Core Profiler

CSIRO ENERGY

Peter Dean BOHOGS November 2015

Acknowledgements

• ACARP • Anglo Coal Australia (HO, Callide, Dawson) • Glencore (Newlands) • Rio Tinto (Hunter Valley)

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Overview

• Introduction • CoreProfiler Tool • Building a depth scaled image • Logging core • Taking Measurements from core • Interoperability

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Section 1: Introduction

Motivation

Central to all geological characterization are observations made on drill core and chips. The quality and reliability of these observations are impeded by • inconsistencies of visual observations • the ability to efficiently reconcile

against photographic records

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Deliverables

Six month requirements gathering and analysis phase.

A software based toolkit that • Produces depth-calibrated digital images from typical handheld

photographs of drill core • Allows reconciliation of field observations with the depth-

calibrated images • Can use reference image collections to ensure consistency and

accuracy of observations – Image library containing field code metadata

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History

• CoreProfiler release 1.0 - ACARP C15037 –in 2007 – Team

– Project management – Renate Silwa – Software development – Peter Dean – Algorithm development– George Poropat

• CoreProfiler release 2.1.1 in 2013 – CoalLog support – Measure structure in oriented core – Stereonet support

• Commercialised in Dec 2015

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Section 3: Build Scaled Core Image

Import Core Photographs

• Consumer grade camera • Core Tray or split • Specify tray size • Pick tray corners

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Add Depth Controls

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Imported images

Define intervals • Sample • Core Block • Broken Core

Assign depth controls to core intervals

Use preview image to check and fine-tune depth controls

When you are happy with the image …

Export scaled image Scaled core images are ready to be displayed in

– wireline log interpretation software – mine modelling software

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Section 4: Logging

Overview Choose either geological or geotechnical logging sheet • Manually create core units from scaled

core • Automatically import core units from

field logging data Log sheets are customisable (Excel) • Support for CoalLog ‘out the box’

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Log Sheet (Geotechnical)

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Scaled core at different resolutions- navigation

Stereonet

LogSheet RMUs Defects CollarData JointSets

Define Rock Mass Units & Defects

Log Sheet (Geological)

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Image Reference Library

Define Lithological Core Units

Section 5: Taking Measurements

Measurements

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Core Units • RQD • F Freq

Defects • alpha/beta • Dip/ddn for oriented

core

Stereonet • Visualise joint sets • Joint set statistics

Section 6: Interoperability

Interoperability

• Scaled core images are exported in formats ready to be displayed in wireline log interpretation or mine modelling software

• Users define logging sheets and data look-up lists that ensure compatibility with mine site data conventions

• Field logging data can be imported for validation against images

• Users can build mine specific image reference libraries to classify rock types or geotechnical rock classes

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Demo Video

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CSIRO ENERGY Peter Dean CoreProfiler t +61 7 3327 4152 e peter.dean@csiro.au w www.csiro.au

CSIRO ENERGY

Thank you