公开(公告)号：US5621700A

公开(公告)日：1997-04-15

申请号：US650325

申请日：1996-05-20

申请人： Nicolae Moldoveanu

发明人： Nicolae Moldoveanu

IPC分类号： G01V1/36 ,  G01V1/38 ,  G01V1/28

CPC分类号： G01V1/364 ,  G01V1/3808 ,  G01V2210/56

摘要： A method is described that attenuates reverberations in ocean bottom cable data used to generate a seismic profile. First, a seismic wave is generated and recorded by pressure and particle velocity sensor pairs. Adding the product of the pressure data times the absolute value of the velocity data and the product of the velocity data times the absolute value of the pressure data eliminates reverberations, leaving a combined signal that is a function of only the primary wave response signal. Dividing this combined signal by the number 2 and a sensitivity scaling factor, and then taking the square root of the result produces the magnitude of the primary signal. Replacing the positive/negative sign of the combined signal that existed before taking the absolute value provides the proper polarity. The data are then incorporated into a seismic profile.

摘要翻译： 描述了一种衰减用于产生地震剖面的海底电缆数据中的混响的方法。 首先，通过压力和粒子速度传感器对产生和记录地震波。 加上压力数据的乘积乘以速度数据的绝对值和速度数据的乘积乘以压力数据的绝对值可以消除混响，留下仅与主波响应信号有关的组合信号。 将该组合信号除以数字2和灵敏度比例因子，然后取结果的平方根产生主信号的幅度。 取绝对值之前存在的组合信号的正/负符号提供正确的极性。 然后将数据并入地震剖面。