Critical Sour Gas
Wells
Some wells are designated as critical sour gas wells
because they have the potential for releases of hydrogen sulphide that might
affect nearby residents. Most such wells are located in the western half of
Alberta and in northeastern British Columbia. Companies and governments require emergency response planning, public
consultation, safety equipment and worker training for critical sour gas
operations.
When the drill bit enters the critical zone in a well
where sour gas will likely be encountered, additional precautions may include
providing breathing apparatuses for rig personnel and notifying people living
nearby.
Petroleum Communication Foundation. Our Petroleum Challenge: Exploring Canada's Oil and Gas Industry, Sixth Edition. Calgary: Petroleum Communication Foundation, 1999. With permission from the Centre for Energy.
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