Analytical studies of the application of technologies for the development of oil and gas wells using foam-generating substances

Aim. Assessment of the possibility of using foam and gas generating compounds for the development of oil and gas wells after repairs.
Materials and methods. The classification of chemical reagents that can potentially be used to create a foam gas generating system is based on patent research and analysis of domestic and foreign open sources. The hypothesis of the possibility of developing oil wells after repairs by removing part of the jamming fluid using foam gas generating checkers was tested by modeling the main parameters of the well start in the OLGA software package.
Results. The results of patent and analytical studies show that foam gas generating systems are most often used in gas, gas condensate wells and oil wells operating in the gushing mode. Application in oil wells operated by pumping is limited primarily by the energy of the reservoir and the amount of liquid that must be removed from the bottom of the well. Modeling of the oil well development process has shown that the volume of gas released by the checkers is not enough to promptly trigger an inflow from the reservoir.
Conclusion. The current characteristics of foam gas generating checkers, such as the volume and intensity of gas release, do not allow them to be used in oil wells muffled by mineralized aqueous solutions of salts. The technology can gain development prospects provided that new chemical reagents are selected to increase the volume of gas released. Also, one of the possible improvements may be the development of a technology for dissolving gas in the volume of process fluid filling the well and initiating the process of intensive gas release in a short period of time.

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