Using Crawler Technology For Detecting Pipeline Defects

Confined space inspection is being revolutionised through the use of robotics, with equipment such as our custom Crawler offering advantages such as rapid deployment, user-friendly operation and multiple configuration options.

The ability to locate and monitor pipeline defects in what are often hostile environments is crucial for both planned and emergency maintenance. Historically, such investigations have been hampered by lengthy preparation necessities and access challenges. But with the evolution of technology, such miniature pipe inspection systems are being embraced by industries such as the oil and gas, energy, nuclear, municipal and more.

The  Mark II UT is a miniature crawler system capable of inspecting pipe and ducts as small as 4in / 10cm in diameter. Just like the Versatrax 150, this crawler offers an in-line and parallel configuration for different pipe sizes. The  Mark II UT is extremely portable – the entire system fits into two Pelican cases (including the tether cable and hand reel). Despite its compact size, this system has the power to penetrate up to 600ft / 180m of pipe and overcome obstacles and offset joints. All Nexxis units are easily configurable for round pipe or flat surface operation. The vehicles are adjustable for a range of pipe diameters.

Key applications of the  MKII UTCrawler

As pipelines age, it’s inevitable that defects will occur. Being able to accurately determine the integrity of such structures on a regular basis not only lessens the chance of unexpected repairs, it actively extends their longevity. This is thanks to areas of concern being proactively monitored and planned repair or replacement carried out in a timely manner.

The MK11 Crawler provides an effective method of NDT testing in the smallest of pipelines, offering a multitude of configurations that can tackle virtually any confined space application. The system can easily be primed for inspections such as:

• Inline or small diameters
• Parallel configuration for larger diameter pipes and ductwork
• With magnetic attachment for inverted and vertical travel
• Within hulls and tanks
• Low profile requirements
• Pre-start-up inspections
• Subsea (to 60m/200ft)

Benefits and advantages

The advanced crawler can operate in pipes as small as 100 mm/4 inches and its modular system allows for the camera to be connected directly to the tether or operated as a standalone drop camera. Other benefits include:

• Completely portable and quick setup makes for rapid deployment – vital in any emergency situation
• Front and rear-facing cameras
• Intuitive functions
• User-friendly making it a quick system for operators to learn and effectively use

In addition to the high-definition remote visual inspection operation of the crawler, users also benefit from the ability to carry out ultrasonic testing with a further configuration option. These dual methods simplify the process of easily collating repeatable and meaningful data, providing essential information in the ongoing task of asset inspection.

The rugged construction of the  MK11 UTCrawler makes it the ideal workhorse for the early discovery and monitoring of defects such as dents, pitting, weld fatigue, stress corrosion and microbial-induced corrosion.

The  Mark II UT is a miniature crawler system capable of inspecting pipe and ducts as small as 4in / 10cm in diameter. Just like the Versatrax 150, this crawler offers an in-line and parallel configuration for different pipe sizes. The  Mark II UT is extremely portable – the entire system fits into two Pelican cases (including the tether cable and hand reel). Despite its compact size, this system has the power to penetrate up to 600ft / 180m of pipe and overcome obstacles and offset joints. All Versatrax units are easily configurable for round pipe or flat surface operation. The vehicles are adjustable for a range of pipe diameters.

As technology advances so too do the provision of such NDT accoutrements. Solutions-focus equipment provider, Nexxis, is committed to working with customers to best utilise such advanced commodities. Our intimate industry knowledge brings users together with cutting edge tools that address industry challenges, such as long periods of downtime and user safety. This creates a strategic and proactive approach to the inspection process that dramatically reduces the likelihood of such expensive occurrences.

To find out how this innovative approach can reduce the overheads and increase productivity for your business, talk to their professional team on 08 9418 4952