well logging

A Dictionary of Earth Sciences | 1999 | 539 words | Copyright

well logging (wireline logging) The lowering of various sensors within an instrumental package (a sonde) down a borehole. The output of these instruments is then measured to produce a series to well logs as the sonde is wound back to the surface. A wide variety of instruments can be combined: caliper, electrical, radioactive, temperature, etc. The term ‘well logging’ is also used to refer to the recording of the nature of drill cuttings encountered during the drilling of the well. See also BOREHOLE LOGGING; and MUD LOG.

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AILSA ALLABY and MICHAEL ALLABY. "well logging." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "well logging." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-welllogging.html

AILSA ALLABY and MICHAEL ALLABY. "well logging." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-welllogging.html

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