Research On 2D Seismic Acquisition Technology In FG Area

With the continuous development of technology and the scale of oil and gas exploration industry,large oil and gas fields has no conventional geological model simple seismic geological conditions,small and medium-sized oil complex seismic geological conditions in the region under the gas field is the trend of future exploration and selection of development on land.Seismic data acquisition is the basis for subsequent processing and interpretation of seismic profiles,only to the high quality of deep layer of fine tracking interpretation work,provide the basis for the oil and gas exploration,therefore,also need to adapt to the technology of seismic acquisition in complex structure area in the direction of development.In the FG area,the height of the surface is large,the stratum lithology is complex,the surface layer is serious,the surface velocity and thickness are changeable,and the deep structure is complex.I will use the previous theoretical research and practical experience in recent years,researching the following aspects :1.In this paper,the research work of seismic data acquisition techniques and methods is introduced,and the existing problems in seismic data acquired by the conventional acquisition techniques are analyzed;2.Understanding of the target area surface and deep seismic geological conditions,the research target observation system design method of complex tectonic earthquake geological model based on the established surface,deep seismic geological model,using the model of the forward analysis of observation system of the target area according to the different depth of the target layer,observation system design,and the use of sub district,wide line receiving method,improve the imaging quality of the target area.3.Discusshow to select the excitation mode,the excitation parameters,the excitation environment and the receiving environment in the seismic exploration of the complex tectonic zone.The formation of a complex geological structure with the fine seismic data acquisition technology scheme through the comprehensive research on the above aspects,good exploration result,has opened up a new path for seismic acquisition technology in complex mountain tectonic belt in the future.