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Colorado Division of Minerals and Geology <br /> ----------------------------------------- <br /> ESTIMATING FORM - SEALING BOREHOLES <br /> Task #: 3 Prep. by: ACS Task Filename : M051-3 <br /> --------- --------- ------------- <br /> Date: 30-Jun-99 Permit #:M-99-O51 Mine: Rock School Lease Project <br /> --------- --------- -------------------------------------------------- <br /> Permit Action: New application <br /> ---------------------------------7-------------------------------------------- <br /> Task Description: Seal production wells <br /> -------------------------------- ------------------------------------------- <br /> UNIT COSTS <br /> Drill Water Flatbed Pickup Dozer <br /> Mobile Equipment: Rig Truck Truck Truck (Cat D7H) Last update:1997 (dozer) <br /> Ownership Cost/hr = $44.18 $10.39 $4.86 $2.40 $36.36 <br /> Operating Cost/hr = $38.55 $14.88 $7.79 $5.16 $45.14 <br /> Operator Cost/hr $22.95 $22.18 $22.35 $21.82 $23.12 <br /> Assistant Cost/hr = $22.06 $0.00. $0.00 $0.00 $0.00 <br /> ----------------------------------------------------------------------------------------------------- <br /> Total = $127.74 $47.45 $35.00 $29.38 $104.62 <br /> ------- ------- ------- ------- ------- <br /> Materials & Supplies: Description $/unit unit cf/unit <br /> -------------------- <br /> Portland Type II Cement $9.00 90# sack 3.00 <br /> Dry Granular Bentonite $6.00 100# sack 3.00 <br /> Surgel Abandonment Fluid $6.00 100# sack 3.00 <br /> Octo Plug $1,000.00 each NA <br /> Marker $2.00 each NA <br /> ------------------------------------------------------------------------------ <br /> ITEMIZED TASK BREAKDOWN AND ASSOCIATED COSTS <br /> BOREHOLE OR PROJECT I.D.: M-99-051 <br /> ------------------------------------------------------------------------------ <br /> Total Number of Holes: 6 No. Plugs/Hole: 1 Avg. unit volume (cf/lf) : 0.5053 <br /> Av. Depth per Hole (ft.): 2,000.00 Plug Ht. (ft.) : 865 Tot. cem. plug vol. (cf) : 2,622.38 <br /> Av. Diam, per Hole (in.): 9.63 Type of Casing: steel Remaining fill vol. (cf) : 3,440.93 <br /> Task Item Task Description Quantity Unit $/Unit Cost <br /> -------------------------- <br /> Drill Rig Pull tubing, plug holes 294.00 hour $127.74 $33,723.36 <br /> Water Truck Provide water for mixing cement 144.00 hour $47.45 $6,832.80 <br /> Flatbed Truck Haul materials and supplies 264.00 hour $35.00 $9,240.00 <br /> Pickup Truck <br /> Dozer <br /> Cement Plug lower 8001 & upper 65' 874.13 sack $9.00 $7,867.15 <br /> Bentonite <br /> Surgel * Fill between cement plugs 1,146.98 sack $6.00 $6,881.86 <br /> Octo-plug Cast iron bridge plug 6.00 ea. $1,000.00 $6,000.00 <br /> Marker <br /> Miscellaneous Dispose of pulled tubing 1.00 lump sum $27,108.00 $27,108.00 <br /> ---------------------------------- <br /> * Select either bentonite or surgel; not both. TOTAL DIRECT COST $97,653.17 <br /> sheet 1 of 1 <br />