CoalLog – The Australian Coal Logging Standard v2.0

Before CoalLog, approximately 30 different data formats and over 100 different data code translation tables were being used in the capture of geological and geotechnical data throughout the Australian Coal Industry. Additionally, each of the major Australian geological software companies uses different conventions for the transfer of data. These different formats, dictionaries, and transferral conventions, have led to major inefficiencies in the collection, transfer, and analysis of coal borehole data throughout Australia.

During the period 2010-2012, three sub-committees (geological, geotechnical, and data transfer) with representatives from most major Australian coal mining, consulting, and software companies developed 'CoalLog' which includes data entry sheets and standard code lookup tables for header, drilling, lithology and geotechnical data as well as a format for the transferal of this data.

This new Standard was completed and delivered to industry in February 2012 with financial support from ACARP. The original version was updated with v1.1 in September 2012, v1.2 in November 2013 and v2.0 in April 2015. Further improvement and development to the Standard is planned and feedback is welcome via

As well as minor updates to logging sheets and dictionaries, CoalLog v2.0 includes the new features of a Borehole Logging Training Manual, new logging sheets for recording Drilling data and standard plotting patterns for all Lithotypes and Lithology Qualifiers defined in CoalLog.

The New South Wales state government department responsible for archiving coal exploration data has decided to adopt the Standard and will be encouraging companies to provide their data in 'CoalLog' format. The 'CoalLog' Standard improves the efficiency of collection and transfer of Australian coal exploration data and provides a basis for easier data analysis and training.

File Description
CoalLog Manual.PDF Full colour copy of the complete CoalLog v1.1 manual
CoalLog Training Manual.PDF A comprehensive manual for reference and training of borehole logging geologists in all procedures for recording the geology and geotechnical aspects of coal boreholes
CoalLog Modifications.PDF A list of the v2.0, v1.2, and v1.1 modifications to the original CoalLog v1.0
CoalLog v2.0 Logging Sheets.ZIP Includes: Logging Sheet Specifications to assist database manager to set up the appropriate database tables, full Logging Sheets for tailoring, Recommended Logging Sheets to be used without any tailoring and an Excel data entry sheet for the Recommended Logging Sheets.
CoalLog v2.0 Dictionaries.ZIP Includes: Dictionaries Work File used for setting up and checking the standard; Dictionary in .DOC format for tailoring, .PDF format for immediate use and .CSV format for import into software; Stratigraphy and Seam Dictionary for Australian Coalfield Basins; full descriptions for each dictionary entry.
CoalLog v2.0 Drilling Sheet Example.PDF Example of how to fill out the new Drilling Sheet.
CoalLog v2.0 Lithology and Lithology Qualifier Patterns.PDF List of Patterns for CoalLog Lithotypes and Lithological Qualifiers.
CoalLog v2.0 Lithology and Lithology Qualifier Patterns in various graphical formats.ZIP All Patterns in the following formats: BMP, DXF, EPS, GIF, HP-GL2, JPEG, PDF, SVG, TIFF and WMF. 
CoalLog v2.0 Test Data.ZIP Test data for each Logging sheet in CoalLog transfer format.