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해저 석유생산시스템에서 유동안정성 확보를 위한 왁스집적 제어기술

Flow Assurance Technologies for Mitigating Wax Deposition in Subsea Petroleum Production System

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참고문헌

키워드

주제분류자원공학

초록

해저와 같은 저온환경에서 석유생산 시 빈번히 집적되는 왁스는 저류층에서 석유에 용해되어 있으나 석유의 온도가 왁스생성온도 이하가 되면 결정으로 석출된다. 왁스결정은 서로 결합하면서 오일 등을 함유한 왁스고형물이 되고 석유생산 환경에 따라 분자확산, 전단응력효과, 왁스경화, 확산관성효과, 전단확산, 브라운확산, 중력침전으로 유동관 내벽에서부터 집적된다. 온도, 석유성분, 압력, 유량, 유동관 내벽 거칠기가 왁스집적에 영향을 미칠 수 있으나 일반적으로 유동관 내벽의 온도와 유동단면적 중앙의 온도구배가 왁스집적에 가장 큰 영향을 미친다. 석유의 온도감소율이 커서 왁스집적속도가 가장 빠른 유동관에서의 주요 왁스집적 제어기술은 유동관을 단열 또는 석유를 가열하여 왁스생성온도 이상으로 유지시키는 열제어법, 왁스결정의 성장을 막거나 용해시키는 왁스억제제 주입법, 유동관에 집적된 왁스를 긁어 제거하는 피깅이 있고 이들을 멕시코 만에 위치한 King 유전, Gannet D 유전과 북해에 위치한 Cottonwood 유전의 해저 석유생산시스템에 적용한 사례를 조사하였다.

Abstract

Wax has been serious problem of flow assurance in low temperature environment such as subsea petroleum production system. In reservoir condition, wax is liquid phase, however, it can be crystallized at the temperature under wax appearance temperature. Wax crystal tends to be agglomerated and deposited containing oil, which becomes wax deposits. Wax deposition mechanisms in subsea petroleum production system are molecular diffusion, shear stripping reduction, aging, particle diffusion & inertia effect, shear dispersion, brownian diffusion and gravity settling. Commonly, temperature gradient between internal wall and center flow is major influential factor on wax deposition among oil composition, pressure, flow rate and roughness of flow line wall. To mitigate wax deposition in the subsea production system, thermal management, wax inhibitor and pigging have been widely applied. These technologies and applications at King field, Gannet D field and Cottonwood field are investigated in this study.

참고문헌 (71)

