Application and prospect of multi-type seis-mic instrument joint acquisition technique in complex area
In recent years,a series of technical researches for complex surface and subsurface seismic geological conditions have been carried out with the deepening of oil and gas exploration in various exploration areas in Chi-na,and the high-precision physical prospecting technology characterized by"broadband and wide azimuth"is one of the important means.In the actual exploration process,the traditional cabled seismic instruments can no lon-ger meet the demand for high-density,high-efficiency and high-quality seismic data acquisition due to the limita-tions of real-time acquisition capability and poor adaptability to complex ground surface.The new fashioned ca-bleless seismic instruments can work independently and store data locally without the limitation of real-time ac-quisition channels,and they have a high deployment efficiency in complex surface areas.However,the cableless seismic instruments cannot realize the real-time data download and real-time QC,and has long data delivery cycle compared with cabled system.In order to break through the bottleneck brought by the traditional way of using single type instrument,this paper gives the working principle,operation process and technical key points of the hybrid acquisition technology based on satellite timing,and takes a project in Jizhong Depression exploration area of Bohai Bay Basin as an example to illustrate the technical advantages and application effects of this new explora-tion operation way.Finally,the prospect of the application of the hybrid acquisition technology of multi-type seismic instruments is presented in the context of seismic exploration requirements.