Regarded as the restricted area of geophysical exploration, Qiulitag mountains are under dual-complex seismic geological conditions of surface and underground. In this study, aiming at the characteristics of surface shallow structure development, serious stratum fragmentation, deep structure fault block development and complex contact relationship, through wave forward modeling, it is confirmed that the accuracy of shallow surface velocity field is the main factor affecting the imaging accuracy of deep structure, and a high-density 3D seismic acquisition method is designed to improve the imaging accuracy of surface. At the same time, the wire and node mixed acquisition technology, multi-information global optimization technology based on high-precision aerial photos, micro seismic independent excitation technology and MVSP surface survey technology are used to realize the application of high-density 3D seismic technology in the exploration forbidden zone, which effectively improve the quality of seismic data in Qiulitag area.
Presentation Date: Tuesday, October 13, 2020
Session Start Time: 1:50 PM
Presentation Time: 2:15 PM
Location: Poster Station 9
Presentation Type: Poster
