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A Calculation Method of Stage Division in Steam Drive Considering Heat Transfer

Bin Hu 1, Tingting Pan 2, Jingwei Bao 3, and Lingbin Lai 3
1. College of Petroleum Engineering, China University of Petroleum, Beijing, China; 2.The Planning Department, China National Petroleum Corporation (CNPC), Beijing, China
2. Research Centre of Reservoir Geophysics, BGP Inc. of CNPC, Hebei, China
3. Petro China Research Institute of Petroleum Exploration & Development, Beijing, China

Abstract—Appropriate control measures for different steam flooding stages is very important to improve the recovery. Generally, stage division of the steam flooding is based on dynamic analysis of production curve. By analyzing the heat transfer and mass transfer in porous media, considering steam overlap and one-dimensional change for area patterns to avoid the difference of well spacing in stage division, the theoretical model of well group stage division of steam drive is established. When the viscosity of crude oil in production well bottom is dropped 50 mpa.s, hot inter-well communication stages completed. when steam front migrate to the production well bottom, the steam breakthrough stage begins. The steam stimulation stage is between the hot inter-well communication and the steam breakthrough. Example shows that the production bottom temperature started to maintain original formation temperature, then had a sharp rise after a period of time, and changed slowly at last. This calculation result is consistent with the actual results, the method can be used to divide the stages of steam flooding.

Index Terms—stage division, one-dimensional change, steam overlap, bottom temperature

Cite: Bin Hu, Tingting Pan, Jingwei Bao, and Lingbin Lai, "A Calculation Method of Stage Division in Steam Drive Considering Heat Transfer," Journal of Industrial and Intelligent Information, Vol. 4, No. 1, pp. 56-60, January 2016. doi: 10.12720/jiii.4.1.56-60

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