Removing problematic sulphates from abundantly available seawater to boost oil recovery operations GE WATER & PROCESS TECHNOLOGIES Nauman Rashid Marketing Director - MEA AIml Kaghionbaatri oOnc atotb wero r1k9., 2017 * Trademark of General Electric Company, may be registered in one or more countries. Saudi Arabia and Water Sustainability 14.5 100 90 80 70 10 75 10 60 8 3m % 50 k 5 5 ,e g a tn 25 e c r e P 0 0 2010 2015 2020 2030 2040 2010 2015 2020 2030 2040 Credit: GWI Credit: GWI Annual non-renewable water Use of renewable water 100 100 100 80 75 % 60 ,e g a 50 tn e c r e P 25 0 Credit: IOSR-JCE 2010 2015 2020 2030 2040 Credit: GWI TSE Reuse Aquifers abstraction > 90% non-renewable water The O&G Water Journey SeaWater Produced Water Oil Why remove sulfate? • Prevents strontium and barium sulfate scale in injection wells • Better well souring mitigation by reducing the incoming sulfate Water Solids Removal and NanoFiltration (NF) Nano Filtration based water softening NF Capabilities • Membrane based treatment Ion ~ Reduction • Reduces Mono, Di and Tri-valent ions Na, K, Cl 3 - 12 % • High recovery (~ 70% vs. ~ 45% for RO) • Smooth surface leading to minimal fouling Ca, Mg 84 - 96% • Minimizes chemical consumption SO 99 % 4 Overall TDS 19% GE Technologies for Seawater Injection Ultra Filtration (UF) Nano Filtration (NF) Reverse Osmosis (RO) Membrane Fiber ZW500 Introduction of new NF ZW1500 elements for sulphate removal • Sulphate removal for • Sulphate removal and • Removes solids > 0.01 µm reservoir souring and salinity reduction for EOR • Enables matrix flooding scales prevention Advanced pre-treatment: Ultrafiltration GE has one of the most diversified UF technology portfolios with a significant global installed base GE ZW700B: Optimized across many industries for Offshore O&G Sulfate Removal by Nanofiltration (NF) • Proprietary sulfate removal NF membrane for O&G • Excellent sulfate and hardness removal properties • An absolute barrier for any suspended matter including particles, colloidal silica and bacterial matters • 3-layer design minimizes fouling and maximizes life • Minimizes scale formation, well plugging, well souring • Maximizes area per element to reduce footprint & weight • Fabricated using state of the art automated manufacturing process to ensure quality consistency GE Surface Polyamide Proprietary roughness Thin Film Layer magnification. Minimizes fouling adherence. Polysulfon Polyester non e GE proprietary 440 ft2 400 ft2 woven material Layer Classic PA layer layer GE’s latest NF membrane mitigates scale and H S by significantly reducing sulfate, magnesium and 2 calcium present in seawater. It exhibits lower fouling, improved cleaning, and extended membrane life. Typical Membrane Problems in a Sulfate Removal Unit or Low Salinity System Why problems occur Membrane issues System implications • Small pore size of • Fouling and scaling • High sulfate NF and RO • Higher pressure passage causes membranes drop scale in oil reservoir • Concentration factor • Loss of flux • High operation cost • Membrane • Membrane impacts project roughness degradation economics • Chemical incompatibility Modular, Pre-Engineered Platforms Vast Experience Reliable Scaleable Quick deliveries UF System selection – horizontal multi element vessel design Standard Standard RO or NF ZW700B skid Skid