hasemmu.blogg.se - Surpac input data

#Surpac input data how to#
#Surpac input data update#
#Surpac input data software#
#Surpac input data trial#

Posted by Simon Kettle, GIS Consultant, Exprodat.

#Surpac input data update#

To work in the program it is necessary to create a database and update it during the unfolding of the process of exploitation. It is used for the design solutions of surface and underground exploitation, with the presentation of exploration works. The result is a structure map with values in true vertical depth since this process derived values directly from the Top Cretaceous and hence cannot account for dip within the stratigraphy. Surpac is a computer program widely used in the global mining practice. When comparing this calculated surface to the data used in a previous blog on Creating Block Diagrams I can see that it has created an accurate representation for the depth to the base Cretaceous. The output raster represents the depth to the Base Cretaceous from the Top Cretaceous

Raster calculator provides clear and easy to use options for conducting mathematical operations on raster datasets.

Calculating the depth to surface: To apply the math function to the newly created grids I opened used Raster Calculator Spatial Analyst > Map Algebra and ran the tool.

To help visualise the data I created contours lines to overlie the grids using the Spatial Analyst Contour tool.

This can be conducted by using the surface and interpolation tools in the Spatial Analyst toolbox. It is possible to calculate additional calibration derived from elevation values from specific locations such as outcrops, drill locations or picks for the input surfaces to produce a more accurate output surface. Note that if I wanted to find the depth to a surface using multiple isopachs then some additional processing would have been required to combine the isopach thickness values together. I used these to calculate the depth to the Base Cretaceous surface. In the following example I used two grids – one representing the depth of the Top Cretaceous (the first image) and the other the Cretaceous Isopach. In this example we are dealing with an offshore subsurface stratigraphy therefore depths are recorded as positive integers where depths are below sea level. MethodĬalculating the depth to a surface uses the following principle and requires a surface with a corresponding isopach.

#Surpac input data how to#

This blog demonstrates how to use mathematic functions in ArcGIS to create a grid representing the depth to a stratigraphic surface in the Viking Graben area of the UKCS ( see previous blog for data and area). Rowdy’s skills are in resource evaluation, geostatistics, training, mine geology, engineering, and surveying.Depth-to-surface maps can be derived from isopach (thickness) data, and are useful for visualising regional structural trends.

#Surpac input data software#

He has trained geologists, engineers, and surveyors in the use of Surpac Software at underground and open pit mines covering all major commodities. Rowdy holds degrees in Geology, Surveying and Engineering, and has worked as a mine geologist, engineer, and surveyor. Rowdy has more than 20 years’ worldwide experience in the mining industry, and four years’ experience working for a mining consultancy in the United States.

Rowdy is a geologist, engineer, and surveyor with postgraduate qualifications in geostatistics, and computing. Rowdy Bristol BSc (Construction Engineering), AAS (Land Surveying), MSc (Geological Engineering/Geostatistics), Post Grad Dip Computing

Reconciliation – using Surpac to validate a resource model against grade control data.

Risk and uncertainty – understanding the basics of simulation, and when it is useful.

Classification and reporting – understanding the Codes, using Surpac to assess and assign classification categories.

Post-processing – understanding change of support and recoverable resources.

Validation – using Surpac to validate a model against input data.

Estimation – understanding different techniques, using Surpac to perform estimates, optimising estimation metrics (eg.

Continuity – understanding and modelling variograms, using variogram maps to develop anisotropy ellipsoid parameters.

Statistics – understanding and reporting statistical parameters,topcutting.

Data preparation – compositing within domains, validating composites.

Geology and Domaining – geology of a real-life data set, basic wireframing techniques and validation, assigning domain codes to drillholes.

Data quality – using Surpac to perform validation checks on input data.

Introduction – flow of tasks, key Surpac concepts

#Surpac input data trial#

Optiro has developed add-on modules that will improve your efficiency and offer functionality beyond Surpac’s normal functionality.Īttendees will receive a FREE copy of the OREpack Declus Optimiser, and a 30-day FREE trial of any one of these OREpack modules for Surpac:

This course has been drawn from industry best practice and twenty years of estimation experience with Surpac.

These concepts are reinforced through a large number of practical activities, all of which involve using Surpac on a real-life data set. You will learn the key concepts related to the processes, from data collection and quality assurance through to classification. This practical 4-day Resource Evaluation with Surpac course uses a real-life data set to cover the resource evaluation cycle and its requirements.