DrillHoles.jl is a package written in Julia for drill holes desurvey and compositing.
First, it is necessary to install Julia. Installation instructions for Windows, Linux and macOS are available here.
DrillHoles.jl package: open a terminal, type
julia to open the REPL and then install the package with the following command. Additionally, the
GeoStats.jl package is also installed to run the example later.
using Pkg; Pkg.add("DrillHoles"); Pkg.add("GeoStats")
Drill hole tables
Before using the package, it is necessary to have a collar table, a survey table and at least one interval table (such as assay and lithology). They can be passed as CSV file or
DataFrame. Examples of data tables are shown below:
using DrillHoles # Inform drill hole tables and main columns collar = Collar(file="C:/collar.csv", holeid=:HOLEID, x=:X, y=:Y, z=:Z) survey = Survey(file="C:/survey.csv", holeid=:HOLEID, at=:AT, azm=:AZM, dip=:DIP) assay = Interval(file="C:/assay.csv", holeid=:HOLEID, from=:FROM, to=:TO) litho = Interval(file="C:/litho.csv", holeid=:HOLEID, from=:FROM, to=:TO) # Desurvey drill hole tables dh = drillhole(collar, survey, [assay, litho]) # The DrillHole object created have 4 components dh.table # the desurveyed drill hole table dh.trace # the trace file with coordinates at surveyed depths dh.pars # the main column names dh.warns # the table of warning and errors identified during desurvey # Composite drillhole using :equalcomp mode, which seeks to create composites # with the exact `interval` length; borders are discarded if have length below # `mincomp`. Max composite length = `interval` comps = composite(dh, interval=1.0, zone=:LITHO, mode=:equalcomp) # Composite drillhole using :equalcomp mode; composite lengths are defined # seeking to include all possible intervals with length above `mincomp`. # Max composite length = 1.5*`interval` comps = composite(dh, interval=1.0, zone=:LITHO, mode=:nodiscard) # To use the drill hole file as PointSet into GeoStats.jl framework using GeoStats pointset = georef(comps.table, (:X,:Y,:Z))
The documentation of the main functions are available as docstrings