Abstract: The application of reservoir lateral forecast technique has become a main approach in the exploration and development of oil&gas field. It can provide reliable results on detailed description of reservoir depth,thickness, and physical properties by utilizing seismic&log data, and tracking the horizontal distribution of reservoir. Based on the result of structure interpretation and adopting multiwell confined inversion technique, it has integrated higher lateral resolution of seismic data with higher vertical resolution. The paper predicts reservoir lateral change in Qinjiatun oilfield,which has laid the foundation for seeking favorable zones. The results show that the forecast precision by this method is satisfactory, and the relative error of sand thickness&porosity is no more than 20%. Therefore, the method should be applied and extended as an effective approach for research.

Key words: reservoir lateral forecast, wavelet, inversion, sand thickness, porosity, Qinjiatun oilfield

摘要： 储层横向预测技术已成为油气田勘探开发的重要手段,它利用地震和测井资料追踪储层的横向展布,为精细描述储层深度、厚度、物性等参数提供了可靠的依据.在构造解释成果的基础上,应用多井约束反演方法,将地震资料较高的横向分辨率与测井资料较高的纵向分辨率有机的结合,预测秦家屯油田储层的横向变化,为寻找有利目标奠定了基础.研究结果表明用该方法预测得到的砂岩厚度和孔隙度,其相对误差不超过20%,预测精度较高,可作为一种有效的研究手段推广和应用.

关键词: 储层横向预测, 子波, 反演, 砂岩厚度, 孔隙度, 秦家屯油田