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Log ASCII standard

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This is an old revision of this page, as edited by 180.181.125.79 (talk) at 23:18, 22 December 2014 (Add refs to water industry and explain "curve". And remove redundant CWLS link and fix main CWLS link.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Log ASCII Standard (LAS) is a standard file-format common in the oil-and-gas and water well industries to store well log information. Well logging is used to investigate and characterize the subsurface stratigraphy in a well.

A single LAS file can only contain data for one well, but it can contain any number datasets (called "curves") from that well. Common curves found in a LAS file may include natural gamma, travel time, or resistivity logs.

Restrictions of the LAS format mean that all the data must be saved in the same sampling interval. This usually is not an issue with most log curves.

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