Glossary

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