Application of 3D seismic survey in loess tableland

It is a real challenge to carry out seismic survey in loess tableland.Due to its particular geologic features,we always adopt the method of 2D seismic survey with crooked lines in valleys and straight lines in this area,which is limited for the exploration.The technology of reticulate 3D seismic survey in loess tableland is put forward here.The characteristics of the primary sources and the related processing techniques are discussed.The application effects on processing and geology are analyzed.The results show that the techniques of reticulate 3D seismic survey are significant for the oil-gas exploration in the loess tableland.