RECOVERY OF OIL OR GAS WELL PERMEABILITY Russian patent published in 2014 - IPC E21B28/00 E21B43/25 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to oil and gas production, particularly, to the recovery of the well permeability and can be used for the well repair. The proposed method comprises using the laser radiation to act on the well fluid at a power to develop plasma breakdowns in the fluid. Note here that, first, the laser pulse or intermittent radiation is used to generate the said breakdown and, thereafter, the frequency of an acoustic signal originating at the said breakdown is measured. Then, further effects in the pulse mode are used at the said frequency of the laser radiation.

EFFECT: profound effects on the well walls, higher permeability of the well (oil yield).

3 cl, 1 dwg, 1 ex