Features of waterflooding of carbonate deposits in abnormal operating conditions.

In this work, the authors solved the problem of inefficient flooding of low-yielding deposits, the share of which in the territory of the object of study is up to 75%. Using calculations based on previously developed and tested formulas, expressions were obtained that allow planning the most optimal placement of wells to increase reservoir coverage and, consequently, increase the oil recovery coefficient. The presented formulas can be used at the facilities of the Volga-Ural oil and gas province, in particular for deposits confined to the carbonate reservoirs of the Verey, Bashkir and Tournai horizons. Generalization of the experience of developing low-yielding deposits using flooding allowed us to obtain results at a high quantitative and qualitative level. In the course of the study, a number of valuable and applied conclusions were obtained, which must be taken into account when implementing a systematic approach to the issue of extraction of residual reserves of liquid hydrocarbons. [ABSTRACT FROM AUTHOR]