应用产剖资料确定非均匀水淹层剩余油饱和度

发布时间：2018-04-12 23:09

本文选题：剩余油饱和度 + 非均匀水淹层　；参考：《大庆石油地质与开发》2017年03期

【摘要】：文东油田是处于油田开发中后期的高温、高压、高盐低渗透砂岩油藏,应用传统的套后剩余油饱和度监测技术以及利用常规电阻率测井资料确定水淹层剩余油饱和度效果不佳。在利用产出剖面资料确定水淹层剩余油饱和度方法研究的基础上,分析水淹层水淹程度的非均匀特征导致水淹层内剩余油饱和度的差异,通过面积等效法构建非均匀水淹层饱和度模型图,应用此改进方法确定出非均匀水淹层的剩余油饱和度。方法改进前后对比分析结果表明:方法改进后的计算结果更能反映水淹层的整体剩余油饱和度,与储层的实际情况更加符合,进而可准确掌握区域剩余油饱和度分布规律,为油藏的合理有效开发提供科学依据。
[Abstract]:Wendong Oilfield is a high temperature, high pressure, high salt and low permeability sandstone reservoir in the middle and late stage of oilfield development. The application of traditional residual oil saturation monitoring technology and conventional resistivity logging data to determine the remaining oil saturation of water-flooded zone is not good.Based on the study of the method of determining the remaining oil saturation of the water-flooded layer by using the production profile data, the difference of the residual oil saturation in the water-flooded zone is analyzed. The non-uniform characteristics of the water-flooded zone result in the difference of the residual oil saturation in the water-flooded zone.Based on the area equivalent method, the saturation model of inhomogeneous water-flooded layer is constructed, and the residual oil saturation of inhomogeneous water-flooded layer is determined by using this improved method.The results of comparison and analysis before and after the improvement show that the calculated results of the improved method can better reflect the overall residual oil saturation of the water-flooded layer, which is more consistent with the actual situation of the reservoir, and then the distribution law of the regional residual oil saturation can be accurately grasped.It provides scientific basis for reasonable and effective development of reservoir.
【作者单位】：中石化中原油田分公司勘探开发研究院;长江大学地球科学学院;
【基金】：中国石化基础前瞻性研究项目“储层内部构型建模与剩余油分布特征研究”(P15037)
【分类号】：P631.81;TE327

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