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Spiral magnetic flux leakage inspection tool

In 2010, T.D. Williamson, Inc. (TDW) announced the debut of its patent pending Spiral Magnetic Flux Leakage (SMFL) inspection tool, the latest addition to its range of magnetic flux leakage inspection tools.    

According to TDW, combined MFL and TFI capabilities offer unprecedented detection capability. Whereas traditional axial MFL technology detects volumetric pipeline anomalies, general corrosion and wide circumferential flaws, the new SMFL tool makes it possible to detect long, narrow defects in a pipe body and in long seam welds. Transverse field inspection (TFI) tools are designed to detect general corrosion, as well as long and narrow metal loss features.    

“By combining the capabilities of the standard TFI tool with those of a conventional axial MFL system, the new SMFL tool fills a niche in the market for a system that combines inspection technologies,” said Enzo Dellesite, General Manager -  Middle East Operations for TDW.    “By doing so, operators can detect and characterize a much wider range of pipeline defects that simply was not possible until now,” he added.  

The high resolution SMFL tool offers a number of benefits.  For example, while TFI technology relies upon two magnetizers, the SMFL tool requires only one.  As a result, the SMFL tool can be paired with MFL technology without having to extend the length of the tool to accommodate it.  The ability to pair tools means that multiple datasets are generated in a single run.  

TDW uses these datasets by overlaying them, which greatly enhances characterization of anomalies that are revealed during an inspection run.     For example, recently TDW ran separate runs with each system in a 16-inch pipe with a .250 wall thickness.  While the axial MFL tool did not detect an external axial gouge, data generated by the SMFL tool revealed an external gouge measuring six inches long x .25-inch wide x 40% deep.  

With a sampling frequency of up to 750 samples per second, the SMFL tool has an operating pressure range of 300 to 2,000 psi (21 to 137.8 bar) and an in-line temperature range of 14 to 131°F (-10° to 55°C.)  It has a minimum bend radius of 1.5D and can travel at up to 8.3 ft/second, making it an extremely adaptable and efficient inspection system.  

The addition of the SMFL tool further extends TDW’s comprehensive pipeline inspection services, which features the recently launched 48-inch Gas Magnetic Flux Leakage (GMFL) inspection tool.  This tool operates at a steady speed in spite of variations in gas pressure that tend to cause other tools to stall and surge as they move through a gas line.   

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Research Offers Solutions For Oil And Mining Slurry Pipeline Challenges

In mining and oil sands, one of the biggest challenges faced by operators is dealing with slurries – complex mixtures of solids and liquids – which need to be sent via pipeline for processing, treatment and environmentally-safe disposal.

The way that fluid flows, influenced by factors such as rheology, velocity, temperature and pressure, can affect the size of the pipeline and the architecture of the system used to transport the ore and water slurry, or crude oil mixture running through it. The study of fluid mechanics is the specialty of the Saskatchewan Research Council’s (SRC) Pipe Flow Technology Centre, which has been working closely with oil and mining companies for more than 50 years, to engineer solutions to their slurry pipeline challenges. The 20,000-square-foot facility, owned and operated by SRC, features a series of pipe loops, tanks and mixers, all temperaturecontrolled to create the right environment to run experiments simulating real-world conditions.

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Heat And Pressure Drive New Interior Coating Designs

The growth of advanced production methods in the oil industry has meant a need for new approaches to many methods used for years. Steam-assisted extraction, high-pressure water injection, and other techniques being developed all the time are encouraging companies to find innovative ways to meet those new challenges.

One sector that has found itself on the receiving end of those changes is the coating industry. Virtually everything used for storage or movement of petroleum products is coated in some way to ensure safety and protection from corrosion and damage. With innovations on the production side have come changing needs and parameters for the coatings that oil and other products are exposed to in the production process.

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Canadian Operator Successfully Moves Gas Pipeline

Rerouting a section of a natural gas pipeline is always a complex project. But one of Canada’s largest pipeline companies found the endeavour even more challenging when it was mandated to relocate a pipeline in an environmentally and politically sensitive area on a tight timetable.

The section that required relocation is part of the major 30-inch natural gas corridor that traverses west to east across Canada, delivering energy to one-third of the nation’s population. The area around the pipeline was issued a safety-class upgrade by the National Energy Board (NEB) when construction of a subdivision began near the pipeline. Because it was determined that the new residences would be too close to the pipeline to comply with safety standards outlined by the Canadian Standards Association, the pipeline operator chose to cut out a 900-foot section of the pipeline and build a new section farther from the new residential development. In order to maintain gas flow to customers, the pipeline was isolated upstream from the construction area and rerouted through a bypass line.

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Emergency Repair System Advances Reduce Time, Costs

In the wake of four major pipeline accidents in June, emergency preparedness is taking centre stage. With a leaking oil pipeline igniting a huge blaze in China, and pipelines exploding in Malaysia, Ukraine, and India, where 16 people were killed, operators of these and other pipelines are taking a hard look at how vulnerable their assets are to thirdparty threats. They are also evaluating whether they are prepared to respond rapidly with a repair solution, should disaster strike their critical lines.

