| 摘要 |
FIELD: petroleum industry. ^ SUBSTANCE: the invention is dealt with petroleum industry and may be used at development of oil-and-gas deposits by different methods, including at the late stages of development and in the complicated geologic-physical conditions. The invention ensures an increase of efficiency of a bed stimulation by elastic vibrations by making the most favorable conditions for replacement of petroleum from seams, in particular from seams of the composite geologic structure, magnification of development of a seam, decrease of power costs. Substance of the invention: the method includes takeoff the seam liquid through producing boreholes and stimulation of stratum by elastic vibrations. It is exercised at creation in a productive stratum of non-stationary and-or alternating differential pressure and-or mechanical stresses. At that the given action is exercised with values of a vibratory acceleration and a vibratory shifts, that is determined from the minimum condition of the analytical form which is taking into account the characteristics of a porous medium, for example, a characteristic diameter of porous channels and the trial threshold parameters, defined on assemblage of properties of saturating phases and structures of a productive stratum. ^ EFFECT: the method allows to increase efficiency of a bed stimulation to force oil out of the bed. ^ 27 cl, 1 ex, 2 dwg |
