Description
Requires Foundation, added to your cart automatically.
OreChaser-OP & OreChaser-UG are infill drilling plan optimizer and evaluator for open-pit and underground mines:
- Drillhole Submodule : Imports assays, attributes (categorical or continuous) and geological structures, including faults; Desurveys drillholes with choices of 5 desurvey algorithms; Composite and color-code drillholes by lithology, attributes or assays; Creates custom DDH attributes as input to subsequent block model interpolations; Creates planned drillholes for drilling planning.
- Compositing : Creates grade composites from drillholes as input to the Infill and Step-Out Optimizers and the Infill Evaluator; Creates structure composites from drillholes as input to the Step-Out Optimizer.
- Drillhole Planning : Manually creates planned drillholes incrementally in cross sections or 3D, subject to topography constraints; Creates gridded RC holes in batch mode, subject to topography and/or polygonal region constraint(s).
- Infill Drilling Plan Optimization : Given an existing block model, composites and resource classification criteria, it determines N-best infill drilling plans. For each plan, the computer calculates the positions and lengths of the required additional drillholes to maximize resource uplift while minimizing Kriging variances under a given drilling budget. Custom ore and waste classification criterions can be incorporated into the optimization process with user-defined formulae.
Choice of two search strategies: RocDP (Randomized Drilling Plane) strategy for targeted drilling and faster convergence and FRD (Fully Random Drilling) strategy for exhaustive search.
Option for using a fan-out hole configuration.
The Infill Optimizer offers both open-pit and underground modules, which are licensed separately. Drillholes can originate from topography (for open-pit mines) or mine accesses (for underground mines.
- Step-Out Drilling Plan Optimization : Given a grade composite, a topography, and a structure composite with structural azimuth, dip and confidence as well as an optional fault network, create s an optimal step-out drilling plan that maximizes discovery of probable mineralization beyond the known orebody envelope while minimizing drilling cost, by projecting extension targets along strike and dip from the mineralized cluster boundary in directions guided by the local structural orientation and optional faults.
- Drilling Plan Evaluation : Rapid evaluation of the impact of planned drillholes on the existing drilling program.
- Outputs the uplifted resource (ore tonnage and metal quantity) and cost of each planned drillhole.
- Drill Plan Comparison and Export : Plots tonnage vs. cost curve for each drilling plan to show the relationship between the uplifted tonnage and the expected drilling cost; Compares the tonnage vs. cost curves of different drill plans within a single graph; Exports chosen drill plans to CSV files for further processing and/or sharing.
