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Eclipse Numerical Simulation Techniques for Polymer Surfactant Flooding: Theory and Practice |
ZHENG Hao, SU Yanchun, ZHANG Yingchun, ZHOU Fengjun, WANG Yuejie |
Bohai Oilfield Exploration and Development Institute, Tianjin Branch of CNOOC Ltd., Tianjin 300452, China |
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Abstract: The reservoir numerical simulation, as a mature technology, is widely used in the adjustment and the optimization of the production measures in the oil exploration, and the oil recovery improvement. Although the numerical simulation softwares of chemical flooding are numerous, but their basic principles and the realization methods are similar. This paper takes the Eclipse numerical simulator as an example, discusses the basic principle and the numerical simulation implementation of the polymer-surfactant flooding, presents the laboratory parameters required and the determination methods. A new method of constructing the capillary desaturation curve is proposed by combining the numerical simulation calculation with the oil displacement experiments, and with a special oilfield as an example, the parameter selection and the sensitivity analysis are shown: the polymer concentration is 1500mg/L, and the surfactant concentration is 0.1%.
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Received: 28 January 2013
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