IRM Systems notes that these incidents are a dramatic reminder of the random threats that can affect pipelines, and the urgency of having an Emergency Pipeline Repair System (EPRS) in place. “Operators must have an EPRS that offers the shortest possible time between the incident and re-commissioning. They must also achieve the highest possible level of post-repair integrity, at the lowest possible cost,” said Rutger Schouten, general manager of IRM Systems.

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Registry Services Aid In Reduction Of Reference Errors For Pipelines

Registry web services have proven to be a valuable resource for access to Coordinate Reference Systems (CRS) and associated units of measure, for exploration companies. While there are no statistics, it is quite likely that such systems have saved significant dollars through the reduction of errors in CRS parameters and hence in the placement of drilling rigs and bore holes.

Registry services offer global access to the CRS information that can be immediately and automatically consumed by tools like Blue Marble’s Geographic Calculator and ESRI ArcGIS Server.

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Pipeline Support Method Offers Added Integrity Protection

With a growing emphasis on pipeline integrity, engineers and designers are looking for the best, safest and most economical ways to build and protect their pipelines. Even with tough, modern pipeline coatings, additional protection is often necessary. A pipeline’s safety and long-term integrity depends on it.

Historically, additional external pipe protection has been achieved through adding either a layer of sand or select backfill above and below the pipeline (sand padding) or by covering the pipe with a high-impact-resistant, poly-type rock shield just prior to installing.

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DUOLINE D-350, For HIGH Temperature Applications

DUOLINE API And Premium Connection Comparison
DUOLINE API And Premium Connection Comparison

DUOLINE Technologies, a global leader in fiberglass internal lining systems for protecting oilfield tubulars, introduced the D-350 product line in 2012. D- 350 provides reliable corrosion protection of steel tubulars with temperature resistance up to 350°F/177°C. D-350 is installable with most API & Premium connections, ranging from sizes of 2-3/8” thru 13-3/8”.

DUOLINE D-350 may be installed in threaded oilfield tubular goods with nearly any connection option. There are a few general "rules of thumb" regarding connection and connection protection devices for DUOLINE.

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HDD Pipe Handling System

Vacuworx has launched a lightweight pipe handling system to lift and position drill stem in horizontal directional drilling operations.

The HDD Pipe Handling System utilizes a wireless remote controller operation and the latest vacuum-lifting technology to tilt and place drill stem at angles between 0 and 30 degrees without the use of ropes or slings. Suitable for use with Vacuworx MC Series Lifters, the HDD unit is significantly lighter-weight than competing technologies and requires only one worker to lift drill stem and transfer the pipe into a drilling rig, reducing exposure to risk of injury in a pipe yard or on a jobsite.

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ALLU Screener Crusher Bucket Improves Profitability In Pipeline Applications

The ALLU D-Series Screener Crusher Bucket attachment works with wheel loaders, excavators, skid steers or back hoes to screen, crush, pulverize, aerate, blend, mix, separate, feed and load materials all in one stage—increasing the profitability and efficiency of pipeline construction operations. It is an effective tool for pipeline padding and backfilling, because it allows material to be screened on site and then backfilled directly into a trench, eliminating the need for a dedicated stationary screening machine. The ALLU power adjustment valve promotes powerful startup and rotation allowing the attachment to efficiently screen and crush wet or dry material from 0.60-inch to 6-inch (15-mm to 150-mm) fragment sizes. Straight side plate construction makes the ALLU D-Series Screener Crusher Buckets easy to fill and able to hold a greater volume of material, while the standard power adjustment valve prevents overloads. Locating the hydraulics on the back of the attachment keeps them well protected from damage, while patented fender plates protect the bearings and seals. Its patented construction keeps nuts and bolts away from the material flow. ALLU D-Series Screener Crusher Bucket attachments are available in over 60 models to fit any excavator, wheel loader, skid steer or backhoe.

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PLM releases new 71H pipelayer.

PipeLine Machinery International has announced the release of the 71H pipelayer. With the support of Caterpillar and the engineering expertise of Vanguard Equipment Inc., the challenge was met to create a utility-capacity pipelayer in the Tier 4 Interim/EU Stage IIIB class, designed for lifting 27 215 kg (60,000 lb.) and engineered to meet the most exacting standards in the world.

Features include:

  • Standard electro-hydraulic tractor control, dedicated hydraulics, differential steering and machine control systems.
  • Boom and hook draw works are driven by independent hydraulic winches.
  • The compact design of the counterweight provides maximum lift capability and optimum weight distribution.
  • The drawbar is able to accommodate a wide range of attachments.
  •  Roll Over Protection Structure (ROPS) and Quick Drop function on load line control.
  • Heavy duty undercarriage.
  • Standard 600 mm (23.6 in.) single grouser shoe, LGP configuration.
  • Standard 6.1 m (20 ft.) boom with large box section.
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