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针对斜井的合成地震记录 ,本文提出了一种简便、实用的制作方法 :1根据井斜角、方位角和测量深度 ( MD)计算测量点偏离井口的 Δ x、Δy和真垂直深度 ( TVD) ;2在 TVD域内利用常规方法制作合成记录 ;3将合成记录和测井曲线沿井孔显示 ,同时考虑井孔方位与地震测线间的关系 ;4对合成记录进行微调 ,以使合成记录能更好地匹配地震剖面。采用上述方法制作的斜井和水平井的合成记录和地震剖面对比较好 ,达到了斜井层位标定的目的
Aiming at the synthetic seismogram of deviated well, this paper presents a simple and practical method of production: 1 Calculate Δx, Δy and true vertical depth (TVD) of measurement point from wellhead according to well inclination, azimuth and measurement depth (MD) ) 2 Synthetic records are made in the TVD domain using conventional methods 3 Synthetic records and well logs are shown along the wellbore while taking into account the relationship between the borehole orientation and the seismic line 4 Fine tuning of the synthetic record so that the composite record Can better match the seismic section. The synthetic records and the seismic profiles of the deviated and horizontal wells produced by the above method are relatively well matched and the purpose of calibration of the inclined layers is achieved