Total measured length

Total measured length (TML) is the total length of a horizontal well from the surface datum to the toe. In general, it is referred to as measured depth (MD) and is determined ty the sum of lengths of individual joints of drill pipe, drill collars, and other drill-string components.

Simple vertical profile of a horizontal well, illustrating basic terms.

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See also

• Bend
• Build rate
• Extended-reach wells
• Geosteering
• Heel
• Kickoff point
• Lateral
• Logging while drilling
• Measurement while drilling
• Multilevel well
• Multilateral well
• Sidetrack
• Toe
• Horizontal well

External links

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measured depth