We have constructed/reconstructed many kinds of the surfaces with these properties, by using Tan s theory about triple cover and the method on the resolution of the singularities from the triple covering data directly.

Prestack amplitude normalization processing based on fold and its application to Daqing Oilfield;

Briefly analyzing relationship between folds and S/N ratio.;

In such a design, the main problems to be solved are:1) the definition of the center position for shots spread,2) the effect of shots missing on coverage area and fold,and 3) the arrangement of shots and receivers f.

Through the practical example of subsurface structure prospecting for shaft project in deep exploitation of Wangershan gold mine, Laizhou city, Shandong province, the paper analyzes the effect of finding the complex subsurface structure by using the equal offset multiple coverage technique of shallow seismic reflection method.

An analysis of the multi-fold method for GPR exploration;