Item 28 - Water Well, Pump, and Motor Rehabilitation and Repair Services

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Al RRURST® W 188 S7618 Oak Grove Drive TeOHMLOOU, L L C ,Vluskego, W1 53150-9208 YVeCCcDeve4ment Phoi,e ,_,])h7�, A1,0, i,. www.airbursttechnology.com E-mail: bill@airbursttechnology.com 9. 'The AirBurst air gun has tiring chambers available from I cubic inch up to 500 cubic inches and six different sized air guns for broad application coverage. The 500 cubic inch chamber has the energy potential, in terms of foot-pounds, roughly equivalent to 0.6 pounds (273 grams) of dynamite. The smaller AirBurst air guns can easily and confidently rehabilitate screened sand and gravel wells and even delicate Schedule 80 PVC well screens. According to current Air -Shock literature the largest chamber available is 262 cubic inches with limited port area thereby reducing discharge energy to only 34,6 grams of dynamite at 3000 psi without any hydrostatic pressure. AirBurst air guns have port areas larger than throat areas in air gun so that there is minimal restriction to the energy discharge. AirBurst air guns have many different sized air storage chambers for each air gun, the bottom chambers can simply be interchanged within minutes, when more or less energy is required, Air -Shock must exchange the entire gun For another unit. 'The energy available from a Bolt air gun with a given chamber size and pressure vs the Air -Shock gun is 3 to 8 times greater than Air -Shock, yet the AirBurst energy is adjustable to low enough to address PVC well screens. Air -Shock's energy claim is at 3000 psi without any hydrostatic pressure, the Bolt air gun energy is at a depth of 30 feet, an extremely significant factor in Favor of the Bolt air gun energy, which would be even greater if calculated without hydrostatic pressure. 10, AirBurst has specifically manufactured pneumatic control panels to facilitate sate and accurate pressure operation of the air gun. AirBurst typically uses compressed air or can use nitrogen as the energy source 16r the air gun; the air is not used to penetrate the screen and/or geological formation. The AirBurst can be provide mathematical calculation in Excel format, to determine bubble size so that the gas does not penetrate the screen; other companies use random pressure and air gun sizes. 11. AirBurst routinely uses the inning and efficient supply of compressed air from high pressure and low volume air compressors, a constant pressure is maintained throughout the project, unlike depleting nitrogen cylinders. MrBurst can also efficiently use compressed gas such as nitrogen if specified. However, it is important to note [hat the air produced by all compressors is 78% nitrogen, so the use of nitrogen gas is of little benefit. AirBurst equipment is trailer mounted and is totally self-contained, there is no waiting for gas suppliers to deliver nitrogen, which can be a major issue if additional gas is need for a big project, there is no additional expense for more compressed air and no waiting. The electronic ail' gun shuttle timing assures the most efficient use of the gas, where Air -Shock has no control of the efficiency nor does Air -Shock normally otter an air compressor option, it must rely upon delivery of nitrogen to each project location by the nitrogen supplier. 12. AirRurst equipment gives luII surtace_t?prratimial cowriil and flexibility to the AirBurst technician, The intensity ofenergy discharges from the air gun is changed at the turn o f a pressure regulator valve. The frequency of the energy discharges can be increased or decreased by movement of a dial on the electronic control panel, all without removal ol'tlw cquipwnt_I"rc�m the ��_rlj. Air -Shock does not have these types of controls. 13. AirBurst does not use packers or surge block plates, which can trap air/gas and force air into the well formation 14. AirBurst tool is supported by and hoisted by a high strength wire rope from a pump service crane; Air - Shock is supported and hoisted by an air hose on a portable reel with minimal lifting capacity. Which one would you want supporting the tool in a tight hole?