Petrophysical studies are one of the primary sources of information on the availability and distribution of hydrocarbons in the subsoil. These studies involve an integrated survey of geological and geophysical properties of land mass near the wellbore using special instruments for measuring natural and artificial physical fields. 

Acquired data is used to determine the lithology of borehole environment and identify the occurrence intervals of various rocks. The next step is to allocate producing reservoirs and assess their flow properties, including porosity, permeability, hydrocarbon charge, etc.

STC specialists have the task of choosing the optimal range of well surveys, interpret survey results, conduct analytical search of dependencies between various physical properties of the rock, and develop petrophysical models. Petrophysical parameters, along with seismic/dynamic and other surveys, form the basis for subsequent geological modeling of oil and gas deposit and evaluation of hydrocarbon reserves in the deposit, as well as help identify the prevalent trends in spatial distribution of properties.

Seeking to ensure continuous increase of field development efficiency, STC specialists work on making petrophysical surveys more informative. This involves both the use of innovative techniques of geophysical well logging and related logging processes, and optimization of standard formation studies. Introduction of new technologies helps develop more accurate geological models that are later used for selecting specific process solutions in oil production.