Log ASCII standard
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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.
External links
- [http://www.cwls.org/products/#products-las Canadian Well Logging Society: LAS (Log ASCII Standard)], accessed 23 December 2014.
- [http://pubs.usgs.gov/of/2007/1142/ US Geological Survey: Log ASCII Standard (LAS) files for geophysical wireline well logs and their application to geologic cross sections through the central Appalachian basin], accessed 24 January 2009.
- [https://petroware.no/html/logio.html Log I/O] Java and .Net library for accessing LAS files and other common well log formats like DLIS, LIS, BIT, SPWLA and CSV
- [https://github.com/gpcarmo/cwls-las-reader Ruby LAS Reader] Ruby library for accessing LAS (Log ASCII Standard) files