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Capacity Upgrade

Increasing the capacity of a pipeline in the Offshore Pipeline industry will impact operating conditions such as flow, pressure, etc.. This being so, it is important to assess pipeline integrity, ensure the line is clean, and execute the modifications efficiently.

TDW provides a full suite of solutions for this process enabling operators to:

  • Comply with company and regulatory requirements.
  • Assess its integrity for the increased capacity.
  • Protect people, the environment, and communities throughout the project.
  • Reduce the risk of costly project delays and over-runs.

STEP 3 / VIEW SOLUTIONS

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Because pigs are easy to launch and retrieve, efficient, and effective, they are the preferred tools for a variety of pipeline maintenance and integrity activities related to capacity upgrades. For example, cleaning prior to a capacity upgrade or other change in service clears the pipeline of materials and debris that can cause corrosion or limit flow, preparing it for optimum productivity. Gauge pigging can help characterize defects and provide other essential information about current condition.

TDW can help Offshore Pipeline operators select and deploy the appropriate pig for the purpose, pipeline, and product. 

Pigs for cleaning:

  • OptionALL™ cleaning pig  Effective for cleaning, maintenance, batching, and displacement. Can be customized with attachments appropriate for clearing pipeline solids, including discs, cups, magnets, brushes, and blades.
  • VANTAGE® V cleaning pig  – Multi-use pig that can be equipped with brushes to remove hard, crust-like deposits, urethane blades for removing gummy deposits, scraper discs to clean both hard and soft deposits, and magnet kits to remove ferrous material.
  • PitBoss™ cleaning pig  – Designed to remove soft to medium-hard deposits from internal pits.
  • FJR/JRN cleaning pig  – Equipped with wire brushes and urethane cups to remove contaminants and deposits from pipelines.
  • VANTAGE®+ cleaning pig  – Multi-use pig that can remove hard internal pipe deposits such as mill scale, crust, and calcium deposits as well as thick, soft contaminants including sludge and mud.
  • REDSKIN™ foam pig – Available in five different configurations, including the REDSKIN RoughRider® pig for removing hard deposits.
  • WCK cleaning pig – Built to remove pipeline contaminants and deposits, with an outlet port at the pig’s front end to prevent loosened material from piling up. Available in a dual diameter model for cleaning multiple sizes of pipe in one run.
  • Pencil brush cleaning pig – Heavy-duty, aggressive, and effective at removing black powder and cleaning deposits from internal pits. Removable bypass plugs provide jetting action to improve cleaning effectiveness. 

Pigs for gauging deformation:

  • OptionALL™ SO-G gauging pig – Designed for pipelines from 4 inches through 14 inches. Available with multiple gauge plates, providing pipe clearance information in a single run.
  • VANTAGE® LV-G pig For pipelines 16 inches and larger. Combines the strength and durability of the steel-bodied VANTAGE V steel cleaning pig with our proven aluminum gauging discs.
  • Polly-G REDSKIN™ foam pig Available in medium- and high-density foam with aluminum gauging plate bolted on.
  • X-Pig® multi-purpose utility tool  Versatile, one-piece tool molded from our proprietary Formula SI™ urethane. Available with optional bolted-on gauging plate.

Pigs for liquids displacement:

  • UNISPHERE™ pig  – Heavy-duty inflatable sphere that remove liquid hydrocarbons and water from pipelines and piping systems.
  • OptionALL™ batching pig  Designed for light cleaning, line filling and dewatering, batch separation, and liquid removal.
  • VANTAGE® V batching pig Used for batching, displacing, and light cleaning.
  • X-Pig® multi-purpose utility tool  Flexible and versatile all-urethane pig that can negotiate tight pipeline turns. Appropriate for cleaning, batching, and displacement operations.
  • VANTAGE® + pig – Can be used for batching and displacement. Flexible in tight bend pipelines and can traverse a 20 percent reduction in interior pipe diameter.

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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TDW offers safe, proven hot tapping and plugging (HT&P) solutions for the Offshore Pipeline market.  When pipeline owners and operators need to expand their lines, make connections and/or tie-ins, launch new services, or upgrade their capacity, the TDW team of experienced technicians can help.

The HT&P process incorporates a high pressure pipeline fitting, valve, tapping machine and isolation equipment – all working together to provide a safe and proven isolation solution. Once the area of pipeline that requires work has been safely isolated and evacuated, the line modification can be performed. 

The full suite of isolation solutions offered by TDW plays a critical role in this process. The TDW STOPPLE® Train isolation system, for example, uses double block and bleed technology to help increase efficiency and safety during pipeline modification. The system – which is able to create a double block and bleed seal through a single fitting – reduces costs associated with fittings, valves, welding, and inspection services. The bleed port affixed on the line ensures that any product that bypasses the first seal is captured and evacuated through the bleed port, which creates a safe zone in high-consequence areas. 

Whether operators are purchasing equipment to perform their own HT&P jobs or turning to TDW to execute the service, they can rely on the TDW line of equipment and consumables. The Subsea 1200RC tapping machine, for example, is a topside-driven hot tap machine that can be safely operated down to a depth of 3,000 meters (9842.5 feet). The machine has proven to be a highly reliable shallow and deep-water solution.

TDW can also partner with operators before the work begins, providing consulting services to help them make optimum use of TDW products and services. TDW application engineers are recognized industry experts, ready to assist operators through each project phase – from start to finish.