WellCAD Basics - Advanced Logic Technology

Lithology Log
Description:
APPENDIX A - 303
Lithology Logs (short: Litho Logs) have been designed to display information about
lithology, sedimentary structure etc. using box filling graphical patterns loaded from
user-defined libraries (refer to the LithCAD User’s Guide for details on how to
setup a library). Top and bottom contact styles can be assigned to each lithology
box. The same log type can be used to display non repeated (not box filling) symbols
in order to indicate lithology accessories, qualifiers etc..
For each data point of a Lithology Log a code is recorded that refers to a particular
graphical pattern in the attached library.
Often two or more lithology logs are superimposed to allow a complex lithology to
be displayed in a single track (e.g. dominant lithology and accessories).
Data Format:
Top Depth, Bottom Depth, Pattern Code, Hardness, Top
contact, Bottom contact
E.g.
Display Styles:
Repeated Pattern: A generic
cell is repeated until the box is
filled
Lithology Log with box filling repeated graphical pattern (left) and non-repeated symbol (right).
Non Repeated Pattern:
A single symbol is drawn
at each data point.