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E FFECTIVE & ECONOMIC SURFACTANTS FOR IOR Oil Chem Technologies, Inc. Sugar Land, TX

E FFECTIVE & ECONOMIC SURFACTANTS FOR IOR Oil Chem Technologies, Inc. Sugar Land, TX. WHAT COMES TO MIND WHEN THE PRODUCTION OF YOUR WELLS START TO DECLINE?. Primary Recovery. Secondary Recovery. Tertiary Recovery. Thermal. Gas. Chemical. Primary Recovery. Secondary Recovery.

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E FFECTIVE & ECONOMIC SURFACTANTS FOR IOR Oil Chem Technologies, Inc. Sugar Land, TX

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  1. EFFECTIVE & ECONOMIC SURFACTANTS FOR IOROil Chem Technologies, Inc.Sugar Land, TX

  2. WHAT COMES TO MIND WHEN THE PRODUCTION OF YOUR WELLS START TO DECLINE?

  3. Primary Recovery Secondary Recovery Tertiary Recovery Thermal Gas Chemical

  4. Primary Recovery Secondary Recovery Tertiary Recovery Thermal Gas Chemical

  5. IOR BY CHEMICAL FLOOD Never really took off the ground for the past two decades: - Reasons? • Sensitivity to oil price • Large up-front investment • Unpredictable return on investment

  6. However, • Extensive lab evaluations support the feasibility of chemical flooding • Field data proves chemical flooding is an effective way to recover residual oil • New chemicals and processes open the door for new opportunities

  7. HOW TO REACH SUCCESS?

  8. Select the proper project • Utilize the expertise of all involved • Chemical optimization • Cost efficiency • Evaluate the lab results • Select the best process • Start the project

  9. Select the proper project • Utilize the expertise of all involved • Chemical optimization • Cost efficiency • Evaluate the lab results • Select the best process • Start the project

  10. OIL CHEM TECHNOLOGIESWHAT MAKES US DIFFERENT…... • State-of-the-art IOR surfactants • Many years of research & industrial experience • Field proven products • Customized products for each project • One process or product doesn’t fit all

  11. PRESENTATION OUTLINE • Why do we need surfactant • ASP • LASP • Super Surfactant • New products & new ideas • IOR by adsorption-desorption • IOR by recycling effluent • Smart Surfactant • Scaling up • New arylalkyl sulfonate

  12. PRESENTATION OUTLINE • Why do we need surfactant • ASP • LASP • Super Surfactant • New products & new ideas • IOR by adsorption-desorption • IOR by recycling effluent • Smart Surfactant • Scaling up • New arylalkyl sulfonate

  13. RELATIONSHIP BETWEEN CAPILLARY NUMBER AND OIL RECOVERY Nc =  µ / Nc =Capillary Number  = Darcy Velocity µ = Viscosity  = Interfacial Tension Chatzis and Morrow, SPEJ, (1994) 561.

  14. PRESENTATION OUTLINE • Why do we need surfactant • ASP • LASP • Super Surfactant • New products & new ideas • IOR by adsorption-desorption • IOR by recycling effluent • Smart Surfactant • Scaling Up • New arylalkyl sulfonate

  15. ASP SURFACTANTSORS & ORS-HF SERIES

  16. ADVANTAGES • Field Proven • Consistent quality • Low concentration required • One component system • Low viscosity

  17. SHO-VEL-TUM FIELD • On production > 40 yrs, extensive water flood, produced 4 bbl/day • ASP started on 2/98, using Na2CO3 and ORS-62 • Total incremental oil > 10,444 bbl in 1.3 years SPE 84904

  18. OIL SATURATION AFTER ASP INJECTION SPE 84904

  19. ORS-62HF(2) ORS-46HF ORS-41 SS-7593 ORS-97 ORS-41HF ORS-62 SS-B6688 ORS-57HF ORS-41HF INJECTED, ON-GOING & APPROVED PROJECTS

  20. SELECTED REFERENCES USING ORS SURFACTANTS • SPE 84904, 84075, 71491, 57288, 49018, 36748 • Hart’s Petroleum Engineering International, Dec. 1998. • DOE/PC/910087-0328 (OSTI ID: 3994)

  21. PRESENTATION OUTLINE • Why do we need surfactant • ASP • LASP • Super Surfactant • New products & new ideas • IOR by adsorption-desorption • IOR by recycling effluent • Smart Surfactant • Scaling up • New arylalkyl sulfonate

