NS EN 15112 : 1ED 2006
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
EXTERNAL CATHODIC PROTECTION OF WELL CASINGS
28-05-2022
12-01-2013
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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