We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
Two curves swapping order to flag a zone.
Also known as: Curve crossover well log, Shaded crossover zone
The well log convention in which two plotted curves cross and the area between them is shaded to flag a zone of interest.
Flags a zone of interest where two plotted curves cross on a well log.
Contexts: Technical drawing, Maps
Turns a comparison of two numbers into a shape, so a reader scanning metres of log sees a filled patch rather than reading values.
Contexts: Technical drawing, Maps
Two curves plotted on one track, with the area between them filled where one crosses the other.