Search academic texts

Information × Registration Number 0299U004322, 0198U008180 , R & D reports Title Working out the base of 3D seismic and VSP technique and software for tracing and mapping hydrocarbon traps tectonic screens in conditions of the complicated tectonics in Ukraine popup.stage_title Head Marmalevs'kyj N.Ya., Registration Date 05-06-2001 Organization Keiv Geophysical Branch Ukrainan State Geological Research Institute popup.description2 The technique and software for forming subvertical geological objects on the basis of the land seismic prospecting and VSP have been elaborated. Seismic imageries within the nearborehole space are formed on the basis of 2D and 3D VSP with the help of migrations, which are realized in the domain frequency - wavenumber. The two versions of the migration have been elaborated, the first being based on the ordinary reflected waves and the second one is based on the complicated reflected (duplex) ones. Duplex waves whose migration is based on the Kirgchoff integral in 2D and 3D versions, are used for the formation of the vertical interface during land seismic prospecting. The ways of the three-dimensional modelling dynamic VSP-data modelling have been modernized, with the help of which in conditions of the complicated constructed anisotropic media the wave field is simulated. Based on the wave theory of dispersion in Bor approximation the programs for subtracting the reflected waves from the earth's surface repeated noise have been worked out. The given method allows to subtract the repeated waves practically without apriori information about medium model without velocities of the waves propagation. The elaborated algorithms and programs in particular tested on the model and field materiel's. The branch of application is geological exploration. Product Description popup.authors popup.nrat_date 2020-04-02 Close