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本文介绍了深井井间纵、横渡资料的层析成像方法。该方法利用正演模型识别波场,用交互法拾取走时,采用界面网最小走时射线追踪法进行射线追踪,并用反演样条系数代替反演慢度,最后合成速度场。实际资料处理结果表明,反演结果与测井曲线的相关性较好,几套高速砂层反映得比较清楚。
This paper introduces the tomographic method of longitudinal and cross-well data of deep wells. In this method, the forward field model is used to identify the wave field. When the interaction is picked up by the interactive method, the ray tracing is performed by using the minimum traveltime ray tracing method in the interface net. The inversion spline coefficient is used instead of the inversion slowness, and finally the velocity field is synthesized. The actual data processing results show that the correlation between the inversion results and well logging curves is good, and some sets of high-speed sand layers are reflected clearly.