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针对胜利油区油藏评价阶段探明储量计算出现偏差的区块(单元),对比储量复算前后各项储量参数的变化,分析各项储量参数变化对储量变化影响的大小,确定造成储量偏差的首要参数,进一步分析造成该参数发生偏差的主要影响因素,确定了造成油藏评价阶段探明储量计算偏差的4项主要因素,即油藏认识、地震资料、井控程度和试油(采)资料。选取4个典型油藏,对造成油藏评价阶段探明储量计算偏差的主要因素分别进行了进一步的解剖分析,对今后探明储量计算中避免类似问题的发生具有很好的借鉴意义。
According to the change of reserves parameters before and after the recalculation of reservoirs in Shengli oil-field reservoir evaluation stage, the discrepancies of proven reserves are analyzed, and the influence of the change of reserves parameters on the changes of reserves is analyzed to determine the deviation of reserves The main factors that led to the deviation of this parameter were further analyzed, and the four main factors that caused the deviation of proven reserves in reservoir evaluation stage were identified, namely, reservoir understanding, seismic data, well control degree and oil testing )data. Four typical reservoirs are selected to conduct further anatomical analysis on the main factors that cause the discrepancy of proven reserves in the evaluation stage of reservoirs, which is of great reference significance for avoiding the occurrence of similar problems in the calculation of proven reserves in the future.