METHOD FOR FORMING CUBE OR SECTION OF SITES, METHOD OF AUTOMATIC HORIZONS/HODOGRAPHS TRACKING AND METHOD FOR AUTOMATIC DETECTION OF TECTONIC DEFORMATION ZONES AND FRACTURE ZONES

摘要

FIELD: data processing; geophysics.;SUBSTANCE: invention relates to the processing of seismic data in the field of geophysics and can be used in seismic operations. Three methods are proposed, connected by a single inventive concept. Method of forming a cube or a section of sites on the basis of an array of initial seismic data includes the estimation of the parameters of seismic waves along each path of both kinematic and dynamic parameters of the waves, wherein it includes the following operations for each seismic recording trace: directional summation of at least two nearest traces in a predetermined range of horizon/hodograph slope angles to obtain a three-dimensional or two-dimensional scan result (cube or scan section), search for local extremes in scan results, clarifying the position of each extremum, the definition of "side" results and the formation of a cube or a section of sites according to the location of the extremums found. Method for automatically tracing horizons/hodographs along a section or cube of sites, including those obtained by the claimed method of forming a cube or a section of sites, in which the horizon is formed from a set of areas that are piecewise linear approximation of a surface that is smooth or has a finite number of discontinuities along which a continuous smooth curve can be drawn, and as a criterion for combining at least two sites in the horizon, the conditions of mutual consistency of the sites are used. Method of automatic detection of zones of tectonic deformations and zones of fracturing along a cube or a section of sites, including those obtained by the claimed method of forming a cube or a section of sites, consists in detecting portions of an array of initial seismic data in which the regularity condition of the waves is violated, in this case, as a criterion for violating the regularity condition of waves, a measure of the misalignment of a plurality of sites is used.;EFFECT: increased accuracy, reliability and automation of the processes of forming a cube or section of sites, tracing horizons/hodographs and identifying zones of tectonic deformations and fracture zones.;19 cl, 18 dwg