Terms of use: steam collector with flooding of products more than 30%.

Technology: injection into the reservoir of the oil well of an aqueous solution of carpathole UM-1 or carpathole UM-2 of a given concentration. The concentration of petroleum sulfonates in the solution is determined in the process of saturation studies of the sample material in different systems. The solution can be preheated to a temperature of 30-50 ° C. Holding time in the formation – from 6 to 48 hours.

Terms of use: steam collector with hydrophobic saturation and watering of products more than 10%.

Technology: successive injection into the reservoir of the oil well first hydrocarbon surfactant solution, and then 0.5-5% aqueous solution of carpathole UM-1 or carpathole UM-2. The solution can be preheated to a temperature of 30-50 ° C. As surfactants use either oil-soluble or oil- and water-soluble surfactants with high oil recovery capacity. Holding time in the formation – from 6 to 24 hours.

Terms of use: pore collector with content of asphalt-resin-paraffinic substances in oil more than 3%.

Technology: sequential injection into the reservoir of oil well 0.5-5% aqueous solution of carpatole UM-2 and acid solution. Carpatole solution can be preheated to a temperature of 30-50 ° C. The composition of the acid solution is selected depending on the component composition of the formation rock. Holding time in the formation – from 1 to 4 hours.

Terms of use: contaminated pore collector with flooding of products more than 50%.

Technology: sequential injection into the reservoir of oil well 0.5-5% aqueous solution of carpathole UM-1, buffer solution surfactant (nonionic surfactant or a mixture of nonionic surfactant and water-soluble polymer) and acid solution. The carpatole solution can be preheated to a temperature of 30-50 ° C. The composition of the acid solution is selected depending on the component composition of the formation rock. The holding time in the formation is from 1 to 4 hours. The buffer solution of surfactants ensures the prevention of mixing carpatol UM-1 with acid solution and salting out carpatol from solution.

Terms of use: contaminated pore collector with flooding of products more than 50%.

Technology: implemented in two modifications depending on the acceptability of the injection well. With good acceptability of the well, the technology consists in sequential injection into the formation of the injection well 0.5-5% aqueous solution of carpathology, buffer of fresh or formation water and acid solution. Carpatole solution can be preheated to a temperature of 30-50 ° C. The holding time of carpathole in the formation is at least 24 hours. The composition of the acid solution is selected depending on the component composition of the formation rock and the introduced contaminants. Holding time in the formation – from 1 to 4 hours.

At low acceptability of the well, an acid bath is first installed in the area of the productive formation. After achieving good acceptability and removal of the neutralized solution on the surface, the next treatment is carried out according to the standard scheme.

Terms of use: Acid treatment of the injection well with pre-injection of an aqueous solution of carpatole

Technology: sequential injection into the reservoir of oil well 0.5-5% aqueous solution of carpatole UM-2 or a mixture of carpatole UM-1 and nonionic surfactants, one or two acid solutions and 0.5-5% aqueous solution of carpatole UM-2 or a mixture of carpatole UM -1 and nonionic surfactants in a volume that ensures the displacement of the acid solution to a depth of at least 2 m. The composition of the acid solution is selected depending on the component composition of the formation rock.

Terms of use: repeated acid action of the pressure collector with flooding of products more than 50%.

Technology: sequential injection into the formation of an oil well of acid solution, buffer of fresh or formation water and 0.5-5% aqueous solution of carpathole. The carpathole solution can be preheated to a temperature of 30-50 ° C. The composition of the acid solution is selected depending on the component composition of the formation rock. Processing can be carried out without the use of buffer – in this case, the well is mastered, and the injection of carpathole is carried out only after the selection of the full volume of acid solution.

Terms of use: contaminated pore collector with flooding of products more than 50%.

Technology: sequential injection into the reservoir of oil well 0.5-5% aqueous solution of carpathole, self-destructive polymer solution and 0.5-5% aqueous solution of carpathole. The carpatole solution can be preheated to a temperature of 30-50 ° C. The composition of the self-destructive polymer solution is selected depending on the acceptability of the layer and the time required for aging. The holding time in the formation depends on the purpose of carpathology (from 4 to 48 hours). The destruction time of the polymer solution depends on the formation temperature and the concentration of the destructive agent and occurs spontaneously in formation conditions.

Terms of use: inhomogeneous steam collector with flooding of products more than 20%.

Technology: sequential injection into the reservoir of the oil well of the polymer solution and 0.5-5% aqueous solution of carpathole. The carpathole solution can be preheated to a temperature of 30-50 ° C. The choice of polymer solution depends on the purpose of the action – the minimum impact on the permeability of the partially watered layer or the maximum negative impact on the permeability of the watered layer. The holding time in the formation depends on the purpose of using carpathole (from 12 to 48 hours).

Terms of use: inhomogeneous pore collector with flooding of products more than 50%.

Technology: sequential injection into the oil well of a suspension of water-swellable polymer (eg, Polycar) and 0.5-5% aqueous solution of carpathole. The carpathole solution can be preheated to a temperature of 30-50 ° C. The choice of water-swellable polymer depends on the purpose of action and permeability of the formation – the minimum impact on the permeability of the partially flooded layer or the maximum negative impact on the permeability of the flooded layer. The holding time in the formation depends on the purpose of using carpathole (from 12 to 48 hours).

Terms of use: inhomogeneous steam collector with flooding of products more than 70%.

