ДСТУ EN 15112:2016 Зовнішній катодний захист обсадних труб (EN 15112:2006, IDT)

ДСТУ EN 15112:2016
(EN 15112:2006, IDT)

Зовнішній катодний захист обсадних труб

 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

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