This procedure gives minimum requirements for dewatering, cleaning, drying & preservation of pipelines. These activities are termed pre-commissioning & may be necessary to prevent unacceptable internal corrosion & fluid contamination during commissioning & operation of the pipeline.

Contents

1.0 INTRODUCTION

2.0 SCOPE

3.0 DISTRIBUTION, INTENDED USE & REGULATORY CONSIDERATIONS

4.0 DEFINITIONS

5.0 GENERAL DEFINITIONS

6.0 SPECIFIC DEFINITIONS

7.0 ABBREVIATIONS

8.0 ACTION ITEMS

9.0 CROSS-REFERENCES

10.0 GENERAL REQUIREMENTS

11.0 BASIC REQUIREMENTS

12.0 PRECOMMISSIONING PLAN

13.0 CHECKS & COMPLIANCE

14.0 PRECOMMISSIONING RECORDS & REPORTS

15.0 HEALTH, SAFETY & ENVIRONMENT EQUIPMENT

16.0 PRESSURE RETAINING EQUIPMENT

17.0 FILTERS, PUMPS & COMPRESSORS

18.0 TEMPORARY PIG TRAPS

19.0 WELDING OF TEMPORARY EQUIPMENT

20.0 FLEXIBLE HOSES

21.0 ELECTRICAL INSTALLATIONS

22.0 DIESEL ENGINES

23.0 TEST CABIN

24.0 INSTRUMENTATION

25.0 PIGGING REQUIREMENTS

26.0 PIG SELECTION

27.0 PLANNING PIGGING OPERATIONS

28.0 PIG TRAIN MONITORING

29.0 DISLODGING STUCK PIGS

30.0 PIGGING RECORDS

31.0 DEWATERING

32.0 DEWATERING RUNS

33.0 FIRST DEWATERING RUN

34.0 SECOND DEWATERING RUN

35.0 DEWATERING RECORDS