English: A picture of a mud log in process. Mud logging is the process of recording the lithology a rotary drill penetrates, typically used in oil well drilling.
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(UTC) (Uploaded on Commons at 2011-03-20 18:02:27 (UTC)/Original uploaded at 2010-06-10 03:57:22)
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2010-06-10 03:57:22 Qfl247 2,048×1,536 (1.43 MB) ({{Information |Description = A picture of a [[mud log]] in process. [[Mudlogging]] is the process of recording the lithology a [[rotary drill]] penetrates, typically used in [[oil well]] drilling. |Source = I (~~~) created this work entirely)
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