Choosing well grid density for low productivity carbonate reservoirs

Based on the analysis and generalization of the experience in developing various groups of low-productivity deposits in the carbonate reservoirs of the Volga-Ural oil and gas province, the article proposes geological and statistical dependencies that allow for a differentiated choice of grid density for wells both between selected groups of objects and within them, depending on the geological characteristics. Technical and economic calculations determined the drilling zones and helped select an optimal well grid density. Calculations were made using geological and commercial data on sufficiently studied deposits, which are currently in the final stage of operation. The results presented in this paper allow us to solve a wide range of field development tasks in order to extract residual oil reserves by drilling new wells with an individual design at each facility or drilling side shafts.