Solutions Engine

Rupture

A pipeline rupture is a catastrophic incident requiring immediate repair. TDW offers a suite of solutions and technology to quickly isolate and facilitate repair of the rupture. 

The comprehensive technology from TDW enables Offshore Pipeline market operators to:

  • Quickly and safely mitigate risk to personnel and the environment.
  • Perform remediation safely while the line remains in service.
  • Restore the pipeline back to compliance with company, industry, and regulatory standards.
  • Save time and money through efficient technologies.
  • Avoid bleeding down the entire pipeline.

Additionally, a full line of TDW inline inspection tools provides thorough pipeline integrity evaluation for operators with previously ruptured or at-risk pipelines.

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For pipelines at risk for rupture, pigging assists Offshore Pipeline operators in finding defects and possible causes of rupture by cleaning the pipeline prior to evaluation with inline inspection tools. This helps improve data capture and produce the most accurate information about necessary repairs.

  • VANTAGE® V cleaning pig  – Multi-use pig designed to remove both hard, crust-like and soft, gummy deposits, as well as ferrous materials.
  • WCK cleaning pig  – Removes contaminants and deposits that increase resistance to flow.
  • REDSKIN™ foam pig  – Used for light cleaning; one version incorporates a urethane cleaning wrap with bypass grooves that effectively removes paraffin and other soft deposits that could lead to corrosion.
  • UNISPHERE™ pig – Provides heavy-duty removal of liquid hydrocarbons and water from pipelines and piping systems.

Technical assistance is available from TDW subject matter experts for special circumstances or if the path to a solution requires consultation.

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Through advanced inline inspection (ILI) technology to detect and characterize defects in pipelines at risk for rupture, TDW helps Offshore Pipeline operators avoid multiple inspection runs and unnecessary excavations, saving time while lowering operational risks and costs.

  • Multiple Dataset (MDS) platform – Combines multiple technologies to generate comprehensive, critical information in a single tool run. Technologies include SpirALL® MFL (SMFL), deformation (DEF), magnetic flux leakage (MFL), residual (RES) or low field MFL (LFM), and XYZ mapping (XYZ).  Comprehensive threat assessment includes the detection of metal loss, dents, hook cracks, lack of fusion, selective seam weld corrosion, axially extended metal loss, hard spots, including those with crack-like defects, and mechanical damage.
  • SpirALL® Electromagnetic Acoustic Transducer (EMAT) – A tool that optimizes the number of receivers and transmitters through the use of a helical magnetic field. This technology collects data related to axial cracking (i.e., stress corrosion cracking, hydrogen Induced corrosion, fatigue cracks, etc.) that are below the detectable limits of SpirALL MFL, as well as coating disbondment.
  • Magnetic flux leakage (MFL) – High-resolution technology that detects and sizes volumetric metal loss. Utilized primarily in small-diameter liquids pipelines.
  • Gas magnetic flux leakage (GMFL) – High-resolution technology used to detect and size volumetric metal loss. Utilized primarily in natural gas pipelines.
  • Deformation (DEF) – High-resolution geometry that detects the slightest bore changes for analysis of dents and dent strain, ovalities, girth weld misalignments, expansions, etc.
  • XYZ mapping (XYZ) – Supplies high-resolution pipeline mapping data for the calculation of bending strain and pipe displacement. Also provides highly accurate location information about every defect reported by pairing global positioning system (GPS) coordinates with inertial mapping.

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Because critical pipeline repairs often call for hot tapping and plugging (HT&P) solutions, TDW offers Emergency Pipeline Repair Systems (EPRS) that help pipeline owners and operators respond promptly to crisis situations while minimizing their risks and losses.

TDW partners with clients to develop an EPRS customized to their unique environments, products, and pipelines. The process begins with a thorough risk assessment and gap analysis that considers every aspect of their operation, from pipeline pressure to access to weather conditions. From there, TDW develops the resulting data into a custom emergency response plan.

Once the plan is in place, TDW gathers the necessary equipment, including tapping machines, high-pressure fittings, valves, and isolation systems. As long as the EPRS is active, TDW stores the supplies and keeps the equipment well maintained, up-to-date, and ready when needed.

The ability to take a proactive approach to emergency pipeline repair has proven highly valuable in the Offshore Pipeline market. A seemingly small leak or defect can easily escalate to a catastrophic situation that requires the immediate mobilization of critical materials, equipment, resources, and services.

Investing in an EPRS allows offshore pipeline owners and operators to deliver an appropriate response to emergency situations — from leaks to stuck pigs — in the shortest time possible. As a result, employees, the environment, and company assets are protected, and costly downtime is kept to a minimum.

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Non-intrusive inline isolation technology makes it possible for Offshore Pipeline operators to safely repair a rupture on a section of a high-pressure pipeline.

When included as part of an Emergency Pipeline Repair System (EPRS), non-intrusive inline isolation can be executed immediately after catastrophic damage, minimizing environmental and safety fallout, and assisting during the pipeline recovery process.

  • SmartPlug® isolation tool  – When included as part of an EPRS, double block and monitor SmartPlug isolation technology by TDW can isolate a ruptured pipeline segment immediately after the incident, minimizing fallout by sealing off the affected area. In non-emergency situations, SmartPlug minimizes platform downtime by eliminating or drastically reducing the need to blow down the pipeline segment during repair, minimizing the release of hydrocarbons. This system also makes it possible for hydrostatic testing to take place immediately after isolation, and is tracked, positioned, controlled, and monitored through the SmartTrack™ system.