  1. Akbarzadeh, K, "Introduction to a Novel Approach for Modeling Wax Deposition in Fluid Flow. 1. Taylor-Coutte System", Industrial & Engineering Chemistry Research, 47(3), pp.953~963 (2008)
  2. Allen, O.T., "Production Operations : Volume 2", pp.16~ (1982), Oil & Gas Consultants International Inc.
  3. Azevedo, L.F.A., "A Critical Review of the Modeling of Wax Deposition Mechanisms", Petroleum Science and Technology, 3(21), pp.393~408 (2003)
  4. Bacon, M.M., "Optimizing Paraffin and Naphthene Wax-Treatment Options Using Cross-Polarized Microscopy", SPE International Symposium on Oilfield Chemistry held in The Woodlands, U.S.A, pp.11~13 (2011)
  5. Bagatin, R, "Wax Modeling : There is Need for Alternatives", SPE Russian Oil & Gas Technology Conference and Exhibition held in Moscow, Russia, pp.28~30 (2008)
  6. Becker, J.R., "Oilfield Paraffin Treatments : Hot Oil and Hot Water Compared to Crystal Modifiers", SPE Annual Technical Conference and Exhibition held in Dallas, U.S.A., pp.1~4 (2000)
  7. Bern, P.A., "Wax Deposition in Crude Oil Pipelines", European Offshore Technology Conference and Exhibition held in London, U.K., pp.21~24 (1980)
  8. Bott, T., "Deposition of paraffin wax from kerosene in cooled heat exchanger tubes", The Canadian Journal of Chemical Engineering, 55(4), pp.381~385 (1977)
  9. Brower, D. V., "Real-time Flow Assurance Monitoring with Non-Intrusive Fiber Optic Technology", paper 17376 presented at the Offshore Technology Conference held in Houston, pp.2~5 (2005)
  10. Brown, T.S., "Measurement and Prediction of the Kinetics of Paraffin Deposition", 68th SPE Annual Technical Conference and Exhibition held in Houston, U.S.A, pp.3~6 (1993)
  11. Brown, T.S., "The Effects of Light Ends and High Pressure on Paraffin Formation", paper 28505 presented at the 69th SPE Annual Technical Conference and Exhibition held in New Orleans, pp.25~28 (1994)
  12. Burger, E.D., "Studies of Wax Deposition in the Trans Alaska Pipeline", J. of Petroleum Technology, 33(6), pp.1075~1086 (1981)
  13. Carbognani, L., "Complex Nature of Separated Solid Phases from Crude Oils", Energy and Fuels, 13(2), pp.351~358 (1999)
  14. Charles, J.G., "Unique Paraffin Inhibition Technique Reduces Well Maintenance", J. of Canadian Petroleum Technology, 25(4), pp.40~44 (1986)
  15. Cole, R.J., "Paraffin Deposition", Oil and Gas Journal, 58, pp.87~ (1960)
  16. Craddock, H.A, "A Case Study in the Removal of Deposited Wax From a Major Subsea Flowline System in the Gannet Field", paper 105048 presented at the SPE International Symposium in Oilfield Chemistry held in Houston (2007)
  17. Dobbs, B.J., "A Unique Method of Paraffin Control in Production Operations", SPE Rocky Mountain Regional Meeting held in Gillette, U.S.A. (1999)
  18. Eaton, F.E., "Paraffin Deposition in Flow Lines", 16th National Heat Transfer Conference held in St. Louis, U.S.A. (1976)
  19. Erickson, D.D., "Thermodynamic Measurement and Prediction of Paraffin Precipitation in Crude Oil", paper 26604 presented at the 68th SPE Annual Technical Conference and Exhibition held in Houston, pp.3~6 (1993)
  20. Esaklul, K. A., "Active Heating For Flow Assurance Control in Deepwater Flowlines", Offshore Technology Conference held in Houston, U.S.A. (2003)
  21. Fasano, A, "Mathematical Models for Waxy Crude Oils", Meccanica, 39(5), pp.441~482 (2004)
  22. Ferworn, K.A., "Control of Wax Deposition: An Experimental Investigation of Crystal Morphology and an Evaluation of Various Chemical Solvents", SPE paper 37240 presented at the International Symposium on Oil Field Chemistry held in Houston (1997)
