NOVELTY - The method involves preparing temporary sealant with particulate material and liquid, where the particulate material and the liquid are mixed to predetermined dilution ratio. The temporary sealant is pumped into fractures (110) via an open hole (101) of a wellbore (100) in a subterranean formation. The particulate material is allowed to accumulate and set within the fractures. The temporary sealant is allowed to degrade, disintegrate and dissolve within the fractures over predetermined period of time. The open hole is drilled after the particulate material is set within the fractures.    USE - Method for providing a temporary sealant utilized for oil and gas well hydraulic fracturing and hydroshearing stimulation in an enhanced geothermal system (EGS) (all claimed) within a wellbore of a subterranean formation.    ADVANTAGE - The method enables ensuring that the particulate sealant material is a combination of organic compounds, inorganic compounds, natural or synthetic minerals, or other material, so that the sealant material used in a temporary formation sealant system (TFSS) leaves behind minimal residue by nature and design, thus preventing damage to the fractures or voids. The method enables maintaining pump pressure at shear failure pressure and controlling and limiting EGS hydroshearing stimulation to prevent tensile failure, so that EGS hydroshearing stimulation opens the fractures and prevents creation of other fractures, thus leaving path for water flow with increased permeability. The method enables ensuring that potentially productive formations within the well are temporarily sealed to allow for production after drilling the well, so that the TFSS can make the well productive and a final economic value of the well can be increased, thus utilizing TFSS in oil, gas and geothermal wells without causing permanent damage to a natural structure of rock formation.    DETAILED DESCRIPTION - The particulate material is boehmite and twaron (RTM: light para-aramid fiber).    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an open hole fracture in a wellbore.    Wellbore (100)    Open hole (101)    Last casing (102)    Last casing shoe (103)    Fractures (110)