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开展综合物探工作对于勘探程度较高的油田是当务之急。理由之一:勘探程度较高的老区,其勘探的重点已不是搞清构造形态的问题,而是精查细找隐蔽的油气藏,如小潜山、小滚动、小断块及其它岩性油气藏。要完成这样的勘探任务,加密测线不是一个好办法。例如济阳坳陷总面积为二万五千平方公里,至1981年7月底为止共完成地震剖面十万余公里,平均每平方公里约有4公里的地震测线;详查的测线密度已达0.6×0.6(公里)的方格网,个别地区甚至还有所谓的“蓖梳”战术的测网。
Carrying out geophysical prospecting is a top priority for oilfields with a high degree of exploration. One of the reasons is that the exploration area is no longer the focus of exploration in the old areas with a higher degree of exploration. Instead, it looks for subtle reservoirs such as small buried hills, small rolling hills, small fault blocks and other lithologies Oil and gas reservoir. To complete such an exploration mission, it is not a good idea to encrypt the survey line. For example, the total area of the Jiyang Depression is 25,000 km 2. By the end of July 1981, a total of 100,000 km of seismic sections have been completed and an average of 4 km of seismic lines per square kilometer has been completed. Detailed survey line density Up to 0.6 × 0.6 (km) square grid, even in some areas and the so-called “grate comb” tactical network.