Log gas rate (log-log)

• The log scales tend to accentuate the problem, which may not be evident in Cartesian coordinates. The scale compression of large-time values accompanied by the scale expansion of low rates makes the problem more visible.
• A sharp decline on a log-log plot indicates a problem.

Reasons for inconsistencies:

• An abnormal decrease in the gas rate can indicate liquid loading.
• Often accompanied by the production of liquids.
• For additional information, see the WGR & water rate plot.