Seam welded pipelines often contain mill defects in the seam that can lead to integrity issues, especially when combined with certain conditions such as pipe pressure cycles and low toughness material.
In the Gathering market, TDW offers a variety of solutions to detect, evaluate, and help mitigate these axial planar and crack-like defects. TDW services enable pipeline owners and operators to:
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Through advanced inline inspection (ILI) technology to detect and characterize axial planar and crack-like defects, TDW helps Gathering operators optimize the number of inspection runs and unnecessary excavations, saving time while lowering operational risks and costs.
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In the Gathering market, where pipeline shutdown often is not an option, TDW offers safe and efficient hot tapping and plugging (HT&P) solutions for a wide array of pipeline defects and maintenance challenges, from dents to corrosion to valve failure.
The HT&P process incorporates a high pressure pipeline fitting, valve, tapping machine, and isolation equipment – all working together to provide a safe and proven isolation solution. Once the area of pipeline that needs work has been safely isolated and evacuated, the line modification can be performed.
TDW isolation technology plays a critical role in this process and, combined with a temporary bypass, allows work to be performed without the need to stop product flow. The TDW STOPPLE® Train isolation system, for example, uses double block and bleed technology to help increase efficiency and safety during pipeline modification. This approach to line isolation, which only requires a single pipeline tap, reduces costs associated with fittings, valves, welding, and inspection services. The bleed port affixed on the line ensures that any product that bypasses the first seal is contained and evacuated through the bleed port, which helps operators better protect people and the environment.
Whether operators purchase equipment to perform their own HT&P jobs or turn to TDW to execute the service for them, they can rely on the company’s broad line of equipment and consumables. TDW application engineers are recognized industry experts, ready to assist operators through each project phase – from start to finish.