API Gravity Correction to 60°F
Calculator uses V.S.V Rajan equation to approximate corrected API gravity for temperatures > 45°F. paper SPE-28944, J. Petroleum Tech., 1994.

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Fluid Level Calculation
1. Enter a number of good collars between time zero and fluid level signature.
2. Enter distance between collars in millimeters.
3. Enter distance to fluid level signature in millimeters.

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creativeGIS.com