在海洋三维地震作业中,潮汐运动对地震作业影响很大,有时甚至因为潮汐对地震电缆的侧向影响需要中断作业。本文根据作业工区附近港口的潮汐数据计算推断出作业区潮汐的运行规律,遵循其规律避开潮汐的高潮期进行地震作业,以取得更好的地震采集资料和提高施工效率。 In marine 3D seismic operations, tidal movements have a significant impact on seismic operations, sometimes requiring interruptions because of the lateral effects of tides on seismic cables. In this paper, we deduced the operating rules of the tide in the work area based on the tide data of the port near the work area, followed the law to avoid the high tide of the tide and did the seismic work in order to get better seismic acquisition data and improve the construction efficiency.