Well logging, also known as borehole logging is the practice of making a detailed record (a well log) of the geologic formations penetrated by a borehole...

are compared side-by-side with stratigraphic logs. The gamma ray log, like other types of well logging, is done by lowering an instrument down the drill...

(most commonly drilling mud). Mud logging is usually performed by a third-party mud logging company. This provides well owners and producers with information...

sub-terrain. Products of wireline logging are wireline logs or well logs.: (Fig. 1. Ll1LOG) In the oil industry the logs are “a recording against depth of...

Sonic logging is a well logging tool that provides a formation’s interval transit time, designated as Δ t {\displaystyle {\Delta }t} , which is a measure...

Keystroke logging, often referred to as keylogging or keyboard capturing, is the action of recording (logging) the keys struck on a keyboard, typically...

is comparable; anecdotal evidence points towards 25% of logging being illegal. Illegal logging has detrimental impacts, including deforestation and, consequently...

and Well Log Analysts (SPWLA) is an organisation whose mission is to increase the awareness of petrophysics, formation evaluation, and well logging best...

Resistivity logging is a method of well logging that works by characterizing the rock or sediment in a borehole by measuring its electrical resistivity...

associated petroleum gas along with the oil. A well that is designed to produce only gas may be termed a gas well. Wells are created by drilling down into an oil...