4.11.6. High-Velocity Water Jetting Combined with Simultaneous Pumping The method of high-velocity water jetting results in very effective development of wells. But, maximum development efficiency can be obtained by combining high-velocity water jetting with simultaneous air-lift pumping method (Fig. 4.14). The method requires that the volume of water pumped from a well will always be more than that pumped into it so that the water level in the well is always below the static level and there is a continuous movement of water from the aquifer to the well. This would help remove some of the suspended material loosened by the jetting operation (6).
