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� A ► = ZI or*] !.: ANAL <br /> Exploded Perforator Model How HOLTE Perforator works <br /> Designed for use with Rotary Drills, the HOLTE Perforator <br /> threads onto a standard Drill String. Either through <br /> Standard API knowledge of water depth,or watching the cuttings for tell- <br /> Top Sub tale signs like water, gravel, or sand, the Perforator can be <br /> lowered to the exact depth of the aquifer. <br /> Applying a small amount of air pressure (90 PSI, any CFM) <br /> the Perforator Cutting Wheel extends and bites into the <br /> Casing wall. As the Rig pushes the Perforator down the <br /> Casing pulls the Cutter out fully (after-6" of travel) and the <br /> Perforator starts punching holes in the casing that are about <br /> 1"long,0.25"wide,and spaced about 1.5"apart. <br /> Cutter Wheel After quickly perforating a column,the Drill String is returned <br /> Assembly to the starting location,air is turned off to retract the Cutter, <br /> then the String is rotated to start the next column of <br /> perforations. Good practice is to put a column in about <br /> . every 4-5 inches around the Casing diameter—about 4 or 5 <br /> columns for 6"Casing. <br /> ► 4",6",and 10"for various Casing sizes <br /> Piston and Cylinder o- PVC and Steel Cutting Wheels <br /> ® Roller and Slide Adapters for up to 24" Casing <br /> I► Custom Adapters for odd and large sizes <br /> it. Push or Pull Operation <br /> Aft <br /> Yoke Return Rod ► Operates easily underwater <br /> Assembly for <br /> Cutter Retraction <br /> Perforator in(mm) Top Sub <br /> 4" (102) 2-7/8 API Regular <br /> 6" (152) 3-1/2 API Regular <br /> Large-10" (254) 4-1/2 AN Regular <br /> Q; Air Actuated <br /> Pop-off Valve for <br /> Cutter extension <br /> H 0 LT EM A N U F A C T U R I N <br />