METHOD OF DIRECTIONAL LOADING OF THE PLAST Russian patent published in 2018 - IPC E21B43/18 

FIELD: mining.

SUBSTANCE: invention relates to the technology of downhole production of hydrocarbon feedstocks. Method records the change in the productivity factor during the impact on the bottomhole zone of the well by reducing the pressure on its bottom face. In this case, a determination is made of a stress corresponding to an irreversible increase in the permeability of the rock samples of the productive formation, determined from experiments on the study of the dependence of permeability of rocks in the region of the face on the stresses acting in them. Generate depression at the bottom of the well. Support depression at the same level until the fluid flow rate ceases. Continue to increase the depression at the bottom of the well. Control the flow rate of the well at different values of the depression until the growth of the production rate ceases. Calculation is based on the obtained data for each depression value the well productivity factor determined by analytical expression. With the termination of the growth of the productivity factor, the well is transferred to the operating mode.

EFFECT: increase in the productivity factor in extractive and injective capacity in injection wells.

3 cl, 2 dwg