EXPERIENCE IN APPLICATION OF TEMPERATURE AND PRESSURE PARAMETERS OF THE FORMATION EXPOSED BY WELLS FOR THE EVALUATION OF OIL-AND-GAS-BEARING PROSPECTS OF THE PRE-URALS FOREDEEP
Oil-and-gas prospecting and exploration on the territory of the Pre-Urals foredeep, Orenburg Region are complicated by its salt tectonics, as well as abnormally high pore and formation pressures. Temperature and pressure parameters of the formation exposed by wells have been used for the evaluation of oil-and-gas-bearing prospects. They have been found from pore pressure measurements in individual wells by the equivalent depth technique, from direct measurements of formation pressures in testing the formations with drill-stem formation testers, as well as from the results of using PetroMod software system. PetroMod allowed simulation of thermal evolution in the sedimentary section along the profile crosscutting the Pre-Urals foredeep in the meridional direction.