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2014

Majorowicz, J., Weides, S.

Fall 2011

Li, Yupeng

This dissertation proposes an improved facies modelling methodology that involves a new geological spatial characterization tool, a geological based spatial distance calculation, and a theoretically sound conditional probability calculation. The full set of bivariate probabilities are proposed...

Fall 2020

Cabral Pinto, Felipe

Multivariate techniques aim to integrate multiple variables and/or data in the same framework to improve uncertainty assessment in high resolution geostatistical models. The necessity to build models that better quantify the uncertainty with limited data that are often collected with different...

Fall 2014

Lillah, Maksuda

Considering nonstationary features in geostatistical modeling is important. Recent developments in nonlinear estimation provide a practical way to infuse geological realism into numerical modeling by incorporating complex spatial features. Second order nonstationarity when present must be...

Fall 2016

Vasylchuk, Yaroslav V.

Grade control establishes the final destinations for mined material (plant, stockpile, waste dump, etc.) at the time of mining. Correct decisions bring profit to a mining company while incorrect decisions bring losses. There are several potential sources of misclassification of mined material: i)...

Fall 2017

Hadavandsiri, Mostafa

Reservoir exploration and production are always conducted in presence of geological uncertainty that is an inevitable result of incomplete data and heterogeneity at all scales. Modeling subsurface geology based on limited data is subject to uncertainty and its accurate assessment plays a key role...

Spring 2014

Koushavand, Behrang

Open-pit mining is widely used to extract natural resources. Low cut-off grades and large operations can make open-pit mining profitable. An important challenge is to determine the optimum production schedule. Usually the goal is to maximize the net present value of the project while delivering...

Spring 2015

Barnett, Ryan M.

Evaluating the process performance of mining and petroleum operations requires numerical geological models of many related rock properties or variables. Taken together, they provide a characterization of the geologic deposit that forms the basis for engineering design and decision making. Complex...

Spring 2015

Silva, Diogo S F

The classification of mineral resources must follow standards that were created to regulate the public disclosure of projects assisting investors and their advisers in making investment decisions and preventing the publication of erroneous, misleading and fraudulent information. The definition of...

Spring 2020

Samson, Matthew

Mineral resource estimation is an integral part of making informed decisions while evaluating the feasibility of a mining operation. Geostatistical tools estimate geological and spatial features with the assumptions of first and second‑order stationarity. In the modelling process,...