HYDRODYNAMIC STUDIES OF WELLS AS A TOOL FOR ASSESSING THE EFFICIENCY OF DEVELOPMENT OF THE KALAMKAS FIELD

Abstract

The article presents the results of hydrodynamic studies of injection wells in the Ю-1 Center and Ю-3 PZ+SPS sections of the Kalamkas field, carried out in 2022–2024, both before and after the implementation of polymer flooding and polymer flooding combined with SPS technologies. The studies were conducted using the pressure decline curve method, followed by interpretation in the “Sapphire” software using radial, radial-composite, and fracture reservoir models. It was established that the main flow regime is radial, while after the implementation of polymer technologies, linear and bilinear flow regimes were observed in some wells, associated with the development of fracturing. An increase in effective permeability, hydraulic conductivity, and injectivity coefficient, as well as an improvement in the condition of the near-wellbore zone, was demonstrated, confirming the effectiveness of applying polymer technologies at the Kalamkas field.