The turbo-compressor train, which is said to a critical part of the $1.3bn NGTL pipeline expansion project, is planned to be commissioned in fourth quarter of 2019.

Intended to expand the capacity of the NGTL system, the project involves construction of five pipeline sections to meet additional needs of natural gas shippers.

The TransCanada's Winchell Lake Compressor Station will be used to re-pressurize natural gas along the NGTL's Western Alberta System Mainline, which exports natural gas into Washington, Oregon, California, and Nevada.

Under the contract, Siemens will be responsible for the supply for the compressor train includes an RFBB36 pipeline compressor driven by Siemens aeroderivative SGT-A35 gas turbine, and associated auxiliary systems.

Siemens said in a statement: “The SGT-A35 gas turbine configuration incorporates a variety of proprietary technical features that have positioned the turbine as the engine of choice for reliability and lowest total cost of operation in the gas transmission market.”

The RFBB36 compressor is designed to offer some of the highest compression efficiency in the midstream market. It also delivers the lowest CO2 and methane gas emissions compared to other pipeline compressors.

Siemens North America Oil & Gas vice-president Patrice Laporte said: "Siemens has provided TransCanada with customer care services for many years and offers support to its approximately 160 aeroderivative gas turbines operating today.

"In addition to our good relationship with TransCanada, our proven solution provides an especially efficient, cost effective, and environmentally friendly option for safely transporting natural gas to markets and consumers.”

NGTL transports natural gas sourced in the Western Canadian Sedimentary Basin to markets in Canada and the US.


Image: The Siemens’ RFBB36 pipeline compressor. Photo: courtesy of Siemens AG.