Optimization of technological parameters of airlift operation when drilling water wells

Purpose. Development of a methodology for optimizing the technological parameters airlift operation, based on analysis pressure balance in annulus and drill string that occurs during drilling. Methodology. The tasks were solved by complex research method, which includes review generalization literary patent sources, analytical studies existing methods drilling with reverse circulation using an airlift. Findings. It has been established study method rotary circulation, important role is played arising course string. takes into account both hydrostatic pressures losses pumping water water-air mixture. A technique developed assessing effect rate penetration parameters. Originality. For first time, it shown makes possible to establish, given accuracy, average effective values output parameters: density mixture, its upward flow rate, air at velocity as approaches mixer. Practical value. proposed establish dependence depth well, well required compressor performance provide fluid rate.