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定向井技术的广泛应用，给容积法储量计算时单井有效厚度的确定带来一定的困难。常规的有效厚度校正方法考虑因素单一，从而造成储量计算结果误差较大。推导出定向井有效厚度校正公式，分析了采用常规校正方法所得有效厚度对储量计算精度的影响，并在大港油田南区孔垒地区２口大位移定向井（井斜角３１°～４４°）的厚油层有效厚度校正中得到初步应用，证实了所介绍方法的正确性和实用性。图３参３（郭海莉摘）
The widespread application of directional well technology brings certain difficulties to the determination of the effective thickness of single well when calculating volumetric reserves. Conventional effective thickness correction method to consider a single factor, resulting in large reserves calculation error. The effective thickness correction formula of directional well is deduced. The influence of the effective thickness obtained by the conventional calibration method on the calculation accuracy of the reservoir is analyzed. Two large displacement directional wells (well deviation angle 31 ° ~ 44 °) in Konglei area, south of Dagang Oilfield, The effective thickness correction of thick oil layer has been initially applied, which confirms the correctness and practicability of the proposed method. Figure 3 Reference 3 (Guo Haili pick)