Building a Pipeline and Maintaining Integrity
Building and operating safe and reliable energy infrastructure – it’s what we do. From design and construction to operations and maintenance, safety is our number one priority. It has been for over 65 years and it will continue to be with the Energy East Pipeline.
High Construction Standards
- Each weld is checked by x-ray or ultrasonic process to ensure it is sound.
- The surface of the pipeline is coated for protection. Where the pipeline has been welded, a liquid bond epoxy is applied to protect the weld.
- A very low voltage electrical current called cathodic protection is applied to help reduce wear and tear on the pipeline.
- Completed sections of pipeline are tested by filling them with water and pressurizing them to a level higher than the level the pipe will experience during normal operations.
- Energy East will be monitored 24/7 by highly-trained personnel from our Control Centre, which receives data every five seconds from thousands of sensors located all along the pipeline.
- We use shut off valves all along the pipeline. If data shows a drop in pressure or temperature inside the pipeline, the pumps that move the oil will be turned off and the valves remotely closed immediately, effectively shutting down the pipeline.
- Regular inspections of the pipeline route are performed by low-flying helicopters and airplanes. We also conduct ground patrols.
- Smart PIGs are used inside the pipeline to identify the tiniest crack, flaw or sign of corrosion thanks to electronic sensors that inspect every inch of the pipe metal.
TransCanada invests nearly $1 billion in pipeline integrity and maintenance – each year. That’s $115,000 every hour!