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30 Σεπ 2016 · Pigging programs are the most common wax management strategy for in-field flowlines when a significant portion of the non-wellbore production flow path is subjected to wax deposition risk. Figure 1 and Table 1 depict some of the pig types and their respective purposes.
8 Δεκ 2020 · Get tips for optimizing weld repairs on in-service pipelines. Plus, learn how industry leader Enbridge significantly improved productivity by changing welding processes. Understanding safety risks. Welding in-service pipelines presents safety risks due to the oil or gas inside the pipe, making it critical to monitor safety.
12 Ιουν 2023 · By understanding the different pipeline types, following safety precautions, using the right tools and techniques, and adhering to codes and standards, pipeline welders can ensure the integrity and reliability of the pipelines they work on.
Pipe End Cleaning: Undesirable moisture, paint, primer, rust, oil, varnish, and other coatings must be removed by cleaning the pipeline ends. Note that, proper cleanliness prevents defect generation leading to rejected welds and costly repair.
Choosing the right product to prepare and clean the base material for welding — and following some key best practices — helps prolong product life, improve operator efficiency and benefit safety on the pipeline jobsite.
This paper presents a case study in which TWI's expertise in developing safe in-service welding procedures and phased array inspection methodology for welds were applied to an onshore pipeline in preparation for modification.
To begin the process, thoroughly clean the pipe area to be welded to remove rust, oil, or other contaminants. Then, position the electrode and establish an arc between the workpiece and the electrode.
