METHOD OF HYDROCARBON DEPOSIT OPERATION Russian patent published in 2009 - IPC E21B43/16 E21B43/26 

FIELD: oil and gas production.

SUBSTANCE: invention refers to oil and gas industry and can be implemented at completion stage of massif and bed-massif deposits with top of great thickness and under laid with bottom water actively intruding into producing part of bed. The essence of the invention is as follows: the method consists in drilling a horizontal well, in perforating it and in forming fissures with successive hydraulic break in the bed starting from the further from a vertical portion of the well end by means of insulating each perforated interval from the rest of the column with a packer; the following operation of the horizontal well is carried out via breaks in the bed. According to the invention hydraulic break of the bed in each interval is performed with successive decreasing value of break pressure from maximum possible value in the nearest section at operation of deposit with active bottom water, oil yield not more 92% and the highest oil-gas saturation in the section nearest to vertical section of well. Also maximal pressure of break is accepted as value not exceeding ultimate allowed value for destruction of rock skeleton of the given bed; while operation of the bed is executed at depressions onto the bed preventing drawing of bottom water.

EFFECT: facilitation of maximal possible production of oil and gas from hydrocarbon deposits.

3 cl, 2 dwg