Geological setting and petrophysical modeling features of Ust-Kut Carbonate Reservoirs (Nepa-Botuoba Petroleum Province)

Distanova L.R. lrdistanova@tnnc.rosneft.ru “Tyumen petroleum research center” LLC Tyumen
Kovalenko E.V. “Tyumen petroleum research center” LLC Tyumen
Arzhilovskaya N.N. “Tyumen petroleum research center” LLC Tyumen
Maksimova E.N. “Tyumen petroleum research center” LLC Tyumen
Nedelko O.V. “Tyumen petroleum research center” LLC Tyumen
Chertina K.N. “Tyumen petroleum research center” LLC Tyumen
DOI: 10.24412/2076-6785-2022-3-22-26

Abstract
This article contains detailed geological description and petrophysical modeling features of productive deposits in the Ust-Kutsky horizon of the North Danilovskoye Field of the Nepa-Botuoba Petroleum Province (NBP). The sediments have rather complex vertical distribution and variable reservoir properties. A complex of laboratory studies has been made and sedimentation-capacitive model of the pore space was developed according to the fact of the specific composition of sediments and facies heterogeneity. The presented approaches open up opportunities for the highest reservoir properties zones discovering.

Materials and methods
Materials: macro and micro core descriptions, laboratory researches, Interpretation of facies well logs correlation, well correlation, facies correlation, mapping, petrophysical modeling, petrophysical functions analysis.

Keywords
organogenic buildup, the Lower Ust-Kutsky horizon, sublittoral, petrophysical modeling, sedimentation-capacitive model
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