RU2011132730A

RU2011132730A - METHOD FOR OIL PRODUCTION INTENSIFICATION FROM OIL WELL

Info

Publication number: RU2011132730A
Application number: RU2011132730/03A
Authority: RU
Inventors: Петр Олегович Александров; Андрей Анатольевич Воскобойников
Original assignee: Петр Олегович Александров; Андрей Анатольевич Воскобойников
Priority date: 2011-08-03
Filing date: 2011-08-03
Publication date: 2013-02-10

Abstract

1. Способ интенсификации добычи нефти из нефтяной скважины, включающий волновое воздействие на продуктивный пласт, в котором размещена совокупность перфорированных добывающих и нагнетательных скважин, отличающийся тем, что волновое воздействие на продуктивный пласт создают за счет организации в пласте нестационарного гидродинамического режима течения пластового флюида с изменением направления его течения, приводящих к опережающему отбору нефтяной фазы.2. Способ по п.1, отличающийся тем, что нестационарный гидродинамический режим течения пластового флюида создают за счет организации пульсации давления в добывающих и нагнетательных скважинах путем изменения объема отбора нефтяной фазы в добывающих скважинах и/или объема закачки среды в нагнетательные скважины с созданием постоянно меняющихся депрессий в призабойных зонах.3. Способ по п.1, отличающийся тем, что отбор нефтяной фазы в добывающих скважинах и/или закачка среды в нагнетательные скважины осуществляют с частотами, соответствующими частоте собственных колебаний пласта или залежи.4. Способ по п.1, отличающийся тем, что суммарное время депрессионного воздействия на пласт выбирают из условия не превышения им допустимых его значений, могущих привести к разрушению пласта или к прорыву в него воды.1. A method of intensifying oil production from an oil well, comprising a wave action on the reservoir, which contains a set of perforated production and injection wells, characterized in that the wave action on the reservoir is created by organizing an unsteady hydrodynamic flow regime of the reservoir fluid with a change directions of its flow, leading to the leading selection of the oil phase. 2. The method according to claim 1, characterized in that the non-stationary hydrodynamic flow regime of the formation fluid is created by organizing pressure pulsation in production and injection wells by changing the volume of oil phase withdrawal in production wells and / or the volume of medium pumped into injection wells with the creation of constantly changing depressions in the bottomhole zones. 3. The method according to claim 1, characterized in that the selection of the oil phase in the producing wells and / or the injection of the medium into the injection wells is carried out with frequencies corresponding to the frequency of natural oscillations of the formation or reservoir. The method according to claim 1, characterized in that the total time of the depressive effect on the formation is selected from the condition that it does not exceed its permissible values, which could lead to the destruction of the formation or to breakthrough of water into it.

Claims

1. A method of intensifying oil production from an oil well, comprising a wave action on the reservoir, which contains a set of perforated production and injection wells, characterized in that the wave action on the reservoir is created by organizing an unsteady hydrodynamic flow regime of the reservoir fluid with a change directions of its flow, leading to an advanced selection of the oil phase.

2. The method according to claim 1, characterized in that the non-stationary hydrodynamic flow regime of the formation fluid is created by organizing pressure pulsation in production and injection wells by changing the volume of oil phase withdrawal in production wells and / or the volume of medium pumped into injection wells to create constantly changing depressions in the bottom-hole zones.

3. The method according to claim 1, characterized in that the selection of the oil phase in the producing wells and / or pumping the medium into the injection wells is carried out with frequencies corresponding to the frequency of natural oscillations of the formation or reservoir.

4. The method according to claim 1, characterized in that the total time of the depressive effect on the formation is selected from the condition that it does not exceed its permissible values, which could lead to the destruction of the formation or to breakthrough of water into it.