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Pipeline cathodic protection (CP) test stations

Acteon's cathodic protection CP test stations are the most cost-effective method for gathering accurate pipeline readings. There are options for buried and unburied subsea pipelines.

Options for surveying cathodic protection on buried and unburied pipelines with ROV or AUV.

The most common method of evaluating the cathodic protection of subsea pipelines is the three-electrode survey method, which has not proved very reliable in practice.

We developed a far more accurate and cost-effective survey method with its CP test stations. On unburied pipelines, RetroClamps™ fitted with special stab plates are attached around every 10 Km, allowing an ROV to take a stab reading of the pipeline’s real potential and not that of the anode’s. The clamp is electrically connected to the pipeline, and a freely-corroding “coupon” on it draws protection from the CP system. Stabbing the coupon yields an accurate potential reading without damaging the pipeline’s coating.

For buried pipelines, our RetroMat™ is used as a test station. The RetroMat, fitted with stab plates and coupons, is laid on the seabed and is electrically attached to the buried pipeline using a RetroClamp. CP readings can be easily taken from the mat’s stab surface by the ROV’s probe, resulting in far more accurate readings than the three-electrode method can provide.

Delivered by Deepwater

Deepwater is a global leader in subsea corrosion control for all asset types, including oil and gas platforms, coastal terminals and offshore wind turbines.

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Acteon can also offer an integrated project management service. This involves managing the activities of one or more of our companies on a customer’s behalf and providing a single point of contact for all aspects of project management.

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Structural health monitoring; visualising asset condition and providing remediation and life extension solutions.

Acteon’s asset integrity and monitoring solutions are designed to help our clients carry out diagnostic and remediation work including further monitoring/deep dive and the provision of proprietary retrofit cathodic protection CP packages suitable across a wide range of applications in marine energy and marine infrastructure markets.

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