Аннотация
When preparing Wells, the technology of pumping the produced water into the well is used to maintain pressure.from the point of view of Occupational geology, all waters in oil and gas fields are divided into different categories. Own waters, or otherwise residual waters, are pressurized waters that form in the oil and gas reservoir. This type of reservoir water is the main type of groundwater. To maintain the pressure in the oil and gas reservoir, natural (fresh or weakly mineralized) and flowing(drainage) waters, mainly in the reservoir (85%), fresh ( 10 %) and Storm (5 %) waters, can be pumped. More than 1 billion m3 of water flows into the layer, including 700-750 million m3 of fresh water. Field location projects should take into account the fact that in parallel with the growth of oil production in oil production wells, there is an increase in waterlogging, therefore, the water supply system should be designed and built taking into account the 100% utilization of all professional wastewater from Field oil treatment plants in the reservoir pressure maintenance system (CPF). The pumped water must be in harmony with the layer. The presence of mechanical impurities is sometimes associated with a violation of water stability. This can be a consequence of irreversible chemical reactions, accompanied by the ingress of solid salts from saturated solutions.