2010-12-17_REVISION - C1981019 ‎(83)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 12/17/2010
• Doc Name: Exhibit 6 Item 10 Cross-Section B-B Drill Holes
• Type & Sequence: PR3
• Media Type: D
• Archive: No

DRILL HOLE INFORMATION FORM
Kennecott Energy - Colowyo Mine
•
Project: Collom
Logging Company: Century Geophysical
Logger Name: Robert Sipes Probe Depth:784.6 11
Hole ID:
C-04-26
Colowyo Project Manager:
Juan Garcia
Hole Type (pilot, spot core, full core, well, geotech, etc.):
Geotech
Geologist (Company):
Steve Sturm
Date Hole Started
10
Date Hole Finished
11/11/2004
Easting: 1330353.31
Northing:
347679 43
Ground Elevation:
7690.13 TD:
785
Location (Otr /Qtr, Section,T & R):
SE NW Section 2
T3N R94W
Date Hole Plugged: 11/12/2004
Depth of Weathering:
27'
County and Slate
Moff Colo rado
Coordinate Type
Surveyed (y /n)
Groundwater
Static water Level (Log): 270'
Inflow (depth & production estimates):
Drilling:
Wireline
Drilling Company:
Himes Drilling
Rig Type:
Longyear 44
Driller:
Distel/Thompson
Surface Casing Type & Size:
HW,4 1/2 OD .................
Interval Depths:
0 -24
Other Casing Runs:
Interval Depths
Casing Recovered (y /n): .....................................
...............................
Drilling Methods:
Hole & Core
Rotary or Core
From
To
Diameter
Bit Type
Ream Interval
..............
...........
0
_._,..,.,.
26
....... ... 51/2
_.__ ,., ,,.......
.Rotary .................
Core
26
785
3.98 Hole
Diamond
2.5 Core
Core
Drilling Medium:
From To Medium and Additives:
0 785 Mud /quick gel,Soda Ash, Dris -Pac
Circulation &Hole Problems (depth lost, regained, etc.): Lost circulation at 244 Never regained circu 400 to TD
Experienced severe rod chatter reauinno exterior rod lubrication every 60' to
Logging:
Logging Company: Century Geophysical
Logger Name: Robert Sipes Probe Depth:784.6 11
Date Hole Logged: 11/11/2004
Logging Suite: Gamma res Density, Caliper, Temperature, Delta Temp
Digital Log Format
Other
__. _ .,....
Sampling & Testing
Sampling Information (cuttings frequency, spot coring, etc.):
.................
Coal Laboratory: SGS- Denver
..... .......
Overburden Laboratory:
Gas Testing:
Geomechanlcal Testing Call & Nicholas -Tucson
..,..
g ow
Hole Completion & Reclamation
Date Hole Plugged: 11/12/2004
Date Site Reclaimed:
Backfill Materials and Depths: 10 sacks Plug gel(1000 gallons), 7 sacks Bentonite chips, 2 sacks concrete
Number of bags used: 19 Hole Marking Information: Lathe C -04 -26
Surface Reclamation:
Groundwater
Static water Level (Log): 270'
Inflow (depth & production estimates):
Installation Details:
Completion_forrn_C- 04 -26. xis
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