容积法储量计算中定向井油层有效厚度的校正  

Net pay thickness correction for directional wells during reserve calculation with volumetric method.

作　　者：张卫江[1] 孙广伯[1] 孟文建[1] 张凤敏[1] 

机构地区：[1]大港油田集团有限责任公司地质勘探开发研究院

出　　处：《石油勘探与开发》1998年第5期51-52,共2页Petroleum Exploration and Development

摘　　要：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 broad application of directional drilling has brought some difficulty to the net pay thickness determination for single well during the reserve calculation with volumetric method. Because the conventional net pay thickness correction considers only one factor, so it results in a bigger error in reserve calculation. Based on the structural analysis result, this paper gives out a correcting equation of net pay thickness, analyses the effect of net pay thickness obtained from the conventional correcting method on the precision of reserve calculation. The equation is preliminarily applied in sedimentation analysis of Konglei area, and is proved to be practical and important.

关 键 词：定向井 储量计算 油层厚度 

分 类 号：TE15[石油与天然气工程—油气勘探]