site work and accelerated deployment.
  • Operational stability: Integrated monitoring and PLC-based controls enabled real-time optimization.
  • Sustainability: Smart use of reject water for backwashing reduced wastage.

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