Focused Intake Pumping process
Water Well Rehab Inc uses this process in lieu of the standard water well practice of air lifting and swabbing.
The benefits of this process is that no matter what the wells conditions are from how little yield to how much yield the process will work. Also that no matter the drawdown of the well or static level vs pumping levels the process will work.
The process starts with a submersible pump in a can with a vacuum tight seal to create the positive suction and displacement of material concentrated through a 10’ tool with window ways cut with a swab disc above and below the inlet.
With this process coupled to our surge blocking method of the well worm tool we have found this to be the ideal and superior way of performing mechanical rehabilitation vs the traditional methods.
We are able to fully control the flow of the focus intake pump with a VFD control to Taylor to whatever the operating conditions of the well may be. With flow rates in the upward excess of 900 gpm through the 10’ window tool. With this practice vs the traditional practices submergence is never a question. It is completely controllable and gives you the constant rate pumping to focus and concentrate on one zone of the well at a time. With this process we are also able to achieve the pumping and surging process of the rehabilitation throughout the entire screened interval of the well and not just where the pump is set.
To do that process we simply move to a specific zone of the well 10’ per move and pump the water at a high flow rate and then shut the pump off and allow that entire pump column of water drop back to that zone. Once we have continuously done such in a specific zone we then constant pump that zone to measure the TSS “ Total settleable Solids of that zone. Once achieved and below the acceptable amount we then move to the upper zone of the one just completed.
With this process we have successfully dropped wells in upwards of 10.5 ppm of TSS to <1 ppm after a 20 minute period.
Well worm ( surge blocking )specification - Continuous motion achieving a minimum of 125’ per minute with a 10’ tool and a 6’ stroke
Focus intake pumping - Must be able to achieve a constant flow of a minimum of 300-400 gpm. Flow rates must be controllable via a VFD drive to the minimum to maximum flow tailored to the flow rate conditions of the well yield.
Flow rates must be controllable to achieve proper cleaning of lowest to highest screen interval achieving at a minimum of 300 gpm at the highest screen interval provided well produces the flow rates at that level.