【摘要】 基于网格层析成像技术的叠前深度域速度建模方法,适用于低信噪比地区及不易进行构造、层位拾取的沿层、构造速度建模地区,其适用性广,且避免了传统沿层位拾取方法的人为干扰因素,提高了深度域速度建模的精度。桂中坳陷地震资料属于典型的复杂近地表条件下的低信噪比资料,通过网格层析成像技术在该地区的实际应用,取得了较好的效果。更多还原

【Abstract】 The speed modeling method of prestack depth domain based on grid tomographic imaging technology was suitable for application in the low SNR region and for the areas of not uneasy pick up of structure and horizon along the strata,it had wide applicability and avoided the traditional human disturbance of the pick up method along with the strata,improved the accuracy of the speed depth domain modeling.The data from Guizhong Depression belong to the low SNR data of typical complex near surface seismic condition,through the application of grid tomography technology in the area,better application effect is obtained in the depression.更多还原