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 17-01C Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 23 -Oct -10 Date Completed: 27 -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: Richard M.
Sam Homedew
Trey H.
Matt Himes
Coordinates: N. 18200.13 E.
33793.52
Location: Township, Range & Section:
SW 1/4, Sec. 31, T. 12 S., R. 90 W.
Ground Elevation: 8152' Collar Elevation:
Geophysical Log Measured From: ground
Elevation
Total Depth: 2290' Probe Depth:
Fluid Level: NA
Casing Type: steel T&C
Size:
9 5/8"
Casing Type: sol/slot steel T&C
Size:
7"
Depth: 0-2182' Recovered (Y or N):
N
Depth: 2092-2256' Recovered (Y or N):
N
Bit Information
Surface Casing 16" Tricone to 20' (14" surface casing)
Main Hole 121/4" PDC from 20-2182'
Core:
Bottom Hole 8 3/4" Tricone from 2182-2290'
Footage Plugged: 0-2290' Cored: NA
Drilling Medium: Air: Foam /Water: Mud: Foam Injection:
Depths: 0-410' 410-2290'
Lost Circulation Depths: NA Regained 7 (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., SoniET cement dump bailer
Hole Cemented (Y or N ), Type: N No. of Bags:
Interval:
Coal Core Sent To: NA Rock Sent To: NA
Comments: 7" casing overlaps 90' inside 9 5/8" casing.
9 5/8" annulus cemented with 5 yds neat cement slurry.
Tagged gravel at 2256', set 7" into 9' wet cement plug to 2256' (3' above seam).
Optical borehole imager (fracture log) nun to 2144' before cuttings/ foam clouded image.
9 5/8" casing abandoned to surface with 24 cubic yards poMand cement slurry June, 2012.