Production of Synthetic Carbonate Rocks Using Limestone Mining Waste: Mineralogical, Petrophysical and Geomechanical Characterization

Yago Ryan Pinheiro dos Santos, Igor Gomes (), Analice Lima, José Barbosa, Osvaldo Correia Filho, Antonio Celso Dantas Antonino, Daniel Duarte and Marcos Rodrigues
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Yago Ryan Pinheiro dos Santos: Centre for Technology and Geosciences, Department of Civil Engineering, Federal University of Pernambuco, 100 Arquitetura Ave., Recife 50670-901, Brazil
Igor Gomes: Centre for Technology and Geosciences, Department of Civil Engineering, Federal University of Pernambuco, 100 Arquitetura Ave., Recife 50670-901, Brazil
Analice Lima: Centre for Technology and Geosciences, Department of Civil Engineering, Federal University of Pernambuco, 100 Arquitetura Ave., Recife 50670-901, Brazil
José Barbosa: Centre for Technology and Geosciences, Department of Civil Engineering, Federal University of Pernambuco, 100 Arquitetura Ave., Recife 50670-901, Brazil
Osvaldo Correia Filho: Centre for Technology and Geosciences, Department of Civil Engineering, Federal University of Pernambuco, 100 Arquitetura Ave., Recife 50670-901, Brazil
Antonio Celso Dantas Antonino: Centre for Technology and Geosciences, Department of Civil Engineering, Federal University of Pernambuco, 100 Arquitetura Ave., Recife 50670-901, Brazil
Daniel Duarte: Centre for Technology and Geosciences, Department of Civil Engineering, Federal University of Pernambuco, 100 Arquitetura Ave., Recife 50670-901, Brazil
Marcos Rodrigues: Centre for Exact Sciences, Department of Petroleum Engineering, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil

Resources, 2024, vol. 13, issue 6, 1-21

Abstract: Carbonate rocks are important for the petroleum industry, as they contribute significantly to hydrocarbon reserves, although their analysis is complex due to the high cost of core sampling and their high heterogeneity; for this, synthetic rocks aim to provide relatively homogeneous samples with analogous characteristics to natural rocks. In this research, synthetic carbonate rocks were produced by mixing a fixed ratio between limestone powder, obtained from limestone mining waste, and epoxy resin as a cementing material, using compaction energy for consolidation. The work aimed to produce homogeneous samples with high strength, reproducing the intergranular pore system for future applications in rock–fluid interaction analysis. The characteristics and structure of the samples were investigated through X-ray computed microtomography, petrographic images, petrophysical, chemical and geomechanical tests. Results showed a direct increasing relationship between porosity and permeability and a tendency for mechanical strength (UCS) to decrease with increasing porosity. When compared with the natural carbonate rocks, these presented similarities in their mechanical properties and petrophysical measurements, showing that the methodology can be considered as an alternative for the obtention of a realistic material that can be used for future experiments regarding rock mechanics and rock–fluid interaction for prediction of carbonate rocks’ behavior.

Keywords: synthetic carbonate rocks; petrophysical characterization; geomechanical tests; limestone mining waste; X-ray computed microtomography; petrographic images; mineralogical analyses (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2024
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