地震勘探的费用还不及油藏开发过程中所涉及的工程总费用的百分之几,尽管实际情况十分复杂(对地震勘探而言),但是由地震资料产生的影响正对油藏成像造成十分显著的危害。从Foinaven油田和其它的时延地震勘探中,我们已掌握了大量的信息,而且提高重复性是改善有关信息的关键。时延(或4D)地震勘探的位置由原来的不断重复初始采集正逐渐成为一 Seismic exploration costs less than a few percent of the total cost of the project involved in reservoir development, and despite the fact that the situation is so complex (for seismic exploration), the impact of seismic data is making a significant contribution to reservoir imaging Significant harm. We have learned a great deal about information from the Foinaven field and other time-delay seismic surveys, and increasing repeatability is the key to improving the information. The location of the time-delay (or 4D) seismic prospecting is gradually becoming one from the original repeated initial acquisition