NBN EN ISO 13503-3 : 2006 COR 2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
   3.1 Terms and definitions
   3.2 Symbols and abbreviated terms
4 Requirements
   4.1 Quality control instructions
   4.2 Records retention
5 Calibration of equipment
   5.1 General requirements
   5.2 Reagents and materials for calibration
   5.3 General requirements for calibration of particular
        apparatus
   5.4 Frequency of calibration verification
   5.5 Calibration verification
6 Density
   6.1 General
   6.2 Apparatus
   6.3 Density measurement by hydrometer
   6.4 Density correction to 21 degree C (70 degree F)
   6.5 Calculation of density in units other than kg/m[3]
   6.6 Calculation for pressure and temperature compensation
7 Crystallization temperature
   7.1 Principle
   7.2 Apparatus
   7.3 Determination of crystallization point
   7.4 Calculation of crystallization point
8 Brine clarity
   8.1 Principle
   8.2 Apparatus
   8.3 Determination of brine clarity
9 Solids evaluation by gravimetric procedures
   9.1 Principle
   9.2 Apparatus
   9.3 Preparation of glass-fibre filter disk
   9.4 Selection of sample volume
   9.5 Determination of total suspended solids
   9.6 Calculation of total suspended solids
   9.7 Calculation of precision and bias
   9.8 Determination of volatile and non-volatile solids
   9.9 Calculation of non-volatile and volatile solids
10 pH
   10.1 Principle
   10.2 Reagents and materials
   10.3 Apparatus
   10.4 Measurement of pH
   10.5 Precision statement
   10.6 Care of the electrode
11 Iron contamination
   11.1 Principle
   11.2 Reagents and materials
   11.3 Apparatus
   11.4 Preparation of colorimetric standards
   11.5 Measurement of iron contamination
   11.6 Precision statement
12 Daily completion fluid report
   12.1 Principle
   12.2 Well identification, geometry and zone data
   12.3 System properties
   12.4 Fluids accounting
   12.5 Cost accounting
   12.6 Daily commentary
   12.7 Vendor representative identification
Annex A (informative) Completion fluids report form
Annex B (informative) Gas hydrates
Annex C (informative) Buffering capacity of brines
Annex D (informative) Pressure crystallization of brines
Annex E (informative) Brine viscosity
Annex F (informative) Principle of corrosion testing
Bibliography

Covers the physical properties, potential contaminants and test procedures for heavy brine fluids manufactured for use in oil and gas well drilling, completion and workover fluids.