物探与化探2025，Vol.49Issue(4)：846-854,9.DOI:10.11720/wtyht.2025.0040
地震波形指示反演方法在叠置薄砂岩预测中的应用
Application of the seismic meme inversion method in predicting superimposed thin sandstones:A case study of the Gaotaizi oil layer in the Qian'an oilfield,southern Songliao Basin
摘要
Abstract
To address the challenges in predicting superimposed thin sandstones in lacustrine basins,this study proposed a technical workflow for their prediction using the seismic meme inversion(SMI)method.First,an initial inversion model was constructed using log curves from sample wells selected based on seismic waveform similarity.Second,the initial inversion model was iteratively optimized in a Bayesian framework to yield high-resolution SMI results.Third,the SMI results were integrated with low-frequency inversion results to yield high vertical resolution while effectively characterizing the lateral superimposed patterns and boundaries of sand bodies.Case stud-ies demonstrate that the SMI method achieved a prediction accuracy of 2 m to 3 m for superimposed thin sandstones.The coincidence rates for calibration and validation wells reached 91.5%and 85.2%,respectively,confirming the effectiveness of the SMI method and the high precision of the inversion results.Overall,this study provides an effective technical approach to predicting superimposed thin sandstones in lacustrine basins.关键词
地震波形指示反演/叠置薄砂岩/储层预测/乾安地区/青山口组Key words
seismic meme inversion/superimposed thin sandstone/reservoir prediction/Qian'an area/Qingshankou Formation分类
天文与地球科学引用本文复制引用
杨光,王立贤,胡佳,刘智军,张红杰,王云鹤,孙龙,张旭升,陈彦虎..地震波形指示反演方法在叠置薄砂岩预测中的应用[J].物探与化探,2025,49(4):846-854,9.基金项目
国家自然科学基金项目(41972139,41922015) （41972139,41922015）
