| 摘要 |
FIELD: mining. ^ SUBSTANCE: invention relates to hydropower engineering and can be used to support work of borehole hydropower plants, in particular, thermo water-supply wells and borehole hydroelectric stations. The method includes drilling a well until the zone of loss is reached; connecting a well with a surface reservoir providing the possibility of water control or/and with water-bearing intervals drilled by well, in its upper part, and with the zone of loss, in its lower part; installing either a hydropower plant or an imitator of its resistance, which corresponds to the typical operation of a hydropower plant, in the lower part of a well. For dynamic behavior of a well, the height of dynamic level in a well Hdl (m) is defined; the height of pressure level Hdp is calculated according to the following formula: Hdp (m) =Lhpp-Hdl, where Lhpp is the distance between the mouth of a well and the location of a hydropower plant inside a well, m. Thereafter, spinner survey of the area spread from the dynamic level to the location of a hydropower plant is carried out. The hydraulic horsepower of a flux in the place of a hydropower plant installation Nh is calculated according to the following formula: Nh=p.q.Hdp.Qhpp, where Nh is hydraulic horsepower of water flux inside a well in the place of a hydropower plant installation, W; Qhpp is water loss in the place of a hydropower plant installation, m3/s (from a diagram of spinner survey); p is water density, kg/m3; q is acceleration of gravity, m/s2. ^ EFFECT: higher accuracy of defining hydraulic horsepower of a flux inside a well under different mining hydro geological technical conditions; possibility to forecast and prove methods for improving formation of hydropower fluxes inside energy producing wells. ^ 3 cl, 5 dwg, 3 ex |
