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Detonator placed at 20 feet <br />50' <br />Detonating Cord <br />Start 20 feet <br />Intervals Linear <br />End 220 feet <br />Strength 200 grain <br />Total 200 feet <br />ISO' <br />200' <br />*Tylor McMillan's Well Service reserves the right to change or modify the charge in <br />any vvay necessary to maintain the safety o f all personnel onsite and in surrounding <br />areas. <br />350' <br />400' <br />'11IPor McMillan's Well Sere <br />12302 Andes Ave. Bakersfield CA, 93312 <br />Phone: (916) 761-5224 Email: mcmil1ans521(ag mail .co m <br />Webs ite: www.wellb las ter.com <br />Date: December 17, 2017 <br />BLASTING WORK PLAN <br />Well: EW-4A <br /> Location: 16777 Howland Road Plan date and time : Pending <br />Casing 8 -inch ID Steel to 220 feet <br /> Lathrop, CA <br />-)50' <br />300' <br />Total Explosives <br />5.6 lbs. <br />Boosters <br />Density g/cc 1.55 g/cc <br />Detonation Velocity 24,000 ft/s <br />Casing Diameter 8 inches <br />Charge Wt. 0.15 Kg <br />Detonation pressure 207 k/bar <br />Total energy ea. 13,997 k/bar <br />Pressure at casing 52.21 k/bar <br />Pressure at 10 feet 0.00 <br />Explosive Cord <br />Density g/cc 1.60 g/cc <br />Detonation Velocity 22,000 ft/s <br />Casing Diameter 8 inches <br />Grains 200 gr/ft <br />Detonation pressure 180 k/bar <br />Total energy pef ft. 87 k/bar <br />Pressure at casing 1.74 k/bar <br />*These are estimated pressure for a empty well <br />Site procedure <br />Check site and measure well depth <br />Clear work site of all unessential personal <br />Lower charges and drop pipe into the well <br />Pump sealing material to top of well <br />Check and clear blast area (sound blast warning) <br />Arm explosives <br />Confirm area clear (final blast warning) <br />Detonate charge <br />Check hole and sound all clear <br />Refill cement to top of well to form a mushroom cap <br />7,315 m/s <br />150 grams <br />781,540 psi <br />29 psi <br />6,706 tn/s <br />12.96 g/ft <br />26,031 psi <br />Name of Blaster Preparing Plan: Tylor McMillan <br />450'