METHOD OF OIL DEPOSIT DEVELOPMENT Russian patent published in 2009 - IPC E21B43/16 E21B47/10 

FIELD: mining.

SUBSTANCE: method includes drilling of pressure and producing wells, pressurising of replacing agent into pressure wells and withdrawal of fluids through producing wells. According to the invention there is foreseen a hydro-break; for this purpose an indicator fluid not reacting with formation water, oil and host rock is pumped into well under pressure. Relative to the said well a direction of drilling is fixed in neighbouring by formation well into which maximum amount of indicator fluid has flowed and/or into which indicator fluid has flowed at maximum rate for a certain period. Obtained direction of drilling is taken as the direction of crevice of planned hydro-break. Also necessity of hydro-break performing is determined on the base of defined direction of replacing agent front and on watering of wells. While performing hydro-break to increase level of oil displacement from a formation indicator fluid is repeatedly pumped into the well, subject to hydro-break, and actual direction of the hydro-break crevice is determined.

EFFECT: increased efficiency of deposit development system by optimal directing of crevice opening of hydro-break in formation.

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