Geophysical well logging

The field geophysical surveys are applied in studies of the rocks in the well-head area and inter-well space by means of measurement and interpretation of natural or artificial physical parameters of various types.

This is the main method for geological documenting of the well logs, which gives a great economic effect by reducing the scopes of core sampling and number of reservoir tests.

The data obtained in the course of the surveys provide the dissection of the well logs into reservoirs, determination of the lithology and depth of the deposit, identification of commercial minerals, correlation between the well logs, assessment of the reservoir parameters for calculation of the reserves, determination of the deposit volume, and analysis of physical and mechanical properties of the rocks. The application of specially developed data analysis methods allows to identify previously missed deposits of oil and gas, which increases the lifetime of the deposit fields.