SEC标准确定容积法储量计算参数

摘要

The oil companies listed on the New York stock exchange must obey the SEC ( Securities and Ex-change Commission) oil and gas rules in estimating oil and gas reserves. Right understanding the definitions of SEC proved reserves is the basis for determining estimation method and parameters. In the initial stage of field development, the volumetric method is the best estimation method which is also one of the determined methods accepted by SEC. The paper starts from the understanding of SEC rules and analyzes the determination on each parameter in the volumetrics, in which, two parameters, i. e. area and net pay, are primary points to be de-scribed. According to SEC definition of proved reserves, proved areas are limited by the lowest known hydrocar-bons as seen in a well penetration or undrilled acreage which is continuous from production when using reliable technology proof. The determination of net pay is accordant to cut off standards; other parameters obey the SEC rules of conservatives and reveal the core property in SEC reserve estimation:“reasonable certainty”.%在美国上市的石油公司必须遵循SEC标准进行储量评估及披露，因此正确理解SEC证实储量的定义是确定评估方法及评估参数的依据。容积法是油田开发初期最佳的储量评估方法，也是符合SEC标准的储量评估方法之一。通过对SEC储量标准的理解，分析确定了符合SEC标准的各个容积法储量计算参数，其中重点描述与SEC证实储量范围定义密切相关的含油面积和有效厚度2个参数。 SEC证实储量范围要求必须是钻井钻遇而圈定的面积或有充分证据证明与证实范围连通的未钻区域；有效厚度的确定符合下限标准；其他参数的确定均遵循SEC储量评估的保守原则，并体现了SEC储量评估中最重要的特点：“合理的确定性”。