Laserfiche WebLink
MONITOR WELL DRILLING AND CONSTRUCTION SUMMARY <br /> NUCLA AND NUCLA EAST MINES <br /> Monitor Well Name GW-N16(WN0016) Geologic Unit Monitored Dakota Coal Underburden <br /> Elevation Ground Level (ft-amsl ) 5673.70 <br /> Location: N 597934.641 E 1 , 117870.98 T 46 N R 15 W S 6 B C C <br /> Total Drill Depth (ft) 158.0 <br /> Total Well Depth (ft) 158.0 <br /> Drilling Details <br /> Borehole Diameter ( in) 7 7/8" Rig Speedstar 1500 <br /> Bits Tricone Driller Allan Chiles <br /> Drilling Fluid Air and Mud <br /> Additional Details Cleaned out hole with MAGCO LMP <br /> Drilling/Construction: Start 06/26/86 Finish 06/28/86 <br /> Lithologic Log (Y/N) Y <br /> Geophysical Log (Y/N) N <br /> Construction Details <br /> Casing Specs : Blank 4" id PVC sch 40 Perforated 0.02" slot <br /> Perforated Intervals) 112.2 - 158.0 <br /> Packer and Cement Basket Set At 112.2 <br /> Cement From 89.2 To 112.2 <br /> Bentonite Slurry From 5.0' To 89.2 <br /> Gravel Pack From NA To <br /> Additional Details While setting the cement plug, approx. 1 gallon water came <br /> out of well pipe. Capped pipe immediately and hoped cement did not pass the <br /> packer. <br /> Development Summary_ No cement in completion interval . Developed for 2.5 hours <br /> and made 2 gpm. <br /> Comments , Problems Contact between Lower Dakota Coal and Underburden at <br /> 108.0 feet <br /> D-7 Revised 11/01/86 <br />