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

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