Resolution Of Seismic Acquisition Data Affected By Near Surface Sediment In Southern Linjiang

In this paper, the sediment characteristics of variant areas are analyzed based on the charts of the geology, topographty, region and surface survey. The orderliness of the surface sediment in southern Linjiang is researched using the geology and topographer to analyze the characteristics of the surface structure and variant affects of seismic resolution, and four factors affecting near surface sediments are defined. The river physiognomy including the mode of river geology, sediment time, sediment and depositing continuity formed by the geologic affect of Songhua river, comes into being the various surface structure at present. The project is divided into four zones based on the characteristic of the sediments, including the river gulfs, river plains, high flat-roof and sloping lands, which increases the interfering of seismic data and deceases the energy of the effective signals in surface interfering, absorbing attenuation, exploding lithology, pseudo reflection and received coupling.Four factors of near surface sediments is interdependently and interact, whose time of surface sediments decides on the solidness of surface so as to affect the resolution of seismic data. The effects of the factors else is very little.Some analysis methods, such as the seismic acquisition data and the construction that is little dynamite and shot-well combination to improve the resolution of seismic acquisition are put forward.