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In order to detect pipeline damage or weakness, pipes are regularly examined with inspection tools. As it travels through the pipeline, the inspection tool detects the present state of defects and potential hazardous areas. The results are recorded in an internal memory unit.
During that process, marker magnets serve as reference points, being detected by the in-line inspection tool for calibration purposes.


  • Reliable reference points also available for challenging environments (offshore services, mountainous terrain, shore areas, salt water)
  • Durable design for extended life cycle
  • Flattened shape to protect against accidental removal
Marker Magnets


The installation of marker magnets significantly reduces the cost and effort associated with benchmarking using above-ground marker (AGM) receivers. As AGMs, marker magnets are very effective in difficult driving/traffic conditions or when the inspection tool is traveling in the pipeline at a high speed. Since they are attached directly to the pipe, they require no maintenance or surveillance, which reduces the costs for inspections of long pipelines significantly. Furthermore, marker magnets remain in place upon survey completion and can be used for future inspections.


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At PETROTECH, we offer a wide range of products and services to help global oil and gas operators ensure the safety, longevity, and performance of their assets. Customers rely on our technology, expertise, and experience, as well as our commitment to inspection, data quality, and integrity management. They trust our skilled team to tackle even the most complex projects safely.


Our goal is to prepare the pipeline industry for future fuels like hydrogen, carbon dioxide, and ammonia. We offer a roadmap with practical processes for integrating these energy sources into the grid, ensuring operators have innovative and sustainable solutions. With our extensive experience in transporting various media, we provide expertise in assessing pipeline integrity for the benefit of your grid.


Our customers in the process industry understand the crucial importance of plant safety and efficiency. That's why they turn to PETROTECH to optimize the integrity and availability of their critical assets, such as storage tanks, piping, and pressure vessels. Additionally, our innovative retrofit-ready PETROTECH EMAT Flowmeter offers precise and stable flow measurement for liquid, gas, steam, and multiphase applications, even in challenging conditions.


We have extended our pipeline inspection expertise to the steel mill, integrating inspection systems into the manufacturing process to assess hot steel plates and pipes as they are produced.

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