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

Hole Number: GVB 16-01 D
Lease Number: COC -61357
Date Commenced: 23 -Nov -10
Contractor: Himes Drilling
Geologist: Doug Allen
Driller: Jim Weatherton
Sam Homedew
Oxbow Mining LLC
Elk Creek Mine
Project ID.: Elk Creek Mine Gob Vent Boreholes
(State or Federal) Surface Owner: Hotchkiss
Date Completed: 4 -Dec -10
Rig Type: Atlas Copco RD20
Date : 5 -Dec -10
Truck Driver: Kirk Homedew
Will Juusola
Toolpusher: Matt Himes
Helper: Richard M.
Trey H.
Coordinates: N. 17218.00 E.
33738.20
Location: Township, Range & Section:
SE 1/4, Sec. 31, T. 12 S., R. 90 W.
Ground Elevation: 8121' Collar Elevation:
Geophysical Log Measured From: ground
Elevation
Total Depth: 2252' Probe Depth:
NA Fluid Level: NA
Casing Type: steel T&C
Size: 9 5/8"
Casing Type: sol/slot steel TEC'
Size: 7"
Depth: 0-1292' Recovered (Y or N):
N
Depth: 1292-2252' Recovered (Y or N):
N
Bit Information
Surface Casing 16" Tricone to 21' (14" surface casing)
Main Hole 121/4" PDC from 21-1292'
Core:
Bottom Hole 8 3/4" Tricone from 1292-2252'
Footage Plugged: 0-2252' Cored: NA
Drilling Medium: Air: Foam /Water: Mud: Foam Injection:
Depths: 0-320' 320-2252'
Lost Circulation Depths: NA Regained ? (Y or N):
Water Invasion Depth or Intervals: Estimated Inflow Rates:
Gas Invasion Depth or Interval: 1292-2252'
Geophysical Logging Contractor: Directional hole- no logging
Logs Run: Gamma: Neutron:
Temperature: Density:
Resistivity: Caliper:
Other (SP, Foc. Elec., Drift, Dep., Sonic):
Hole Cemented (Y or N ), Type: Y No. of Bags: 3 yds for 9 5/8" annulus
Interval: to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: No 7" casing; left 8 3/4" hole open from 1292-2252', at estimated mine roof.
121/4" directional hole steered by Scientific Drilling from 320-1292' ( to point where angle fully built)
then motor tripped out to avoid sticking tools in broken gob. Bottom of 12 1/4" hole located ai
azimuth 101 degrees, 183' from surface location. No circulation loss during drilling.
9 5/8" casing abandoned to surface with 24 yds portland type II cement October, 2011.
Himes Drilling Colorado water well license #1285