METHOD OF DETERMINING ELASTIC PROPERTIES OF ROCKS BASED ON STRATAL ADAPTIVE INVERSION OF SEISMIC DATA Russian patent published in 2014 - IPC G01V1/28 

FIELD: physics; geophysics.

SUBSTANCE: invention relates to geophysics and can be used to determine elastic properties or rocks based on seismic data. Disclosed is a method of determining elastic properties of rocks based on stratal adaptive inversion of seismic data, characterised by use of layered models of the environment in which minimum temporary power values τ_min of strata correspond to the real seismic resolution and the sedimentation geology and are calculated using the formula: $${\tau }_{\min }(me)=\frac{1}{4}\ast \frac{1000}{\Delta f},$$ where Δf is operating frequency band. The initial model used is an adjusted geo-acoustic model of impedances of the corresponding well, or an impedance path of seismoacoustic section on a diagonal profile. When constructing the working model, the seismic time section is converted into a detailed layered model of acoustic impedances (seismoacoustic section) from which the range of variation of acoustic parameters of the layers is determined.

EFFECT: high accuracy of evaluating elastic properties of rocks.

1 dwg