【摘要】 叠前反演技术在储层预测、含气性检测和甜点预测中发挥着重要作用,其预测效果除了受反演方法本身影响外,最重要的是受道集数据质量的制约。常规地震资料处理以构造成像为主要目的,难以满足叠前反演、定量解释分析的要求。本文依据叠前反演对道集质量的要求出发,针对JSB工区CRP道集存在的问题,开展了叠前去噪、道集拉平等方面的道集优化处理。通过JSB工区叠前AVO同时反演的应用证明,道集优化处理提高了道集质量,改善叠前反演效果。更多还原

【Abstract】 Prestack Inversion play an vital role in reservoirdepiction,gas detection and sweet spot prediction.The effect of inversion rely on the quality ofprestack gather seriously. The general seismic processing aim at the tectonicinterpretation mainly,The processed result can’t meetprestack inversion and quantitative seismic interpretation. Based on the prerequisite of gather quality for prestackinversion,noise attenuation and gather flattening were carried on to improve CRP gather of JSB area. Through the apply of prestackinstantaneous inversion in JSB area,it is proved that gather conditioning improve the inversion effect and gather quality.更多还原