On the Placement of Industrial Effluents in Deeplying Oil and Gas Complexes in the Territory of the Solikamsk Depression (Perm Region, Russia)

Currently, for enterprises engaged in mineral extraction in the Solikamsk Depression, the issue of disposing of industrial wastewater – including produced water associated with oil extraction and brines generated during the mining and processing of potash salts – is highly relevant. The most environmentally safe method of disposal is considered to be deep-well injection into deep aquifers. The article analyzes the legal aspects of organizing and operating deep-well injection sites, including the use of existing licensed areas and the procedure for obtaining new licenses for injecting industrial wastewater into deep aquifers. Methodological approaches to underground wastewater injection, as well as criteria for selecting suitable injection sites, are outlined. An analysis of the geological structure of sedimentary strata in the northeastern part of the Volga-Ural oil and gas province is conducted, assessing their spatial distribution, filtration-capacity properties, and the compatibility of native groundwater with the injected wastewater. It has been established that the Tournaisian-Famennian carbonate complex is the most promising for industrial wastewater disposal. Applying an integrated approach to evaluating geological and technological factors will help develop effective solutions to reduce the environmental impact on natural systems.

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