SEC准则是在美国上市的石油公司必须遵循的储量标准.为了适应SEC新准则的变化,建立适合大庆油田地质特点的证实储量评估方法,在分析新准则对证实储量定义的修改、系统总结大庆油田证实未开发储量分布特点的基础上,对比了中、西方储量评估的差异,提出了岩性油藏证实储量面积的圈定思路.通过经验统计方法,论证了不同砂体类型岩性油藏的合理确定性井控程度:三角洲前缘席状砂油藏为小于3 km2/口,油水关系复杂的零散砂体油藏为小于2 km2/口.该研究为大庆油田SEC储量评估中含油面积的圈定提供了参考依据.%SEC regulations are the reserves criteria that the quoted oil companies publicly in the U. S. have to follow. In order to adapt the changes of this new rules, the evaluating method of the proved reserves is created for the geological characteristics of Daqing Oilfield. On the bases of the revision of the above reserves by the new standards and the systematical summary of the distribution characteristics of the undeveloped proved reserves in Daqing Oilfield, the differences of reserves estimation between China and the West are contrasted, the determining thought for the proven reserves area of lithological oil reservoirs is presented. By virtue of the method of empirical statistics, the reasonable and certainty well control degree for various types of sandbodies in lithologic oil reservoirs are demonstrated : less than 3 kmVwell for the oil reservoirs of delta front sheet sand and less than 2 kmVwell for the oil reservoirs with complex oil-water relation and scattered sand bodies. The researches stated above have provided a certain references for the determination of oil-bearing area in the estimation of SEC reserves in Daqing Oilfield.
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