METHODS OF OBTAINING HYDROCARBON MATERIAL, CONTAINING IN UNDERGROUND FORMATION, AND RELATED STABILIZED EMULSIONS Russian patent published in 2019 - IPC C09K8/20 E21B43/22 C09K8/60 

FIELD: technological processes.

SUBSTANCE: invention relates to production of hydrocarbon material contained in an underground formation. Method of producing hydrocarbon material from a subterranean formation, comprising formation of a flooding suspension, comprising decomposable particles and a carrier fluid, pumping of the suspension into a subterranean formation containing a hydrocarbon material, to form an emulsion stabilized by the decomposable particles, and to remove the emulsion from the subterranean formation, and degradation of at least a portion of the decomposable particles after removal of said emulsion from the subterranean formation. Method of producing hydrocarbon material from a subterranean formation involves forming nanoparticles, each of which contains a core containing at least one of the following metals: Mg, Al, Ca, Mn and Zn, and shell, encapsulating core and containing an organic material, combining nanoparticles with a carrier fluid to obtain a water flooding suspension, pumping a suspension into a subterranean formation containing a hydrocarbon material bonded thereto, to separate it from surfaces and form an emulsion stabilized with nanoparticles, remove emulsion from the subterranean formation and modify at least one of the following parameters: temperature, pH and composition of the emulsion material, after removal of emulsion from underground formation for interaction of at least part of nanoparticles with water material to destabilize emulsion and coalescence of hydrocarbon material. Stabilized emulsion containing a dispersed phase comprising a hydrocarbon material, a continuous phase comprising an aqueous material, and hydrophilic nanoparticles, accumulating at phase boundary between dispersed phase and continuous phase, where some amount of hydrophilic nanoparticles contains core containing Mg-Al alloy, intended for switching between first corrosion rate and second higher rate of corrosion as a result of change of at least one property: raising the temperature of the water material and reducing the pH of the aqueous material, and a shell, an encapsulating core and containing a polymer material. Invention is developed in dependent items of the formula.

EFFECT: technical result is the increase in the treatment efficiency.

20 cl, 1 dwg