Estimativa e obtenção de modelos de distribuição espacial de espessura de camada de carvão – depósito de Sapopema, Paraná

Abstract

To carry out the process of estimating a deposit, it is necessary to integrate most areas of Geology. A case study project of a mineral coal deposit corresponding to the conclusion work of the Geology course was developed, with the objective of estimating the existing reserve. The deposit corresponds to a real scenario, with real geological data, located in the municipality of Sapopema - PR, whose database was provided by the company Carbonífera do Cambuí LTDA. The work presents since adaptation of the database, to develop it three variables were used: thickness of the coal layer; ash content (%) and sulfur content (%). The first step was the composition of the scenario, followed by exploratory data analysis, variography, geological modeling, estimation and cubing. The estimation method chosen to use in the development of this work is Ordinary Kriging, which was chosen due to its robustness, being widely used for the most diverse situations, using the structural information provided by the variogram model. To develop this work, Datamine's Studio RM software was used, and other complementary software, such as QGis and Excell. With the estimate made, the deposit was evaluated and the result was 98.615.403,69 tons of coal.