High-Pressure Direct-Fired Steam-Gas Generator (HDSG) for Heavy Oil Recovery

Abstract:

High-pressure direct-fired steam-gas generator (HDSG) is to produce multiplex thermal fluid (contains water, CO₂, N₂ etc.) through efficient direct-contact heat transfer, which would utilize the flue gas heat and reduce the gas emission caused by ordinary boiler. Furthermore, the multiplex thermal fluid can promote the heavy oil recovery by both steam flooding and miscible flooding. This paper introduced three kinds of HDSG: pressurized submerged combustion vaporization (PSCV), multiplex thermal fluid generator and supercritical hydrothermal combustor, which are different in work pressure and method of mixing water and flue gas. Then, we discussed the economic efficiency of HDSG used for heavy oil recovery and concluded that although the pressurization of fuel and oxygen would cost as much as the energy saved by utilizing the flue gas heat, using HDSG for heavy oil recovery has other incalculable benefits such as miscible flooding, waste water treatment and reduction of heat loss through injection well. Finally, we indicated that supercritical hydrothermal combustor will be the trendy of HDSG and pointed out the future research should be carried out on the heat and mass transfer characteristic of the combustion field when water presents and the combustion stability and completeness when pressure increases.

• Periodical: Applied Mechanics and Materials (Volume 577)
• Pages: 523-526
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.577.523
• Online since: July 2014
• Authors: Meng Meng Ren*, Shu Zhong Wang, Li Li Qian, Yan Hui Li
• Keywords: Enhanced Oil Recovery (EOR), High-Pressure Combustion, High-Pressure Direct-Fired Steam-Gas Generator (HDSG), Multiplex Thermal Fluid, Supercritical Hydrothermal Combustion

References

[1] Shah, A et al.: A review of novel techniques for heavy oil and bitumen extraction and upgrading. Energy & Environmental Science, 2010. 3(6), pp.700-714.

[2] Gong, X.L.: Development of pressurized submerged combustion vaporization system and their basic characteristic investigation. Beijing University of Technology , (2012).

[3] Ma, Z.H., Lin, Y.T. et al.: Application of offshore multiplex thermal fluid generator. Oil-Gasfield Surface Engineering, 2013, 06, pp.126-127.

[4] Yu, Y.B.: The corrosin mechanism of multiplex thermal fluid in injecting well. Chemical Enterprise Management, 2013, 10, p.132.

[5] Ma, Z.H., Lin, Y.T. et al.: Study on corrsion of multiplex thermal fluid to differen steel. Petrochemical Industry Application, 2012, 09, pp.60-63.

[6] Feng, X., Li, J.S. et al.: Influence factor analysis of multiplex thermal fluid parameter on heavy oil recovery. Science Technology and Engineering, 2013, 02, pp.468-471.

[7] Zhang, F.M., Study on the heat load characteristic of the transpiring wall reactor for supercritical water oxidation. Shandong University, (2012).

[8] Von Rohr, P.R., K. Prikopsky, and T. Rothenfluh: Flames in supercritical water and their applications. Strojnicky Casopis, 2008. 59(2), pp.91-103103.

[9] Augustine, C. and J.W. Tester: Hydrothermal flames: From phenomenological experimental demonstrations to quantitative understanding. The Journal of Supercritical Fluids, 2009. 47(3), pp.415-430.

DOI: 10.1016/j.supflu.2008.10.003

[10] Jiang, H., Liu, Z.L. et al.: Thermal economic analysis of pressurized submerged combustion vaporation. CIESC Journal, 2011, 12, pp.3498-3502.

[11] Lin, T., Sun, Y.T. et al. Study on the hybrid synergy of CO2, N2 and steam. Fault-Block Oil & Gas Field, 2013, 02, pp.246-247+267.

[12] Li, W.C., Qi, T. et al.: Study on the temperature field model of injecting well for offshore heavy oil recovery. Journal of southwest petroleum university, 2012, 03, pp.105-110.