**Client:** Samsung Heavy Industries (SHI) **Process**: Seawater Coarse & Ultrafiltration **Country:** Nigeria **Contract Description:** Supply of Seawater Coarse, Ultra-filtration (UF) Packages **Contract Start Date:** June 2014 **Contract Completion Date:** January 2016 **UF Capacity:** 545,359 BPD (86,712 m3/day) **UF Seawater Recovery:** N/A **Coarse Permeate Output**: <100 micron particles at 98% Efficiency **UF Permeate Output:** 0.01µm & SDI (Silt Density Index) <2.5 ![](/sites/g/files/dvc3331/files/styles/default/public/image/2020/06/Egina.jpg.webp?itok=4BiBweSk) **Project Description:** Total FPSO for Egina Field offshore Nigeria. The Ultrafiltration package has a capacity of 545,359 BPD (86,712 m3/day) and will be installed on the FPSO topsides to provide the necessary seawater treatment for the water injection system. **Project Scope:** The Ultrafiltration Package comprises a single-lift UF membrane module with integral CIP System. Eight UF membrane racks, each rack comprising three (3) multi-element vessels (MEV’s), are provided to allow for 1 rack on backwash and 1 spare, which can be taken off-line for maintenance. The fine filtered seawater (0.01µm) from the UF system provides the feed for the Water Injection Package. Ultrafiltration provides a significant weight/footprint reduction and improved water quality compared with conventional seawater filtration technology. The UF Package also comprises a Clean-in-Place (CIP) skid and a centralised UCP (P2 Type Package Control) installed within the LER. **Process Description:** Pressurised seawater is supplied to the UF system from upstream coarse filters. UF hollow fibre membranes, installed in multi-element housings, are arranged in multiple racks with back-flushing performed using treated water from the downstream UF Backwash Tank. In addition, provision for hypochlorite dosing is provided to facilitate clean in-place of the membrane arrays. Filtered water from the UF Package provides feed water to the downstream water injection system.