Two types of seismoelectric effect (SEF) are distinguished: first- and second-order effects.
The paper summarizes the experimental data on the study of kinematic and dynamic characteristics of elastic waves for 17 wells with a total volume of more than 20000 m, located in different parts of the Pechenga ore field and sufficiently characterizing its section.
In the Pechenga ore field in order to clarify its structures in the near-well and inter-well space seismoacoustic studies are carried out, including vertical seismic profiling (VSP) and acoustic logging (AL).
During field work in 1979 for the first time in the Pechenga ore field was tested a small-size model of acoustic borehole device, made in the All-Union Research Institute of Geophysical Well Research (VNIIGIS) with the participation of Leningrad Mining Institute ...
When evaluating the rheological properties of ice in large ice massifs, the main experimental data are data on the change in time of the diameter of drilled wells