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Bioremediation Of Drill Cuttings In An Arid Bioremediation Of Drill Cuttings In An Arid

Bioremediation Of Drill Cuttings In An Arid<br>Bioremediation Of Drill Cuttings In An Arid<br>

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Bioremediation Of Drill Cuttings In An Arid Bioremediation Of Drill Cuttings In An Arid

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  1. Bioremediation Of Drill Cuttings In An Arid Bioremediation Of Drill Cuttings In An Arid Climate Climate RemTec 2003 OCTOBER 15-17, 2003 BANFF, ALBERTA

  2. Approach • Project Objectives • Preliminary Tasks • Environmental Constraints • Current Progress

  3. Approach Project Objectives • Technology transfer with local company • To conduct the project in a safe and environmentally prudent manner • To bioremediate the organic constituents in oil- based drill cuttings. • Determine the most optimum onsite technique.

  4. Background • Independent E& P company • Operate in 13 Countries • Operations in Egypt since 1995 • 11,500 BOE/Day • 165 Employees

  5. Background

  6. Background

  7. Background

  8. Background

  9. Tasks Preliminary Tasks: • Identify local contractors • Determine site location • Identify heavy equipment availability • Collect and analyze soil samples • Collect and analyze oil-based drill cuttings

  10. Constraints Environmental Constraints: • Arid climate • High evaporation rate • Extreme temperatures • Lack of nutrients • Lack of microorganisms

  11. Construction System Design: • Area: 1 Hectare • 20 ml liner • Soil berms-3 ft high • Plot layout

  12. Construction

  13. Construction

  14. Construction

  15. Construction

  16. Treatments 4 Test Amendments Plastic Cover & Manure 4 Plastic Cover & Fertilizer 3 Straw Cover & Manure 1 Straw Cover & Fertilizer 2

  17. Treatments

  18. Treatments

  19. Treatments

  20. Treatments

  21. Treatments

  22. Monitoring Program Field Monitoring ? pH ? Moisture content ? Temperature ? Conductivity • Monitoring determined frequency of aeration, watering, and nutrients

  23. Monitoring Program

  24. Laboratory Results Lab Analysis Program: • Background samples to obtain baseline data of trace metals and chloride concentrations. • Oil based drill cuttings will be sampled for oil content, trace metals, and chlorides.

  25. Laboratory Results Lab Analysis Program Continued: ? Chemical and biological analysis ? TPH ? Heavy metals (leachable) ? Chloride (or major anions) ? Phosphates ? Nitrates ? Standard Plate Count

  26. Laboratory Results Microbial Identification: Chicken Manure • Curtobacterium Albidum Bacillus sp • Thiobacillus versutus • Enterobacter agglomerans aerogenic Hydrocarbon Degraders • Acinetobacter lwoffi • Pseudomonas putida • Pseudomonas aminovorans Total Soil Bacteria Count - 11,000,000 MPN/gm

  27. Laboratory Results Section 1 - 2001 160,000 140,000 120,000 Concentration (µg/g) 100,000 EPH(nC10-nC19) EPH(nC19-nC32) 80,000 60,000 40,000 20,000 0 January April June November Sample Date

  28. Laboratory Results Section 2 - 2001 160,000 140,000 120,000 Concentration (µg/g) 100,000 EPH(nC10-nC19) EPH(nC19-nC32) 80,000 60,000 40,000 20,000 0 January April June November Sample Date

  29. Laboratory Results Section 3 - 2001 160,000 140,000 120,000 Concentration ( g/g) 100,000 EPH(nC10-nC19) EPH(nC19-nC32) 80,000 60,000 40,000 20,000 0 April June January November Sample Date

  30. Laboratory Results Section 4 - 2001 160,000 140,000 120,000 Concentration ( g/g) 100,000 EPH(nC10-nC19) EPH(nC19-nC32) 80,000 60,000 40,000 20,000 0 April June January November Sample Date

  31. Current Progress System Re-design: • Plastic covering was discontinued and straw was replaced. • Fertilizer was discontinued and manure was continued. Original Manure Original Fertilizer 2 1 Holding Area for Future Cuttings 4 3

  32. Current Progress Section 1 - 2003 160,000 140,000 Concentration (mg/g) 120,000 100,000 EPH(nC6-nC19) EPH(nC19-nC28) 80,000 60,000 40,000 20,000 0 January April June November April ** Sample Date ** April stats are TPH (nC6-nC12) and TPH (nC12-nC28) Total TPH (C6-C35) = 7600

  33. Current Progress Section 2 - 2003 160,000 140,000 Concentration (mg/g) 120,000 100,000 EPH(nC6-nC19) EPH(nC19-nC28) 80,000 60,000 40,000 20,000 0 January April June November April ** Sample Date ** April stats are TPH (nC6-nC12) and TPH (nC12-nC28) Total TPH (C6-C35) =1200

  34. Current Progress Project Objectives: Initial Goal Achieved Not Achieved √ Technology transfer √ Conduct project safely √ Bioremediate OBM √ Determine optimum technique

  35. Current Progress • September 2003: Started C-1 OBM Cuttings bioremediation. • Bioremediation has become the Devon’s preferred waste management method in Egypt. • Bioremediation has been approved by Egypt’s EEAA permitting process.

  36. Comments & Questions

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