A Research on Shooting Parameters in Zhoukou Basin

Selection of shooting parameters is crucial to increase the quality of seismic acquisition.The surficial lithology in Zhoukou basin is complex including clay layers,sand layers and interbedded sand and mudstone with calcareous concretions.The principle for selection of shooting well depth is to shoot in mudstones with relatively high velocity3to5m below water table.A technology is developed through experiments,i.e.designing shooting well depth step by step and controlling shooting lothology point by point.The specific well depth is determined according to the depth of water table and the shooting lithology below the water table.Application of this technology in the Tanzhuang -Shenqiu depression in Zhoukou basin is very successful.