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Air Quality Best Practices

Best Practices and Specific Actions
Range is committed to ensuring compliance and meeting its voluntary commitments to limit and manage emissions. Through engineering and implementation of best practices, Range manages and limits emissions while enhancing overall production. For example, Range conducts emission inventories and regular field inspections. Annually, Range reviews well site and compressor station designs to improve emissions controls by applying our core values of performance, integrity, innovation, and transparency.  

Drilling
Implementing controls to limit the combustion of fuels is a top priority. In Pennsylvania, Range operates a natural gas-powered drilling rig. Flaring is limited to situations where it is necessary for repair, maintenance, emergency or safety. Selective Catalytic Reduction (SCR) technology is sometimes used for reducing NOx emissions from drilling, provided the rig is capable of accommodating the control. Range reduces natural gas flaring and the resulting greenhouse gas emissions by capturing and enclosed burning flaring, when possible. 

Flowback
Range complies with the EPA’s green completions standards. A closed-loop system, constructed before permanent production facilities are installed, is utilized on new sites to capture emissions and eliminate the need for flaring.   

Temporary Water Transfer
Range maintains a robust water-recycling program that utilizes permanent and temporary water transfer pipelines which significantly reduces truck traffic. Additionally, when trucks are used during water transfer, Range requires reduced idling times at its locations. Trucks are tracked by satellite to ensure the most efficient and safe operations possible. 

Production
Range’s permanent shale production facilities are outfitted with emissions-reducing technologies. Range continuously evaluates its facilities through a leak detection and repair program used to find new and innovative methods for emissions management. 

View Range's fact sheet here on best management practices for a typical Marcellus shale well. 

A variety of measures are employed on permanent production facilities to eliminate vapors and recover gases. The latest facility designs in Pennsylvania allow for on-site gas recovery to reinsert gas that would otherwise be vented into the production and sales lines.