Research of methods for intensification of oil production from lower cretaceous sediments of Goryacheistochnenskoye field

The oil industry is faced with the task of determining the most effective technological schemes, while ensuring environmental and fire safety, which can increase the return of oil-producing reservoirs. During the development of the Lower Cretaceous oil deposits of the Goryacheistochnenskoye field, located at the eastern end of the Tersk Ridge, there is a tendency to decrease the flow rate of oil production wells due to deposits of hardly soluble asphaltene-tar-parfin substances in the elevator pipes. The drop in the well flow rate led to an increase in the temperature, pressure in the reservoir, as well as the intensity of deposits of colmating elements in the bottom-hole formation zone. The authors of the article propose to solve the problem of selecting an effective method of processing the near-well zone to increase oil recovery and by cleaning from colmating deposits. The main goal of the study is to identify the most effective way to treat the terrigenous near-well zone of the Lower Cretaceous formation in order to influence the skeletal structure of the reservoir rocks and combat colmating deposits. Various methods of impact on the bottom-hole zone of the well were studied. It is proposed to treat the terrigenous formation zones of the Lower Cretaceous deposits with organic RINGO-GKS and MKS solvents. Experimental fire-safe treatment of wells has shown an effective effect on the bottom-hole formation zone and its complete cleaning of colmatate deposits.