LOGGING SYSTEM COMPATIBILITY OVERVIEW: There are a number of mineral logging system and probe manufacturers worldwide. All manufacturers offer most main stream logging probes and have strengths in different areas. The issues for the logging contractors is...
Wireline Logging
Logging Operations: Logging Probe Stacks
LOGGING PROBE STACKS OVERVIEW: Cost pressures on the mining industry means contractors are always under pressure to come up with innovative solutions to reduce costs. Geophysical logging is a valued service for mining producing accurate and cost effective data for ore...
Natural (Total) Gamma Logging – Overview
NATURAL (TOTAL) GAMMA LOGGING - OVERVIEW GAMMA LOGGING APPLICATION: Measurement of the total naturally occurring gamma radiation. For the geological record the dominant contributors of gamma radiation are Potassium, Uranium and Thorium. It is the dominance of...
Nuclear Magnetic Resonance (NMR) – Near Surface Applications
<h4>Nuclear Magnetic Resonance NMR - Near Surface Applications</h4> A nuclear magnetic resonance (NMR) borehole logging technique has been developed for near surface mining, groundwater and environmental contamination projects. The NMR technique provides a...
Why use the services of a logging contractor?
<h4>Why use the services of a logging contractor?</h4> Geophysical borehole logging is a standard service in the mining, geotechnical, hydrogeological and environmental fields producing in situ physical rock properties rapidly and cost effectively. The...
Acoustic scanner (televiewer) versus 3 arm dipmeter
Borehole Imaging: Acoustic Scanner (Televiewers) versus 3 or 4 arm dipmeter. The acoustic scanner and 3 or 4 arm dipmeter probes have been used for coal exploration for a long time. It would be fair to say that the acoustic scanner has superseded the 3 or 4 arm...
Borehole Geophysics in Universities – Do we need more?
<h4>Borehole Geophysics in Universities</h4> Should more attention be given to borehole geophysics in undergraduate geology and/or geophysics courses? <h4>Borehole Geophysics</h4> Borehole Geophysics (also known as geophysical logging, downhole...
Managed Aquifer Recharge Schemes (MAR)
<h4>Managed Aquifer Recharge Schemes</h4> An interesting presentation at a recent groundwater forum showed the increasing popularity (in the arid conditions of South Australia – a necessity) of Managed Aquifer Recharge schemes. <h4>What is...
Deconvolution of gamma logs
Deconvolution of gamma logs Deconvolution is a common process in seismic process where the objective is to “sharpen” the seismic response at depth. The process is necessary as the earth through which the seismic source pulse travels is altered by the rocks which act...
Water Well Integrity & Compliance Testing using the Fullwave Sonic Geophysical Logging Method
The need for integrity and compliance testing of local water wells has been highlighted in a recent groundwater forums to halt the loss of a valuable resource whether through age of the well or poor installation procedures. <h4>What is the problem?</h4>...
Geophysical logging for soil moisture
<h4>Soil Moisture and Contaminant Plumes</h4> An interesting presentation at a recent groundwater forum emphasised the importance of soil moisture in the distribution of contaminant vapour plumes particularly TCE. <h4>Relevance to Adelaide...