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Mechanical Behavior of the Production String in High-Temperature and High-Pressure Wells

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Chemistry and Technology of Fuels and Oils Aims and scope

High-temperature and high-pressure wells are facing a lot of problems such as complicated stress on the production string, severe deformation, and annular pressure, which seriously restrict the pace of drilling and development of HPHT oil and gas resources in China. In this paper, theoretical analysis and software calculation are combined to study the stress and deformation of an HTHP well string. Based on the research results, the authors have established an algorithm and method of mechanical analysis for high-temperature and high-pressure wells. The method could be effectively applied to drill string analysis in high-temperature and high-pressure well conditions. Lastly, the developed method of analysis and calculation algorythm has been verified for the actual production conditions. Based on the proposed calculation method, we have evaluated the force, deformation, and trap pressure values of the drilling string and packer under different working conditions. The results can be used to assess the safety of field operations. In this paper we provide the algorithm and method for production string analysis in HTHP wells.

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References

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Author information

Authors and Affiliations

  1. Sinopec Northwest Oilfield Company, Urumqi, 830011, China

    Sun Tongcheng & Yang Xiaohui

  2. Sinopec Research Institute of Petroleum Engineering, Beijing, 100101, China

    Sun Lianzhong

  3. Beijing University of Chemical Technology, College of Mechanical and Electrical Engineering, Beijing, 100029, China

    Sun Tengfei

  4. Sinopec Southwest Oilfield Service Corporation, Chengdu, 618007, China

    Liu Zuocai

Authors
  1. Sun Tongcheng
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  2. Sun Lianzhong
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  3. Yang Xiaohui
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  4. Sun Tengfei
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  5. Liu Zuocai
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Corresponding author

Correspondence to Sun Tengfei.

Additional information

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 74 – 78, September – October, 2020.

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Tongcheng, S., Lianzhong, S., Xiaohui, Y. et al. Mechanical Behavior of the Production String in High-Temperature and High-Pressure Wells. Chem Technol Fuels Oils 56, 821–829 (2020). https://doi.org/10.1007/s10553-020-01194-8

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  • DOI: https://doi.org/10.1007/s10553-020-01194-8

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