Northwind Resources · Kestrel 14-2H · Ash Draw, Loving County, Texas · March 4, 2026. Every figure below is computed live by the same code a real job runs through — on a well and an operator that do not exist.
Turn spinner revolutions into a real rate.
Most logs give you a share. This gives you a rate.
A spinner measures its speed relative to the fluid, and the tool is moving — so passes at different line speeds fall on a line whose slope is the tool’s constant. The gap between the two branches is bearing friction, the reason a spinner can sit dead through a live zone.
Response
14.05 ft/min per rps
Constant
0.0712 rps per ft/min
Threshold
±13.7 ft/min
Fit
r² 1.000 · 5 passes
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