Development of the Impermeable Membranes Using Directional Hydraulic Fracturing

To solve various technological problems of mining, such as, prevention of air inflow into coal-seam degassing holes and steam entry into underground galleries when thermoshaft production of heavy oil is performed. There are developed the chemical compositions to form the membranes' impermeable and drainage elements. Also, there is provided the stand's description and laboratory studies' results which are the compositions' influence on permeability of porous medium. A method of creating membranes by hydraulic fracturing of the rocks, in which to get a transverse fracture, shear loading of the walls along the wellbore axis is used. A comparative analysis of this method with directional hydraulic fracturing on the basis of slot initiator is performed. In the article calculations of influence of the fracture pressure and fracture propagation from the wellbore and fracture radii are presented. The technological advantages of the developed method of hydraulic fracturing for the creation of impermeable membranes are represented.