FIELD: seismic prospecting for oil and gas fields under complex seismic and geological conditions. SUBSTANCE: kinematic parameters of reflected waves are found by usage of local conversion operator to store seismograms to improve resolution of seismic records and to enhance authenticity of construction of seismic images. Depth and speed parameters of medium are found with test of adequacy of chosen model of medium and real data by way of solving inverse problem by two methods: one using edge conditions on roof and the other one- on floor and by comparison of their results. Migration of temporary section within bounds of formation model of medium is implemented layer by layer with allowance for adequacy of chosen depth and speed model to real medium. EFFECT: improved resolution of seismic records and enhanced authenticity of construction of seismic images. 1 dwg
Authors
Dates
1999-02-27—Published
1998-07-16—Filed