Technology: sequential injection into the oil well of a suspension of water-swellable polymer (eg, Polycar) and 0.5-5% aqueous solution of carpathole. The carpathole solution can be preheated to a temperature of 30-50 ° C. The choice of water-swellable polymer depends on the purpose of action and permeability of the formation – the minimum impact on the permeability of the partially flooded layer or the maximum negative impact on the permeability of the flooded layer. The holding time in the formation depends on the purpose of using carpathole (from 12 to 48 hours).

Terms of use: inhomogeneous steam collector with flooding of products more than 70%.

Technology: sequential injection into the reservoir of oil well 0.5-5% aqueous solution of carpathole, suspension of polymer Aquasorb and 0.5-5% aqueous solution of carpathole. The carpathole solution can be preheated to a temperature of 30-50 ° C. The holding time in the formation is from 12 to 48 hours. Aquasorb polymer provides blocking of perforations in the process of injection of the solution. Release of layers is reached at operation of a well or at contact with mineralized solutions.

Terms of use: inhomogeneous steam collector with flooding of products more than 70%.

Technology: injection into the reservoir of an oil well of a surface-active polymer-containing system based on carpathole. The composition of the PAPS is selected from the condition of maximum displacement of residual oil for the conditions of a particular field. The holding time in the formation is from 12 to 48 hours.

Terms of use: inhomogeneous pore collector with flooding of products more than 30%.

Technology: sequential injection into the reservoir of oil wells of surface-active polymer-containing systems based on carpathole. The composition of the second PAPS is selected from the condition of maximum displacement of residual oil for the conditions of a particular field. The composition of the first PAPS is selected on the basis of effective displacement of residual oil and the creation of a highly viscous buffer in the highly permeable zone. The holding time in the formation is from 12 to 48 hours.

Terms of use: inhomogeneous steam collector with flooding of products more than 50%.

0.5-5% aqueous solution of carpatole is used as a fluid for mini-fracturing to determine the parameters of the main hydraulic fracturing.

Technology: injection into the formation before the rupture fluid 0.5-5% aqueous solution of carpathole to reduce the negative impact of the rupture fluid on the permeability of the productive formation.

Terms of use: low permeable steam collector with low oil flow.

Technology: injection of surfactant-based microemulsions based on carpathole and condensate into the oil well layer. To stabilize such a surfactant microemulsion, the solution is passed through a hydraulic whistle. The composition of the microemulsion surfactant is selected from the condition of maximum displacement of residual oil for the conditions of a particular field. The holding time in the formation is from 12 to 48 hours.

Terms of use: pore collector with flooding of products more than 50%.

Technology: injection into the reservoir of the oil well of a biopolymer microemulsion of surfactants based on carpatol and condensate. No additional stabilization is required for such a system. The composition of the surfactant microemulsion is selected from the condition of maximum residual oil displacement for the conditions of a particular field. The holding time in the formation is from 12 to 48 hours.

Terms of use: inhomogeneous steam collector with flooding of products more than 50%.

Technology: sequential injection into the reservoir of high-viscosity and low-viscosity microemulsions of surfactants based on carpathole and condensate. Additional stabilization for the microemulsion depends on its composition. The composition of the surfactant microemulsion is selected from the condition of maximum residual oil displacement for the conditions of a particular field. The holding time in the formation is from 12 to 48 hours.

Terms of use: inhomogeneous steam collector with flooding of products more than 50%.

Technology: injection into the reservoir of oil well self-deflecting acid system based on carpathole UM-1. The composition of the self-repellent acid system based on carpathole UM-1 is selected from the condition of ensuring the maximum increase in dynamic viscosity in the process of neutralizing the acid solution. The holding time in the formation is from 1 to 6 hours.

Terms of use: inhomogeneous steam collector with flooding of products more than 20%.

Technology: injection into the reservoir of oil well self-deflecting acid system based on carpathole UM-2. The composition of the self-repellent acid system based on carpathole UM-2 is selected from the condition of ensuring the maximum increase in dynamic viscosity in the process of neutralizing the acid solution. The holding time in the formation is from 1 to 6 hours.

Terms of use: inhomogeneous steam collector with flooding of products more than 20%.

Technology: sequential injection into the formation of the injection well 5-20% of the border of 0.5-5% of an aqueous solution of carpathole, 5-30% of the border of 0.01-0.1% of the polymer solution and formation water.

Terms of use: part of the site or productive layer, characterized by a pore collector with a permeability of up to 0.1 μm².

Technology: sequential injection into the formation of the injection well 5-20% of the border of 0.5-5% of an aqueous solution of carpathole, 5-20% of the border of the crosslinked polymer system and formation water.

Terms of use: part of the site or productive layer, characterized by a fractured-porous reservoir.

Technology: sequential injection into the formation of the injection well 5-20% of the border of the crosslinked polymer system, 5-20% of the border of 0.5-5% aqueous solution of carpathole, 5-20% of the border of the crosslinked polymer system and formation water.

Terms of use: part of the site or productive layer characterized by a fractured or fractured-porous collector with a permeability of more than 0.5 μm².

Technology: sequential injection into the formation of the injection well 5-20% of the border of the surface-active polymer-containing system based on 0.5-5% of carpathole, 5-30% of the border of 0.01-0.1% of the polymer solution and formation water.

Terms of use: part of the site or productive layer characterized by a pore collector with a permeability of more than 0.05 μm².

Technology: injection into the reservoir of oil well 1-5% aqueous solution of carpatole. The holding time in the formation depends on the time of KiPRS.