Bore-hole logging – (see also: well logging) a form of logging which is practiced after the excavation of a hole to help determine geological properties


Caliper logging – used to analyse the diameter of a hole


Cased logging – utilised infrequently, this is a return to a previously excavated area for additional info


Chale – a material found near the sea


Conrad Schlumberger – the pioneering name in innovating resistivity throughout the world


Coringthe extraction of the rock itself from the area


Crystal – a highly-desired mineral


Density logging – the process of constantly radiating a large area to help understand its properties


Drilling – making a hole usually with a tool that rotates in a circular motion


Electrical logs – a form of logging which uses conductivity to determine possible masses of ore


Gamma ray logging – the utilisation of radiation to determine a mass below-ground; needs to be in close proximity


Gas – a matter that can be release after extensive logging


Geologgingblanket term for logging below the Earth’s surface


Gas logging – the process of determining gas in a subject area


Image log – measures the acoustic impedance of a borehole wall


Logging – the best way of finding out the properties of underground materials


Minerals – found underground, these are potentially the most desirable materials on our planet


Mudlogging – the research of mud by sending test data down before collating it and returning it to the surface


Nuclear magnetic resonance – highly-advanced, this analyses the integrity of boreholes


Oil – precious material that is common below the surface of mineral beds


Open-hole logging – typically performed on a well before it is established as a man-made structure


Porosity – the extent of pores present in rocks


Porosity logs – process of determining porosity in a subject


Quartz – a highly sought after mineral found after logging


Resistivity – the process of determining how reactive a mineral is to electricity


Seismology – the study of the potential of earthquakes


Slimhole logging – the process of logging in a compacted area


Sonic logging – measures depth of a hole by how long a sound wave takes to reach its destination


Well logging one of the most popular techniques, this is used to analyse the capacity of a well and its properties


Wireline logging – cabling that is lowered into a well to intervene in certain cases