DNV—GL — PRE—COMMISSIONING OF SUBMARINE PIPELINES
|D O W N L O A D|
The pre-commissioning of the submarine pipelines is one of the most important and essential parts of the project. It is commonly made of several operations including flooding, cleaning, gauging, pressure test of the system, de-watering, drying and inerting. It should be noted, however, that some of the submarine pipelines do not require drying and inerting.
Most of the regulatory codes applicable to the submarine pipelines provide technical requirements to pressure testing and gauging of the pipelines. But this recommended practice specifically covers pre-commissioning operations taking into account the overall design and arrangements of the systems, planning and management activities, major functional requirements and also execution principles.
The objective of this volume is to give a good guidance on safe, effective and reliable design, planning and then execution of the above mentioned activities. The philosophy in this documents shall apply to both new and existing submarine pipeline systems. The content of the book does not address flexible pipeline systems, but flexible pipeline sections may actually be pre-commissioned with the rest of the system.
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