During the pipeline pre-commissioning, there are a number of operation required, including filling, cleaning and gauging; hydrotesting; pipeline dewatering and drying. As with many other pipeline operation, we commonly use pigs as our tool of choice for achieving many of the goals for this stage.
Many of the pre-commissioning activities are necessary to ensure a newly laid pipeline is fully prepared for handover to its operator. Once a pipeline has been constructed the following tasks are undertaken to ensure suitability for use:
- Flooding with water to prepare for the hydrotest;
- Cleaning and gauging the line to remove debris and prove the line is within diameter tolerance and that no damage or buckling has occurred;
- Hydrotest to determine integrity of the pipeline;
- Pipeline dewatering after the successful hydrotest, given that water an lead to corrosion or hydrates, this task is critical and must be performed efficiently;
- Venting to a set pressure;
- Nitrogen filling or air purging;
- Gas or oil filling.
Any failure to perform these pre-commissioning tasks correctly can lead to problems later, so it is imperative that these tasks are all performed correctly.
We have a number of documents on our site that will give you a greater insight on Pipeline Flooding, Dewatering and Venting, and a number of publications, which will give a great insight on the knowledge that we have gained. To find out more about our approach to pigging, or to discuss your pipeline pigging project, please don’t hesitate to get in touch with us.
If you are looking for professional pipeline dewatering development or simulations, don’t settle for anyone less that Pipeline Research. We provide innovative solutions to pass the challenges faced by pipeline and pig users today. You can get in touch with us by using the contact form on our website or email us at firstname.lastname@example.org, or by phoning us directly on 0141 637 8093.