Log ASCII standard


Log ASCII standard 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 from that well. Common curves found in a LAS file may include natural gamma, travel time, or resistivity logs.

Online LAS viewers

Several free web-based tools allow users to view and analyze LAS-formatted well-log files without installing specialized software:
These tools offer convenient, free access to essential well-log visualization features, making them useful for quick data checks and remote access.