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HDD Cost Model
The Kondex Difference
This app models drilling cost per foot by tying formation-specific fresh-tool Rate-of-Penetration (ROP) to nonlinear wear decay, then converts interval ROP into machine hours, trip hours, and total cost. The logic follows standard drilling definitions of ROP and cost-per-foot based on distance over active drilling time and total cost divided by drilled interval.
Variable inputs • base vs conservative case • exportable resultsProject inputs
Tool assumptions
Formation intervals
Incumbant avg ROP
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ft/hr
Apex avg ROP
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ft/hr
Incumbant cost/ft
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$/ft
Apex cost/ft
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$/ft
Incumbant margin/ft
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$/ft
Apex margin/ft
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$/ft
Cost summary
Savings
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Total modeled savings
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Savings per foot
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Incremental gross profit vs Incumbant
Decay Curves
Run-by-run details
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