September 8, 2005
New technologies used to test
integrity of Golden Prairie natural gas transmission
TransGas is investing $9 million this
year to test the safety and integrity of its natural gas
transmission pipelines across Saskatchewan. This
includes using new technologies to test the Golden
Prairie pipeline in a more cost-effective and
environmentally friendly manner than ever before.
The approximately month-long integrity
testing process will take place in several stages, and
will benefit communities in that immediate area. This
week, crews began modifying the pipeline at two points
to allow for a series of in-line inspection tools known
as "pigs." Although in the past TransGas had to vent
natural gas into the atmosphere at this stage to reduce
pipeline pressure, the use of a drawdown compressor will
reduce greenhouse gas emissions and save over $80,000 on
the Golden Prairie testing project alone.
Flow of gas in this pipeline will be
temporarily stopped during the week of Aug. 29th, but
the modifications outage will not disrupt natural gas
service or pose a danger for area residents.
The next stage of testing, which begins
the week of September 12th, involves inserting different
pigs into the pipeline to clean it from the inside. The
pigs will be placed into the pipeline and will travel in
the stream of natural gas for 28 kilometres before
arriving at the receiving facility.
During the week of September 19th,
TransGas will insert a computerized in-line inspection
tool into the pipeline. While traveling through the
line, this inspection tool will measure wall thickness
and detect potential problems such as corrosion,
obstructions, or dents in the line. Once this data is
collected, TransGas will analyze it to determine if any
action is required to maintain the pipeline's safety and
"This testing is part of TransGas'
ongoing program to ensure the integrity of the
approximately 14,000 kilometres of pipeline it owns and
operates within Saskatchewan," says Daryl Posehn, Senior
Vice President of TransGas. "Scheduled maintenance on
the Golden Prairie pipeline focuses on our top
priorities - public safety and reliable natural gas
service to our customers."
Last year TransGas invested
approximately $9 million in the safety, integrity and
reliability of its pipeline and other facilities across
the province. Only four natural gas pipeline leaks were
detected, and were repaired accordingly.
For further information, please contact:
Phone: (306) 777-9635
Cell: (306) 529-8037