论文部分内容阅读
在海上多波地震勘探中,野外施工设计采用海水中激发,海底接收的观测方式.由于炮点和检波点不在一个基准面上,就带来了基准面校正问题.在选定海底为基准面后,通常将炮点校正到海底,若海水层的深度超过100m,简单时移校正的误差比较大,应该采用更精确的波场延拓基准面校正方式.对理论合成记录和莺歌海地区的实际资料进行了方法测试,效果令人满意.
In the offshore multi-wave seismic exploration, the field construction design adopts the observation mode of seawater excitation and seafloor receiving, and because the shot point and the detection point are not on a reference plane, the problem of the calibration of the reference plane is brought about. In the selected seafloor as the reference plane Normally, the shot point is usually corrected to the sea floor, and if the depth of the seawater layer exceeds 100 m, the error of the simple time-shift correction is relatively large, and a more accurate wave field continuation reference plane correction method should be adopted.On the theoretical synthesis record and the Yinggehai area The actual data of the method test, the effect is satisfactory.