METHOD FOR CHRONOSTRATIGRAPHIC INTERPRETATION OF THE SECTION OF A SEISMIC SAMPLE Russian patent published in 2005 - IPC

FIELD: the invention is related to geophysics and may be used in the stratigraphy.

SUBSTANCE: proposed method is based on using the pattern, obtained by summing the continuity curves, presenting the seismic horizons. The aim of the summing consists in determining the geological layers, forming the seismic section in that state, in which they were deposited, but not in the state of their present observation. According to the proposed method it is achieved by conversion of the vertical scale of the seismic section (in the units of seismic time intervals) into the geological vertical scale (in the units of geological time intervals). The conversion is based on the flattening of histograms. The proposed method permits to determine the flattened seismic sections by using the flattened histograms. The flattened seismic sections are used for determination of the deposition rates, which had controlled the deposition of geological layers. In particular, the method permits to detect the geological faults, i.e. erosions and fall-through (gaps).

EFFECT: increased accuracy and reliability of seismostratigraphy.

4 cl, 6 dwg