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Improved kinetic Equations for a NaNO2/NH4Cl Heat Generating System and their Implications in Oil Production

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Chemistry and Technology of Fuels and Oils Aims and scope

A NaNO2/NH4Cl heat generating system has been widely applied in oil production process in China, for paraffin plug removal, in-situ fracturing, etc. Establishing an accurate kinetic equation for the NaNO2/NH4Cl system is important for field operation applications. In this study, based on a strictly controlled group of experiments, the kinetic equation for the NaNO2/NH4Cl heat generating system is established and regressed by the method of undetermined coefficients, on condition that the heat loss of the reaction is relatively small and could be neglected. It is obvious that in many field applications the heat loss is considerably high and cannot be neglected; hence the equation is improved by taking into consideration the heat loss input. The improved equation shows a better correlation with experimental data, particularly for long reaction times. The established equation reveals the relationship between the reaction rate and the concentrations of the reactants and catalyst This study has practical significance for calculating the temperature field near the well bore and can be used for parameter optimization of the NaNO2/NH4Cl heat generating system.

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References

  1. T. Mitchell et al., “Field Application of a Chemical Heat and Nitrogen Generating System,” paper SPE 12776 presented at the 1984 SPE California Regional Meeting, Long Beach, April 11-13, (1984).

  2. J.B. Collesi, T.A. Scott, and H.W. McSpadden, "Surface equipment cleanup using in-situ heat," SPE Product. Eng., 3(02), 258-262 (1988).

    Article  CAS  Google Scholar 

  3. Y. Huang, C. Pu, and F. Wu, "Calculation of temperature field in heavy oil reservoirs with steam injection and chemical thermogenesis,"Appl. Chem. Ind., 41(2), 365-368 (2012).

  4. S. Liu, A Sun, F. Liu, et al, "Optimization methods of concentration of heat-generation agents in in-situ heat fracturing treatment," Oil Drill. Prod. Technol., 25(1), 45-48 (2003).

    Google Scholar 

  5. Y. Lin, L Xiang, and Y. Huang, "Research and application of new types of foam fracturing fluid," Drill. Prod. Technol., 33(4), 99-101(2010).

  6. Q. Zuo and X. Fan, "A method of thermochemical block removal for extra and super heavy oil reservoirs," Spec. Oil Gas Reserv., 19(1), 113-115 (2012).

    CAS  Google Scholar 

  7. J. Zhang, D. Wang, Q. Ma, et al., "Applied research on oil recovery technique by thermochemistry," OGRT, 6(4), 62-66 (1999).

    CAS  Google Scholar 

  8. A.A. Al-Taq et al., "First successful filtercake damage removal treatment utilizing in-situ nitrogen/heat generating system for relatively heavy oil wells," paper SPE170832 presented at the SPE Annual Technical Conference and Exhibition, Amsterdam, Netherlands, 27-29 October (2014).

  9. J. Huang and X. Ju, "Study on three chemical heat generation systems and application in oilfield production," Technol. Supervis. Pet. Ind., 21(1), 58-60 (2005).

    Google Scholar 

  10. D.R. Davies, E.A. Richardson, and D. Antheunis, "Field application of in-situ nitrogen gas generation system," Middle East Technical Conference and Exhibition. Society of Petroleum Engineers (1981).

  11. J. H. Bayless, “Hydrogen peroxide, a new thermal stimulation technique,” World Oil, 219(5), 75-78 (1998).

    Google Scholar 

  12. J. H. Bayless, "Hydrogen peroxide applications for the oil industry," World Oil, 221(5), 50-54 (2000).

    Google Scholar 

  13. X. Chen, L. Zhao, and S. Liu, "Laboratory experiment and application of chemical heat-generation," J. Chongqing Univ. Sci. Technol. (Nat. Set. Ed.), 14(3),113-114 (2012).

  14. Y. Then, H. Ying, J. Han, et al., "Research on low corrosion of fracturing fluid in authigenic heat system in-door,"J. Shanxi Univ. Sci. Technol., (1), 62-65 (2013).

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Acknowledgments

We would like to thank the National Key Basic Research Program of China (No. 2015CB250904) for financial support, and the China Oilfield Services Limited (COSL) for supporting this work

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Authors and Affiliations

  1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing, 102249, China

    Wang Xiuyu, Cui Yuqiao, Liu Chang & Zhang Ya

  2. College of Petroleum Engineering, China University of Petroleum, Beijing, 102249, China

    Wang Xiuyu, Cui Yuqiao, Liu Chang & Zhang Ya

Authors
  1. Wang Xiuyu
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  2. Cui Yuqiao
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  3. Liu Chang
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  4. Zhang Ya
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Translated from Khimiya i Tekhnologiya Topliv i Meisel, No. 5, pp. 75 — 80, September — October, 2019.

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Xiuyu, W., Yuqiao, C., Chang, L. et al. Improved kinetic Equations for a NaNO2/NH4Cl Heat Generating System and their Implications in Oil Production. Chem Technol Fuels Oils 55, 623–634 (2019). https://doi.org/10.1007/s10553-019-01075-9

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  • DOI: https://doi.org/10.1007/s10553-019-01075-9

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