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当地震船上挂有水下检波器(地震检波器)的电缆由于水流而偏离测线时,反射时间和炮检距的关系方程式与电缆无偏离情况下的方程式不同。对于无偏斜的情况,即使反射层平面是一个倾斜面,但时距曲线方程仍是双曲线方程并且起点在震源和接收器重合的间隔上。当电缆有偏斜,而反射层又是倾斜面时,虽然方程仍为双曲线方程,但一般来说,其起点位置已不在震源和接收器的重合间隔上。由于起点取决于电缆的偏斜角度及与电缆偏离方向有关的测线方向,所以
When the cable on which the underwater geophone (geophone) is attached to the local seismic vessel deviates from the survey line due to the flow of water, the relation between the reflection time and the offset is not the same as that for the case where the cable does not deviate. For non-skewed cases, even if the plane of the reflector is an inclined plane, the time-history curve equation is still hyperbolic and begins at the interval where the source and receiver coincide. When the cable is skewed and the reflector is an inclined plane, the equation is generally not a hyperbolic equation, but its starting point is generally not at the coincidence interval between the source and the receiver. Since the starting point depends on the skew angle of the cable and the direction of the measuring line in relation to the direction of the deviated cable