Geological Exploration Work

Geological Exploration Work

In the Republic of Tatarstan.

In 2018, PJSC TATNEFT named after V.D. Shashin in conjunction with subsidiaries and affiliates operating in the Russian Federation, had 98 geological exploration licenses, including the search and evaluation of mineral deposits, exploration and mineral resources extraction (MRE).

Prospecting and exploration operations in the territory of the Republic of Tatarstan were carried out in the areas located within the Cheremshan-Bastryk, Tlyanchi-Tamak, Stepnozerskaya exploration zones at the Agbyazovsky, Ersubaykinsky and Sokolkinsky subsoil areas. The volume of the exploration drilling amounted to more than 18 thousand meters

Outside the Republic of Tatarstan.

In 2018, the exploration operations were carried out in the territories of the Ulyanovsk, Orenburg, Samara regions, the Nenets Autonomous District and the Republic of Kalmykia. In 2018, seismic 2D exploration using the CDP method was performed at 550 linear km and 3D CDP was carried out at 114 km2. The total volume of the prospecting and exploration drilling operations amounted to more than 8 thousand meters in 2018.

A gas condensate field named after V.E. Bembeyev was discovered outside the Republic of Tatarstan (in the Republic of Kalmykia) in 2018.

Brief Summary of the Work for Identifying and Studying Hard-no-Recover Reserves (HTR)

As part of the production activities of PJSC TATNEFT, the Company conducts research and development of subsoil resources containing unconventional hard-to-recover reserves, which the Domanik productive deposits and high-viscosity oil pertain to.

In 2018, the Domanic deposits (Zavolzhsky horizon) were tested in the wells of the Romashkinskoye oil field. Carrying out the acid fracturing allowed producing commercial oil inflow to the well bore after the well completion and testing.