AS ISO 13503.1:2024 identically adopts and modifies ISO 13503 1:2011, which provides consistent methodology for determining the viscosity of completion fluids used in the petroleum and natural gas industries
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Terms and definitions
3 Measurement and precision
4 Fluid preparation
5 Fluid preparation using shear-history simulation (optional)
5.1 General
5.2 Requirements for proper shear-history simulation
5.3 Conditions for sample delivery
5.4 Conditions for standard shear-history simulation
5.5 Operational considerations
6 Instrument calibration
7 Measurement procedures
7.1 General
7.2 Non-crosslinked fluids (see 2.6)
7.2.1 General
7.2.2 Apparatus
7.2.2.1
7.2.2.1.1 Calibration
7.2.2.1.2 Operation
7.2.2.1.2.1 Preparation
7.2.2.1.2.2 Procedure
7.2.2.1.3 Calculations
7.2.2.2
7.2.2.2.1 Calibration
7.2.2.2.2 Operation
7.2.2.2.2.1 Instrument preparation
7.2.2.2.2.2 Procedure
7.2.2.2.3 Calculations
7.3 Crosslinked polymer and surfactant fluids
7.3.1 General
7.3.2 Apparatus
7.3.2.1
7.3.2.1.1 Calibration
7.3.2.1.2 Operation
7.3.2.1.2.1 Preparation
7.3.2.1.2.2 Procedure
7.3.2.1.3 Calculations
8 Calculation procedures
8.1 General concepts
8.2 Brief review of geometry-independent rheology versus nominal rheology
8.2.1
8.2.2
8.2.3
8.3 Limitations/problems that can produce erroneous results
8.4 Calculation method for concentric-cylinder viscometers
8.4.1 General
8.4.2 Calculation of shear stress from torque values
8.4.3 Nominal shear rate from angular velocity
8.4.4 Consistency index calculation
8.4.5 Fluid consistency index calculation
8.5 Calculations for optional shear-history simulation
