How and where are flow meters located for leak detection?

Our Answer

Norm asked this question on August 25, 2016

Hi Norm,

Leak Detection is a critical part of Enbridge pipeline operations, and flow measurement is extensively used to support it. Typical configuration for flow measurement on a pipeline is to be located at the injection and delivery locations. Based on pipeline size and characteristics, flow measurement may additionally be located at intermediate pump stations.

In addition to flow measurement based leak detection, we are also currently conducting a $4-million fiber optic leak detection pilot project along a 20-mile stretch of our Flanagan South pipeline in Missouri—testing and validating fiber optic cable-based systems for their ability to quickly and reliably identify very small leaks, while providing accurate leak locations.

As part of an industry partnership, we have also developed the ELDER leak detection simulator—a state-of-the-art testing tool, and the first of its kind in the world. The ELDER tool has yielded invaluable results while testing external leak detection technologies on crude oil pipelines, in real-world conditions.

We’re evaluating aerial-based leak detection technologies, with sensors suitable for mounting on light aircraft or helicopter, as part of another industry partnership.

We also use acoustically sensitive SmartBalls—which can identify pinhole-sized leaks as they flow silently through our pipelines—as a “due diligence tool” along selected segments of our network, based on need.

These proactive investments in innovation and leak detection are part of our ongoing effort to adapt and harness technology for safety’s sake.