DHSA – Drill hole spacing analysis (EMEA) | Training course
Master the concepts and practice of drill hole spacing analysis to understand the uncertainties associated with mesh spacing.
Objectives
- Learn how to use geostatistical simulations to quantify the uncertainty of grade modelling as a function of drillhole spacing, related to recovery-dilution
- Determine an acceptable drilling mesh based on its uncertainty and the associated production volume, using Isatis.neo
Application domain
To optimize spacing of production drillholes based on mining recovery-dilution control.
Who should attend
This course is aimed at professionals who want to understand the theoretical and practical aspects of drilling spacing based on grade uncertainty.
Course content
Theory
– Review of Turning Bands Simulation (TBS).
– Principles of DHSA.
– Recovery versus dilution: evolution of uncertainty as a function of drillhole spacing.
– An introduction to the panel as a production domain.
Practice in Isatis.neo
– Review of kriging and its smoothness properties.
– Review of TBS and scenario reduction.
– Overview of the DHSA workflow.
– Defining the production period and calculating associated uncertainties.
– Optimizing the Grade Control hole density for improved mining recovery and dilution control.
– Optimizing drillhole spacing.
Training material
- Theory: slides will be provided.
- Practice: a training license of Isatis.neo Mining Edition geostatistical software will be attributed to the participants, as well as a typical mining dataset.
Prerequisites
- Familiarity with linear geostatistics, including the variogram and kriging methods, is highly recommended.
- Knowledge of Turning Bands Simulation (TBS) would be appreciated.
Training – Registration policy
Qualiopi label, a guarantee of the quality of our training
Our training courses are Qualiopi certified. That means that they comply with a unique French national quality reference system. This recognition guarantees the quality of the training courses we deliver and allows our trainees to be eligible for various French funding.
Registration Fee
Class fees include one set of course materials and one full Isatis license valid for one month.
Attendees are invited to use their own laptop for computer exercises. A temporary demo version of the software package(s) used for this purpose (i.e. Isatis, Isatis.neo or Kartotrak) will be freely supplied by Geovariances.
For courses to be held in Geovariances only, if you are unable to bring your own laptop during the training session, be sure to inform your sales contact and Geovariances will endeavour to provide you with a computer for the session duration.
Please note that admission will be only confirmed on receipt of your formal purchase order and after full payment.
Payment
Geovariances will invoice your company for the approved course cost amount in full unless cancellation notice has been given 10 working days before the course date.
Payment is required prior to the course to confirm the registration.
Payment options: credit card (American Express is not accepted – please provide with your card details) or wire transfer to BRED Fontainebleau HDV – IBAN number: FR76 1010 7003 2700 0302 7055 623.
Venue
Courses can be organized in or outside Geovariances premises (hotel, client premises). Please refer to the course description for more details.
Training hours are from 9:00 am to 5:00 p.m. unless otherwise specified.
Accomodation
Fee does not cover hotel accommodation. Attendees should make their own reservations directly.
Cancellation
No refund will be made for cancellation notified by a registered participant to Geovariances within 2 weeks (10 working days) prior to the course or for ’no shows’.
Attendee can be substituted.
Geovariances reserves the right to cancel a session if the minimum number of registrations is not reached and to schedule an additional session if the number of registrations is in excess of the maximum number of attendees.
Queries
Should you have any question or need further information, do not hesitate to contact us.