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Study on empirical equation of initial gas-oil ratio and volume factor

Zhang Aihua(Liaohe Oilfield Company,CNPC,Panjin 124010,China).  
In order to provide technical supports for exploration and development and reserve estimation of the oilfield,a reasonable and effective method is explored for determination of the physical parameters of the crude oil in situ under the condition that in the new exploration area only conventional PVT data of the surface oil is available in lack of various data to characterize the reservoir initial condition.In the paper,in view of the research results of Standing,Glaso,Beggs,Muhammad et al,based on the statistics,reservoir engineering theory,the empirical equation of initial GOR of the crude oil vs.volume factor are established for different formations in Shuguang area,Huanxiling area in Liaohe Oilfield,combined with the actual data of Liaohe Oilfield.The empirical equations are validated by the actual data,which shows applicable and feasible.
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