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Membrane Technology

Membrane Technology. Produced Water. Membrane Classifications. Micro filtration .1 to 1 Micron Ultra filtration 6K to 100K MWCO Thin-Film UF 500, 1000, 2000, 3000 and 3500 MWCO Nan filtration 150 to 500 MWCO Reverse Osmosis 50 to 150 MWCO. INSIDE THE M-SERIES MEMBRANE ELEMENT.

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Membrane Technology

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  1. Membrane Technology Produced Water

  2. Membrane Classifications • Micro filtration .1 to 1 Micron • Ultra filtration 6K to 100K MWCO • Thin-Film UF 500, 1000, 2000, 3000 and 3500 MWCO • Nan filtration 150 to 500 MWCO • Reverse Osmosis 50 to 150 MWCO

  3. INSIDE THE M-SERIES MEMBRANE ELEMENT M-Series elements are comprised of severaldifferent components, including permeatecarriers, supports, membranes, glues andfeed spacers Construction design maximizes the amountof surface area per element

  4. M-SERIES SPIRAL WOUND ELEMENT CHARACTERISTICS • Operating up to 190°F • pH range 2 to 10 • 0.01 or 0.06 micron pore size • Usually 10 to 50 psi operating pressure

  5. ULTRAFILIC MEMBRANE: ASYMMETRIC PORE MORPHOLOGY Oil and dirt molecules are rejected at the surface rather than being irreversibly entrapped in the depths of the pore

  6. ULTRAFILIC MEMBRANES ARE OLEOPHOBIC A smaller contact angle correlates with a more hydrophilic surface and less fouling by free oils and highly concentrated oil emulsions

  7. “FOULING FREE” TECHNOLOGY To avoid “free oil” fouling, the UltraFilic membrane is engineered to be extremely hydrophilic (water attracting), as opposed to conventional oleophilic (oil attracting) membranes

  8. MembraneTechnologyGE Osmonics Produced Water Pilot Research Plant Levers 2 Well Site Devon Energy Production Co. Western Environmental Management Corp. Ltd.

  9. Devon Energy Production Co.

  10. PRODUCED WATER 3-Step Membrane Process From Devon Produced Water Storage Concentrate Flow Ultrafiltration 130º Fº 60 PSI Permeate Flow Concentrate Flow Nanofiltration 130º F 140 PSI Permeate Flow Concentrate Flow Reverse Osmosis 130º F Permeate Flow 500 PSI

  11. PRODUCED WATERResearch Pilot Plant 3-Pass UF Membrane Process From Devon Produced Water Storage Ultrafiltration 130º F 1st Passº 60 psig 48 psig Recycle Flow 7.5 gpm Ultrafiltration 130º F 2nd Pass Permeate Flow 5.0 gpm 36 psig Ultrafiltration 130º F 3rd Pass Concentrate Flow 2.5 gpm 24 psig

  12. Feed Ca 632 mg/l Mg 68 mg/l Sodium 3137 mg/l Sulfate 2907 mg/l Chlorides 3915 mg/l pH 5.95 TDS 10,833 mg/l Cond* 16,400 umhos TOC 29 mg/l Oil & Grease N/A Permeate Ca 576 mg/l Mg 148 mg/l Sodium 3201 mg/l Sulfate 2944 mg/l Chlorides 4118 mg/l pH 6.33 TDS 11,158 mg/l Cond* 16,700 umhos TOC 11.9 mg/l Oil & Grease N/A Lab Test ResultsUltrafiltration Process

  13. ULTRAFILTRATION Concentrate Permeate

  14. PRODUCED WATERResearch Pilot Plant 2-Pass Nanofiltration Membrane Process From Ultrafiltration Permeate Water Storage Nanofiltration 130º F 1st Passº 140 psig Recycle Flow 17 gpm Permeate Flow 3.0 gpm 130 psig Nanofiltration 130º F 2nd pass 120 psig Concentrate Flow 1.5 gpm

