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...

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

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...

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...

one of three well logging tools that are commonly used to calculate porosity, the other two being sonic logging and neutron porosity logging The tool was...

neolithic era. The well was cased by four rows of logs with a square frame attached to them at the top of the well. 60 additional tile wells southwest of Beijing...