air

gas conservation – reducing incineration of our gas

LIPG is pleased to report we are conserving 98% of the produced gas in the Lochend area.

As shown on the graph, we continue to make significant progress, increasing conservation from approximately 40% in September 2012 to over 90% in 2013 and more recently to 98%.

Once a well is drilled, it is completed using hydraulic fracturing techniques where over 99% of the completion is done with water, sand and nitrogen with less than 1% additives being used to assist in the completion. To help in the flow-back or clean-up stage of a well, we use nitrogen (an inert gas that makes up 78% of the earth’s atmosphere) to create energy; much like the fizz in soda drinks.  To lower the concentration of nitrogen, before conserving the gas into pipelines, we need to burn the returning gas in high efficiency incinerators.  On a case-by-case basis, some LIPG member companies have been able to reduce this flow back period from 2 weeks to one week or less.

In late 2011, member companies voluntarily replaced flare stacks with incinerators, which combust more than 98% of all solution gas. In an incinerator, gas and air are mixed and ignited in an enclosed chamber resulting in higher combustion temperatures and improved combustion efficiency, without the presence of a visible flame.  These incinerators exceed the requirement of government regulations.

For more details on incineration, flaring and regulatory requirements, please visit the AER website at: AER EnerFAQ – Flaring and Incineration