基于Tesseral正演模拟的三维地震资料挠曲和采空区解释OA

The flexure and goaf in coal mines pose serious threats to safe production,and 3D seismic exploration is an effective method for detecting them.Taking the GZH coal mine in Shanxi as the research object,this paper adopts 3D seismic exploration combined with Tesseral software forward modeling as the core method,and cooperating with Geoframe workstation for multi-grid accuracy interpretation and multi-attribute comprehensive analysis.Geological models are established for flexure structures and goafs with three filling states(air,water,half-air and half-water),and forward modeling using wave equations and ray tracing is carried out to clarify seismic response characteristics.Data processing improves data quality through static correction,noise suppression,deconvolution and other processes.Interpretation identifies two flexures and two goafs:flexures are characterized by faulted,repeated or distorted reflection events,while goafs show missing or time-delayed reflections.Study shows that forward modeling can accurately summarize seismic response laws,significantly improve interpretation accuracy combining multi-attributes with time sections,and provide a reliable technical basis for coal mine safety exploration.