Study Of High-resolution Seismic Acquisition Methods In Desert Area

In accordance with the situation of high-resolution seismic exploration techniques in different oil fields and the experiences summary, the seismologist admitted that the main ways of improving the resolution are to broaden effective frequencies and enrich high-frequency components as base rules. Based on this rules we conducted a technical experiment on the digital high- precision field acquisition techniques under the condition of existing newest seismic recording equipments in view of the special Seism-geological circumstances in Sulige desert area at the northern Ordos basin. Experiments and productive practices demonstrate that the quality of data acquired by this way is further improved after high resolution, high signal-to-noise ratio and high fidelity processing. And the whole reflection appearance and resolution are more adapted to exploration demands. This is a new breakthrough in high-resolution seismic acquisition methods in the desert area of the northern Ordos basin. It is concluded that the most effective method for field Seismic Data acquisition in this area is "high- precision with digital geophone single receiving acquisition method": First step is using "small receiver interval, high fold coverage and digital geophone single receiving method to optimize receiving parameters; Second step is adopting "Subtle method of surveying the weathering layer" to optimize shooting parameters through the method of Point by Point designing shot hole depth.