  22. LOW ALKALI SURFACTANT POLYMER FLOOD (LASP)

  23. ASP - POTENTIAL PROBLEMS? After extensive ASP flood in China, results were successful, however: • Alkali causes corrosion of the equipment • Scale forms in the formation • Produced wells plugged and require fracturing treatment to produce oil again • Alkali is detrimental to polymer viscosity • Extra polymer, NaOH and maintenance costs SPE 71492, 71061

  24. ASP LASP • Combines the advantages of ASP and SP • Use 0.1 – 0.6% alkali • Reduces surfactant adsorption • Reduces polymer degradation • Reduce the maintenance cost • Reduce the scale formation • Reduces the total cost of the treatment

  25. ASP vs. LASPCommon ASP: 0.1% surf. / 1.0% NaOH Common LASP: 0.1% surf. / 0.2% NaOH

  26. LASP - IFT vs. % NaOH 0.1% ORS-62HF, TDS ~ 3,500 ppm, API Gravity ~ 40, Temp ~ 40 C,

  27. PRESENTATION OUTLINE • Why do we need surfactant • ASP • LASP • Super Surfactant • New products & new ideas • IOR by adsorption-desorption • IOR by recycling effluent • Smart Surfactant • Scaling up • New arylalkyl sulfonate

  28. SUPER SURFACTANTS SS Series

  29. ADVANTAGES • Super Effective • Ultra-Low concentration required (0.02% - 0.2%) • Provides ultra-low IFT • Super Convenient • No alkali is required • No water treatment is required

  30. ADVANTAGES - Continued • Super Tolerant • High TDS brine • High divalent cations • High temperatures

  31. ADVANTAGES - Continued • Super Savings • Surfactant • Alkali • Polymer • Water treatment • Sludge disposal • Surface equipment • Potential scale formation • Equipment maintenance

  32. SS IN HIGH SALINITY BRINETDS ~190,000ppm, Ca, Mg ~ 95,000 ppm Temp. ~ 50 C, API Gravity ~ 35

  33. SS IN HIGH TEMP. HEAVY CRUDETDS ~ 250 PPM, TEMP.~ 100 C, API GRAVITY~15

  34. SELECTED REFERENCES USING SS SURFACTANTS • SPE 75186 – SPE IOR Meeting, April, 2002 • SPE 80237 – SPE Oil Field Chemistry Meeting, Feb., 2003

  35. ON-GOING LAB EVALUATION STAGE PROJECTS

  36. PRESENTATION OUTLINE • Why do we need surfactant • ASP • LASP • Super Surfactant • New products & new ideas • IOR by adsorption-desorption • IOR by recycling effluent • Smart Surfactant • Scaling up • New arylalkyl sulfonate

  37. PRESENTATION OUTLINE • Why do we need surfactant • ASP • LASP • Super Surfactant • New products & new ideas • IOR by adsorption-desorption • IOR by recycling effluent • Smart Surfactant • Scaling up • New arylalkyl sulfonate

  38. IOR BY SURFACTANT ADSORPTION-DESORPTION • Surfactant lost through adsorption • Changes disadvantage to advantage • Desorbing the adsorbed surfactant • Reduce IFT • Recovers additional oil J.Pet. Sci. & Eng. 2004

  39. IOR BY SURFACTANT ADSORPTION-DESORPTION w A/S A/S/W A/S/A J.Pet. Sci. & Eng. 2004

  40. IOR BY RECYCLING ASP EFFLUENT • Residual surfactant, polymer, alkali present in the effluent • Process identifies chemicals in effluent and recycles back to reservoir • Savings on chemical costs • Savings on disposal & treatment costs • Recovers additional oil over ASP SPE 84075

  41. IOR BY RECYCLING ASP EFFLUENT 0.15% ORS-62HF, 1.0% NaOH, 1000 PPM polymer SPE 84075

  42. PRESENTATION OUTLINE • Why do we need surfactant • ASP • LASP • Super Surfactant • New products & new ideas • IOR by adsorption-desorption • IOR by recycling effluent • Smart Surfactant • Scaling up • New arylalkyl sulfonate

  43. SMART SURFACTANT • One component system • Provides low IFT and proper viscosity • Salt and divalent cation tolerant • No water treatment required • No polymer required • No dissolving or hydration unit required • Minimal up-front investment • Minimal risk factor US Patent Pending

  44. WATER FLOOD Injector Producer

  45. WATER FLOOD Injector Producer

  46. WATER FLOOD Injector Producer

  47. WATER FLOOD Injector Producer

  48. WATER FLOOD Injector Producer

  49. WATER FLOOD Injector Producer

  50. WATER FLOOD Injector Producer

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