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Journal of Hydrodynamics

, Volume 30, Issue 4, pp 701–714 | Cite as

Transient temperature and pressure calculation model of a wellbore for dual gradient drilling

  • Xue-rui Wang (王雪瑞)
  • Bao-jiang Sun (孙宝江)
  • Ping-ya Luo (罗平亚)
  • Zhi-yuan Wang (王志远)
  • Ning Wang (王宁)
  • Ke Ke (柯珂)
  • Hui Zhang (张辉)
Articles
  • 27 Downloads

Abstract

During deep-water oil and gas explorations, the dual gradient drilling (DGD) technology provides solutions to problems caused by the narrow density window and the shallow gas by controlling the pressure profile in the wellbore. A transient temperature calculation model is established with consideration of the heat generated by the pump in the specific processes of the DGD systems. Besides, the momentum equation is modified by considering the lift force of the pump on the drilling mud in the pressure calculation. An iterative scheme for the coupled temperature and pressure calculations is developed. Besides, the transient temperature and pressure are analyzed for a deep-water well in South Sea. It is shown that the bottom-hole pressure varies significantly with the transient temperature in the wellbore, and the change of the bottom-hole pressure in the case of the DGD (626 kPa) is larger than that in case of the conventional drilling (115 kPa) due to the constant inlet pressure of the subsea pump. With this fact in mind, an adequate safety margin is strongly recommended to be considered during the hydraulic parameter design of the DGD. Our results further show that the DGD can significantly extend the operation range of the drilling fluid density, and the advantage becomes more obvious in a deep water.

Key words

Dual gradient drilling (DGD) transient temperature pressure 

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References

  1. [1]
    Gao F. P. Flow-pipe-soil coupling mechanisms and predictions for submarine pipeline instability [J]. Journal of Hydrodynamics, 2017, 29(5): 763–773.CrossRefGoogle Scholar
  2. [2]
    Chen G. M., Yin Z. M., Xu L. B. et al.. Review of deepwater dual gradient drilling technology [J]. Prtroleum exploration and development, 2007, 34(2): 246–251.Google Scholar
  3. [3]
    Goldsmith R. Mudlift drilling system operations [C]. Offshors Technology Conference, Houston, Taxas, USA, 1998.Google Scholar
  4. [4]
    Eggemeyer J. C., Conoco P. E., Akins M. E. et al. Subsea mudlift drilling: Design and implementation of a dual gradient drilling system [C]. SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, USA, 2001.Google Scholar
  5. [5]
    Schumacher J. P., Dowell J. D., Ribbeck L. R. et al. Subsea mudlift drilling: Planning and preparation for the first subsea field test of a fullscale dual gradient drilling system at Green Canyon 136, Gulf of Mexico [C]. SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, USA, 2001.Google Scholar
  6. [6]
    Hasan A. R., Kabir C. S. Wellbore heat-transfer modeling and applications [J]. Journal of Petroleum Science and Engineering, 2012, 86–87: 127–136.CrossRefGoogle Scholar
  7. [7]
    Izgec B., Kabir C. S., Zhu D. et al. Transient fluid and heat flow modeling in coupled wellbore/reservoir systems [J]. SPE Reservoir Evaluation and Engineering, 2007, 10(3): 294–301.CrossRefGoogle Scholar
  8. [8]
    Li G., Yang M., Meng Y. et al. Transient heat transfer models of wellbore and formation systems during the drilling process under well kick conditions in the bottom-hole [J]. Applied Thermal Engineering, 2016, 93: 339–347.CrossRefGoogle Scholar
  9. [9]
    Cheng W. L., Han B. B., Nian Y. L. et al. Study on wellbore heat loss during hot water with multiple fluids injection in offshore well [J]. Applied Thermal Engineering, 2016, 95: 247–263.CrossRefGoogle Scholar
  10. [10]
    Jonggeun C. Analysis of riserless drilling and well-control hydraulics [J]. SPE Drilling and Completion, 1999,14(1): 71–81.CrossRefGoogle Scholar
  11. [11]
    Gao Y. H. Study on multiphase flow in wellbore and well control in deep water drilling [D]. Doctoral Thesis, Qingdao, China: China University of Petroleum (East China), 2007(in Chinese).Google Scholar
  12. [12]
    Wang X., Wang Z., Deng X. et al. Coupled thermal model of wellbore and permafrost in arctic regions [J]. Applied Thermal Engineering, 2017, 123: 1291–1299.CrossRefGoogle Scholar
  13. [13]
    Sun B., Wang X., Wang Z. et al. Transient temperature calculation method for deepwater cementing based on hydration kinetics model [J]. Applied Thermal Engineering, 2018,129: 1426–1434.CrossRefGoogle Scholar
  14. [14]
    Wei S., Cheng L., Huang W. et al. Flow behavior and heat transmission for steam injection wells considering the tubing buckling effect [J]. Engergy Technology, 2015, 3(9): 935–945.CrossRefGoogle Scholar
  15. [15]
    Wang Z. Y., Sun B. J. Deepwater gas kick simulation with consideration of the gas hydrate phase transitionai][J]. Journal of Hydrodynamics, 2014, 26(1): 94–103.CrossRefGoogle Scholar
  16. [16]
    Sun B., Guo Y., Sun W. et al. Multiphase flow behavior for acid-gas mixture and drilling fluid flow in vertical wellbore [J]. Journal of Petroleum Science and Engineering, 2018, 165: 388–396.CrossRefGoogle Scholar
  17. [17]
    Bourgoyne A. T. J., Millheim K. K., Chenevert M. E. et al. Applied drilling engineering [M]. Richardson, Texas, USA: Society of Petroleum Engineering, 1986.Google Scholar
  18. [18]
    Hoberock L. L., Thomas D. C., Nickens H. V. Here’s how compressibility and temperature affect bottom-hole mud pressure [J]. Oil and Gas Journal, 1982, 80(12): 159–164.Google Scholar
  19. [19]
    Zhao S., Yan J., Shu Y. et al. Rheological properties of oil-based drilling fluids at high temperature and high pressure [J]. Journal of Central South University of Technology, 2008, 15(s1): 457–461.CrossRefGoogle Scholar
  20. [20]
    Chen Z., Xie L. Special considerations for deepwater well temperature prediction [C]. SPE/IATMI Asia Pacific Oil and Gas Conference and Exhibition, Nusa Dua, Bali, Indonesia, 2015.Google Scholar

Copyright information

© China Ship Scientific Research Center 2018

Authors and Affiliations

  • Xue-rui Wang (王雪瑞)
    • 1
  • Bao-jiang Sun (孙宝江)
    • 1
  • Ping-ya Luo (罗平亚)
    • 2
  • Zhi-yuan Wang (王志远)
    • 1
  • Ning Wang (王宁)
    • 1
  • Ke Ke (柯珂)
    • 3
  • Hui Zhang (张辉)
    • 3
  1. 1.School of Petroleum EngineeringChina University of Petroleum (East China)QingdaoChina
  2. 2.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation EngineeringSouthwest Petroleum UniversityChengduChina
  3. 3.SINOPEC Research Institute of Petroleum EngineeringBeijingChina

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