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《Petroleum Geology & Oilfield Development in Daqing》 2006-04
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Research on Pressure Drop Interpretation in the Stage of Stewing in Steam Soak of Heavy oil Recovery

LEI Zhan-xiang,et al.(Petroleum Engineering Institute of Chinese Petroleum University,Dongying 257061,China)  
Aimed at the characteristics of stewing stage in huff and puff of thermal recovery,a mathematic model including energy balance equation is built in which such factors as heterogeity of reservoir and fluids are taken into account.And then this model is solved by using improved streamline method.Besides,in this part,according to the condition that whether there exists steam chamber or not,the concept of "turning point" is proposed.It is considered that data before this point can be interpreted with traditional well testing method,however,for those after this point,should be interpreted by the conversion amounts from steam into hot water.Based on the research,the model is tested by using actual data offered by Liaohe Oilfield.It is indicated that the well-testing model built in the stage of stewing can show the dynamic change of reservoir.
【Fund】: 中国青年创新基金(编号为w051805)的部分研究成果
【CateGory Index】: TE357
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