MODE OF SEISMIC RECONNAISSANCE Russian patent published in 2005 - IPC

FIELD: seismic reconnaissance.

SUBSTANCE: intervals with ramp gradients of speed of spreading of fluctuations are picked out in a geological section. Parameters of interferential system of excitation are determined for these intervals of the section. The parameters include linear dimensions of the base of a group of oscillators, the distance between oscillators and their number, frequency structure and duration of sweep. Oscillators are located at fixed distances one from another. Elastic vibrations of the group of oscillators are excited in series. Elastic vibrations received for each interval of the section at fixed number of oscillators of elastic vibrations are registered. At completion of the full cycle of observations at one placing of oscillators the group of oscillators is moved one step further. This step is equal to the distance between oscillators and the cycle of observation is repeated fulfilling observations in accordance of the whole profile with the duration of recording exceeding intervals of registration of waves from the base of processing intervals. Groups of seismograms are made and compiled. Summary seismograms of elastic vibrations are formed. On the basis of received results makeshift sections are built.

EFFECT: increases effectiveness.

1 dwg