  23. Fleyfel, F., "Evaluation of Pipeline Configurations with Active Heating for Export of Waxy Crude Oil", SPE Annual Technical Conference and Exhibition held in Houston, U.S.A (2004)
  24. Frenier, W.W., "Organic Deposits in Oil and Gas Production", SPE, Richardson, U.S.A, ~ (2010)
  25. Ghanaei, E., "Evaluation of Activity Coefficient Models in Prediction of Wax Appearance Temperature", paper 101371 presented at the 2006 Abu Dhabi International Petroleum Exhibition and Conference held in Abu Dhabi, pp.5~8 (2006)
  26. Haddad, S., "Using Multiple Reservoir Measurement to Improve Subsurface Description in Deepwater Gulf of Mexico: King Field", paper 84380 presented at SPE Annual Technical Conference and Exhibition held in Denver (2003)
  27. Hammami, A., "Paraffin Deposition from Crude Oils: Comparison of Laboratory Results with Field Data", SPE Journal, 4(1), pp.9~18 (1999)
  28. Hammami, A., "Cloud Points: Can We Measure or Model Them", Petroleum Science and Technology, 21(3-4), pp.345~358 (2003)
  29. Hsu, J.J., "Wax Deposition of Waxy Live Crudes under Turbulent Flow Conditions", paper 28480 presented at 69th SPE Annual Technical Conference and Exhibition held in New Orleans (1994)
  30. Huanquan, P., "Pressure and Composition Effect on Wax Precipitation: Experimental Data and Model Results", SPE Journal, 12(4), pp.250~258 (1997)
  31. Hunt, J.R., "Laboratory Study of Paraffin Deposition", J. of Petroleum Technology, 14(11), pp.1259~1269 (1962)
  32. Jennings, W.D, "Application of Paraffin Inhibitor Treatment Programs in Offshore Developments", paper 19154 presented at Offshore Technology Conference held in Houston (2008)
  33. Jessen, F.W., "Effect of Flow Rate on Paraffin Accumulation in Plastic, Steel, and Coated Pipe", Petroleum Transactions, 213, pp.80~84 (1958)
  34. Jorda, R.M., "Paraffin Deposition and Prevention in Oil Wells", J. of Petroleum Technology, 18(12), pp.1605~1612 (1966)
  35. Kulkarni, M.M., "Effects of Pour-point Depressants on Indian Crude Oils", paper 95976 presented at the SPE Annual Technical Conference and Exhibition held in Dallas (2005)
  36. Kulkarni, V.B., "Determination and Prediction of Wax Deposition from Alaska North Slope Crude Oil", IPTC paper 11972 presented at International Petroleum Technology Conference held in Kuala Lumpur, pp.3~5 (2008)
  37. Lee, H.S., "Computational and Rheological Study of Wax Deposition and Gelation in Subsea Pipelines", 박사, pp.2008
  38. Leontaritis, K.J., "Cloud Point and Wax Deposition Measurement Techniques", paper 80267 presented at the SPE International Symposium on Oilfield Chemistry held in Houston (2003)
  39. Lim, J.S, "Flow Assurance Technology in Petroleum Production System", J. of Petroleum, 26, pp.68~85 (2010)
  40. 임종세, "해저 석유 생산시스템 내 유동안정성 확보를 위한 불투명 오일의 왁스생성온도 측정법", 한국마린엔지니어링학회지, 36(1), pp.185~194 (2012), 한국마린엔지니어링학회
  41. Manka, S.J., "A Novel Method to Winterize Traditional Pour Point Depressants", paper 56571 presented at SPE Annual Technical Conference and Exhibition held in Houston (1999)
  42. Michel, J., "Oil Spill Dispersants: Efficacy and Effects", pp.52~53 (2005), The National Academies Press
  43. Mohammed, A.Y., "Paraffin Wax Deposition: Mitigation & Removal Techniques", paper 155412 presented at the SPE Young Professionals Technical Symposium held in Dhahran, pp.14~16 (2011)
  44. Mokhatab, S., "Deepwater risk-1: Challenges risks can be managed in deepwater oil and gas projects", Oil and Gas Journal, 104, pp.37~42 (2008)
  45. Monger-McClure, T.G., "Comparisons of Cloud Point Measurement and Paraffin Prediction Methods", SPE Production & Facilities, 14, pp.4~16 (1999)
  46. Evaluation of Wax Deposition and Its Control During Production of Alaska North Slope Oils, "NETL", Office of Fossil Energy, U.S.A, ~, pp.DOE Award No. : DE-FC26-01NT41248 (2008)
