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Introduction
Units of Measurement
Common Minerals and Metals
Useful Conversion Factors
Useful Formulas
Capacity Tables
Hole Capacity
Drill Pipe Capacity and Displacement
API Casing and Liner Capacity and Displacement
Annular Capacity
Annular Velocity
Single Salt Fluid Composition and Blending Tables
Ammonium Chloride Composition and Blending Tables
Potassium Chloride Composition and Blending Tables
Sodium Chloride Composition and Blending Tables
Sodium Formate Composition and Blending Tables
Potassium Formate Composition and Blending Tables
Sodium Bromide Composition and Blending Tables
Calcium Chloride Composition and Blending Tables
Calcium Bromide Composition and Blending Tables
Units of Measurement

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TABLE 13. Units of Measurement - Symbols and Abbreviations

Standard Oilfield Measurements and Abbreviations
Used in this Guide
Measurement Symbol Solutions Guide Other
Capacity (hole, casing, pipe, annulus) C bbl/ft
Density, (SI) kilograms per cubic meter d kg/m3  
Density, pounds per gallon d lb/gal ppg
Diameter, inside ID in  
Diameter, outside OD in  
Fluid displacement (hole, casing, pipe, annulus) Dis ft/bbl  
Force, pounds f lb lbf
Length, feet h ft  
Pi (π), unitless   3.1416  
Pressure, pounds per square inch P lb/in2, psi  
Specific Gravity, unitless SG SG sg, Sp Gr
Velocity, feet per minute Vel ft/min  
Volume, barrels v bbl  
Volume, cubic feet v ft3 cu. ft.
Volume, cubic inches v in3 cu. in.
Volume, U.S. gallons v gal

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