Epiroc Kinetic Logging Services
Multi-Sensor Wireline Measurement Solutions and Petrophysical Applications in Mining
Historically, mine site borehole wireline-based measurements involve gamma ray, density, resistivity, and televiewer image measurements to identify boundary contacts, determine the water level and image structures such as fractures and faults. In recent years, the industry is progressing to more complex applications involving a multi-sensor wireline measurements approach. For example, pulsed neutron elemental spectroscopy and density measurements are used for accurate ore and deleterious elements characterization and reduce Selective Mining Unit (SMU). Nuclear Magnetic Resonance (NMR), magnetic susceptibility and televiewer image logs are used to accurately quantify porosity, moisture content and hydraulic conductivity sonic to optimize the process from mining to the product. Sonic, density, televiewer image and borehole seismic logs are evaluated to compute rock mechanical properties and fracture distribution for geotechnical and mine design decision making. Appropriate use of these interpretations and effective handling of significant volumes of current and historic log data can play a key role in improving timeliness of operational decision making, reducing cost, and enhancing safety through a reduced requirement for cored holes, manual sampling, lab assay testing and faster turnaround time of answer products.
Marcel Croon is the Principal Geophysicist at Epiroc Kinetic Logging Services. He holds a Ph.D. in geophysics and M.Sc. in geology and has over 15 years of experience in the mining and oil & gas industries. He specializes in downhole logging and seismic data processing, interpretation, and integration of data into solutions for mine planning, production, and geotechnical engineering.