2018-04-18_PERMIT FILE - C1981022A ‎(2)‎

• Permit No: C1981022A
• IBM Index Class Name: Permit File
• Doc Date: 4/18/2018
• Doc Name: Borehole Abandonment Reports
• Section_Exhibit Name: Exhibit 2.04-E3 Tab I/Item 9
• Media Type: D
• Archive: Yes

Oxbow Mining LLC
Elk Creek Mine
Hole Number: GVB 17-01 B Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 19 -Oct -10 Date Completed: 21 -Oct -10
Contractor: Himes Drilling
Rig Type: Atlas Copco RD20
Geologist: Doug Allen
Date :
5 -Dec -10
Toolpusher: Matt Himes
Driller: Jim Weatherton
Truck Driver:
Kirk Homedew
Helper: Jake C.
Sam Homedew
Will Juusola
Trey H.
Coordinates: N. 18347.92
E.
33162.48
Location: Township, Range & Section:
SE 1/4, Sec. 36, T. 12 S., R. 91 W.
Ground Elevation: 8088'
Collar Elevation:
Geophysical Log Measured From:
ground
Elevation
Total Depth: 2180'
Probe Depth:
2063'
Fluid Level: NA
Casing Type: steel T&C
Size:
9 5/8"
Casing Type: sol/slot steel T&C
Size:
7"
Depth: 0-2092'
Recovered (Y or N):
N
Depth: 2008-2180'
Recovered (Y or N):
N
Bit Information
Surface Casing 16" Tricone to 20' (14"
surface casing)
Main Hole 121/4" PDC from 20-2092'
Core:
Bottom Hole 8 3/4" Tricone from 2092-2180'
Footage Plugged: 0-2180' Cored: NA
Drilling Medium: Air: Foam /Water: Mud: Foam Injection:
Depths: 0-600' 600-2180'
Lost Circulation Depths: NA Regained ? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: NA
Geophysical Logging Contractor: Jetwest Geophysical
Logs Run: Gamma: Y Neutron:
Temperature: Density: Y
Resistivity: Y Caliper: Y
Other (SP, Foc. Elec., Drift, Dep., Sonic): optical borehole imager
Hole Cemented (Y or N ), Type:
Coal Core Sent To: NA
N
No. of Bags:
Interval:
Rock Sent To: NA
Comments: 7" casing overlaps 84' inside 9 5/8" casing,
9 5/8" annulus cemented with 6 yds neat cement slurry.
Hole not drilled/logged through seam due to close proximity of GVB 17-01 A.
Optical borehole imager (fracture loa) run to 518' before cuttings/ foam clouded imaae.
9 5/8" casing abandoned to surface with 50 cubic yards portland cement slurry June, 2012.
Himes Drilling Colorado water well license #1285