DIN EN 15112 E : 2006
Current
The latest, up-to-date edition.
EXTERNAL CATHODIC PROTECTION OF WELL CASINGS
Hardcopy , PDF
English
01-01-2006
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Description and assessment of corrosion risks
4.1 General
4.2 Description of corrosion risks
4.3 Corrosion risk assessment
5 Prerequisites for application of cathodic protection
5.1 General
5.2 Electrical continuity
5.3 Electrical isolation
5.4 Cathodic protection equipment
5.5 Groundbed
5.6 Safety requirements
6 Design of the cathodic protection
6.1 General
6.2 Voltage drop profile method
6.3 Polarisation curve method
6.4 Mathematical approach based on a field test
6.5 Simulation of the cathodic protection for a well
7 Measurement of the well-casing-to-soil
potential at the wellhead
7.1 General
7.2 Measuring points
7.3 Method used for potential measurement
- Interpretation
8 Additional cathodic protection equipment
Annex A (normative) Voltage drop profile
Annex B (informative) Polarisation curve method
applied to a well
Annex C (informative) Determination by calculation of the
potential shift at the bottom of the well
and the well to soil resistance
Bibliography
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