  15. Feed Ca 632 mg/l Mg 148 mg/l Sodium 3137 mg/l Sulfate 2944 mg/l Chlorides 4118 mg/l pH 6.33 TDS 11,158 mg/l Cond* 16,700 umhos TOC 11.9 mg/l Oil & Grease N/A Permeate Ca 98 mg/l Mg 16 mg/l Sodium 3201 mg/l Sulfate 50 mg/l Chlorides 3976 mg/l pH 6.43 TDS 6,835 mg/l Cond* 12,050 umhos TOC 7.71 mg/l Oil & Grease N/A Lab Test ResultsNanofiltration Process

  16. PRODUCED WATERResearch Pilot Plant 1-Pass Reverse Osmosis Membrane Process From Nanofiltration Permeate Water Storage Permeate Flow 2.5 gpm Reverse Osmosis 130º F 500 psig Single Pass Concentrate Flow 1.0 gpm Recycle Flow 11 gpm

  17. Feed Ca 98 mg/l Mg 16 mg/l Sodium 3201 mg/l Sulfate 50 mg/l Chlorides 3976 mg/l pH 6.43 TDS 6,835 mg/l Cond* 12,050 umhos TOC 7.71 mg/l Oil & Grease N/A Permeate Ca 10 mg/l Mg 0 mg/l Sodium 339 mg/l Sulfate 3 mg/l Chlorides 483 mg/l pH 6.39 TDS 933 mg/l Cond* 1,690 umhos TOC 2.85 mg/l Oil & Grease N/A Lab Test ResultsReverse Osmosis Process

  18. Projected Energy Costs perOne Million Gallons per Day Pretreatment 20 Hp $0.0012/bbl* Ultrafiltration 100 Hp $0.006/bbl* Nanofiltration 200 Hp $0.012/bbl* Reverse Osmosis 400 Hp $0.024/bbl* *Based on an electric cost of $0.08/kwh

  19. MembraneTechnology Produced Water Prior Testing

  20. BAKERSFIELD CALIFORNIA OIL FIELD Pilot Test Project Perfomed by Osmonics

  21. Shell Oil Refinery Surface Waste Water System 50-100 ppm Oil & 40 ppm S.S. Equalization Tank Collects all Run-off Water from Refinery Perimeter Heat Exchanger Raises temperature to 45° C. 5% Volume Back To Collection Tank Conventional Filtration 50 Micron 95 % Discharged into Manila Bay 0 ppm Oil and S.S. ULTAFILTRATION M-Series <50-100 ppm Oil & < 25 ppm S.S.

  22. Coal Bed Methane Produced Water Process Iron and Barium Control Equalization Tank Collects Produced Water from New Methane Gas Wells Screen Filtration 50 Micron 10 % Concentrate to Evaporation Pond Cartridge Filtration 20 Micron Followed by 5 micron 90 % Surface Discharged Quality RO Permeate Duraslick Low Fouling RO

  23. Ambient Temperature Produced Water < 20 ppm Oil & <50 ppm S.S. Methane Gas DAF 8-10% Volume Back To DAF Conventional Filtration 25 Micron 90-92 % as Formation Re-pressurization 0 ppm Oil and S.S. ULTAFILTRATION <10-20 ppm Oil &< 25 ppm S.S.

  24. Membrane SAGD Process RO Permeate 90-95% of Initial Feed 3- Pass (UF-NF-RO) Membrane System Low Silica, Hardness and TDS New Option 5-10% Deep Well Or Hot Lime Disposal Existing 25% Back To RO 97-99% Steam Conventional High Pressure Steam Boiler 75% as Steam Steam Generator 1-3% Blowdown

  25. Methane from CBM Produced Water Prefilter 5 Micron Polypro DS-7 Gas Membrane System Assumes at least 5-10 psi net driving pressure With enough Pressure vacuum is Not necessary Vacuum Pump or Aspirator Optional: One could Supply a low pressure Water Pump20-50 psi, as opposed To pulling a vacuum, Whatever Is Easiest. Produced Water Stripped of CH4 Enriched Methane Gas

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