Tag Archives: Subsea Pipelines

Are you Prepared for Subsea Pipeline Repair Emergencies?

Subsea Pipeline Repair - Hot Tapping 2016The global oil and gas industry is reliant on the long term dependability of pipelines. Rigid pipelines are vital to the safe and efficient transportation of hydrocarbons and as such failures within these pipelines can have huge environmental, safety and reputational implications. As the global demand for energy increases so too does the consequences of any potential pipeline failure. In order to facilitate the repair or maintenance of pipelines, operators can often encounter difficulties in isolating sections of their pipeline if appropriate valves are defective or absent from the line.

Join STATS Group in this informative webinar as we share how our range of DNV GL type approved isolation tools provide leak-tight double block and bleed isolation that enables safe and efficient repair of pressurised pipelines.

To learn more about double block and bleed isolation technology, read our Technical Paper: A Comparison of Double Block and Bleed Technologies

As market leaders in the supply of pipeline isolation, hot tapping and plugging services we couple our expertise with an extensive global track record. Our range of isolation plugs greatly reduce downtime, increase safety and maximise unplanned maintenance, providing a cost-effective solution to operators. Our isolation technology provides safe worksite conditions to allow the breaking of containment in compliance with subsea isolation guidelines. This enables pipeline repair and recommissioning in as short a time as possible, minimising environmental and commercial impact.
28in Flangeless Subsea Launcher COOEC (1)In addition, pipeline operators now require the peace of mind that, should a pipeline fail, their contingency plans and processes are fully established, qualified, and able to respond to any emergency scenario. Operators can reduce the out-of-service time of damaged pipelines by many months when they pre-invest in isolation technology which is maintained in a state-of-readiness, allowing a rapid emergency response.

Download our Technical Paper: Emergency Pipeline Repair Isolation Systems to find out how advancements in our isolation technology can enable the installation of fail-safe, double block and bleed isolation tools, even when an unpiggable midline defect exists.

The webinar will conclude with a case study highlighting a complex and challenging subsea isolation and repair of the Yacheng pipeline, situated in the South China Sea. This 780km 28” subsea gas export pipeline supplies gas to Hong Kong and had become damaged by an anchor. The critical importance of this pipeline meant that shutdown in production had to be kept as short as possible while the repair was completed.  

Isolation tools were used to enable the safe removal of the damaged section and recovery of both ends of the pipeline onto a pipelay vessel without allowing seawater ingress or depressurising the entire pipeline. The installation of isolation tools into the pipeline were used to isolate only the sections of pipeline being recovered to the surface.

The strategic use of the BISEP™ and Tecno Plug™ isolation tools ensured that the primary project objectives were successfully achieved. The pipeline was repaired safely and quickly without depressurising or flooding the entire pipeline and ensuring any seawater that entered the system was removed before the pipeline resumed operation.

Register now to take part in the full webinar and learn more about temporary isolation of damaged pressurised pipelines which facilitate the safe repair of subsea infrastructure in compliance with subsea isolation guidelines.

We hope you can join us for this webinar where we can answer all your questions first-hand in the live Q&A session.

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