  47. Nazar, A., "Experimental and Mathematical Modeling of Wax Deposition and Propagation in Pipes Transporting Crude Oil", SPE paper 67328 presented at the Production and Operations Symposium held in Oklahoma City (2001)
  48. Nghiem, L.X., "Petroleum Engineering Handbook : Volume Ⅰ", General Engineering, SPE, Texas, U.S.A, 397~453 (2006)
  49. O’conner, P., "Petroleum Engineering Handbook : Volume Ⅲ", Facilities and Construction Engineering, SPE, Richardson, U.S.A, 554~555 (2007)
  50. Patton, C.C., "Paraffin Deposition from Refined Wax-Solvent Systems", SPE Journal, 10(1), pp.17~24 (1970)
  51. "Pipeline Engineering" (2012)[URL]
  52. "Pipeline Research Limited" (2012)[URL]
  53. Poole, G., "Successful Pipeline Clean Out-Lessons Learned From Cleaning Paraffin Blockage From a Deepwater Pipeline", SPE Annual Technical Conference and Exhibition held in Denver, U.S.A., pp.21~24 (2008)
  54. Rebecca, F.R., "Direct Electrical Heating of Flowlines – Guide to Uses and Benefits", 22631 presented at Offshore Technology Conference, pp.4~6 (2011)
  55. Rubel, M.T., "Flowline Insulation Thermal Requirements for Deepwater Subsea Pipelines", paper 28481 presented at SPE Annual Technical Conference and Exhibition held in New Orleans, pp.25~28 (1994)
  56. Ruschau, G.R., "Evaluation and Qualification of Materials for Subsea Insulation Systems", paper 131618 presented at the CPS, 2010, 8~10
  57. Rosvold, K., "Wax Deposition Models", 석사, pp.2008
  58. Sadeghazad, A., "The Effect of Cloud Point Temperature on Wax Deposition", paper 49467 presented at 8th Abu Dhabi International Petroleum Exhibition and Conference held in Abu Dhabi, pp.11~14 (1998)
  59. Shecaira, F., "The Cottonwood Field Case History : The Pig", Paraffin Obstruction of a Long Subsea, Deepwater Tie-back and Its Successful Remediation, 2011, ~
  60. Singh, P, "Formation and Aging of Incipient Thin Film Wax-Oil Gels", AJChE Journal, 46(5), pp.1059~1074 (2000)
  61. Singh, P., "Morphological Evolution of Thick Wax Deposits during Aging", AJChE Journal, 47(1), pp.6~18 (2001)
  62. "Shell Expro" (2001)[URL]
  63. Stevens, R.S., "Petroleum Engineering Handbook : Volume Ⅲ", Facilities and Construction Engineering, SPE, Texas, U.S.A, 380~387 (2007)
  64. 성원모, "국내 석유자원량 분류체계의 표준화", 한국자원공학회지, 46(4), pp.498~508 (2009), 한국자원공학회
  65. Svetgoff, J., "Paraffin Problem Can Be Resolved with Chemicals", J. of Oil & Gas, 82, pp.79~82 (1984)
  66. Thant, M.M.M., "Mitigating Flow Assurance Challenges in Deepwater Field using Active Heating Methods", paper 140997 presented at the SPE Middle East Oil and Show and Conference held in Manama, pp.25~28 (2011)
  67. Todi, S, "Experimental and Modeling Studies of Wax Deposition in Crude Oil Carrying Pipelines", 박사, pp.2005
  68. Uba, E., "Measurement of Wax Appearance Temperature of an Offshore Live Crude Oil using Laboratory Light Transmission Method", presented at the 28th Annual SPE International Technical Conference and Exhibition held in Abuja, pp.2~4 (2004)
  69. Wang, S., "Productivity Decline of Vertical and Horizontal Wells by Asphaltene Deposition in Petroleum Reservoirs", SPE International Symposium on Oilfield Chemistry, Houston, U.S.A, pp.13~16 (2001)
  70. Wasden, F.K., "Flow Assurance in Deepwater Flowlines and Pipelines-Challenged Met, Challenges Remaining", Offshore Technology Conference held in Houston, U.S.A, pp.5~8 (2003)
  71. Wylde, J.J., "Considerations and Lessons Learned on Development of Gas-Lift Paraffin Inhibitors of Subsea Wells in the Gulf of Mexico", Offshore Technology Conference held in Houston, U.S.A (2012)

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